Your rig. Your sound. Your guide.
Artemis
User Manual.
Set up your pedalboard, shape your sound
and take it to the stage.
Trinity Labs · trinity-labs.co.uk/help
Source revision ecd27f8. For the latest guidance, visit the online help centre.
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Contents
Select a topic to jump to it. Links within the manual stay in this document where possible. Screenshots show the example setup used in the guide.
Part one · User manual
User manual
Artemis User Manual
ArtemisOS / Houston v1.0.0
Start with Quick Start to connect your instrument and hear your first sound. Work through My Pedalboard, Building a Preset and Playing Live to prepare your performance setup. Keep the Digital Effects Reference nearby when choosing effects.
Screenshots show the example sounds and settings used in the walkthroughs. Your preset names, colours and library contents may differ.
User manual
Introduction
Artemis brings your effects pedals and built-in digital effects together in one pedalboard system. You can arrange your signal path, create presets, and recall sounds as you play. This introduction takes you through the startup screen, connecting to Wi-Fi, checking for updates, and opening Houston, the main application.
Launchpad Basics
When you switch on Artemis, it opens Launchpad. This is where you manage device settings, including Wi-Fi, software updates and storage, and launch applications.
Houston is the main application for setting up your pedalboard, working with effects and managing presets. You can open it from the Apps tab in Launchpad.
Launchpad Apps tab showing Houston ready to launch
Connecting to Wi-Fi
For your first setup, we recommend connecting Artemis to a Wi-Fi network. This makes it easy to download software updates and browse Neural Amp Modeler (NAM) models, which recreate the sound of amplifiers and pedals.
Open the Wi-Fi tab in Launchpad and connect to your network.
Launchpad Wi-Fi settings
Artemis Software Updates
Once connected, we recommend checking for software updates so you have the latest features and effects. Follow the Wi-Fi instructions below, or see USB Updates in Maintenance and Troubleshooting to transfer an update from your computer.
Wi-Fi Updates
- Connect Artemis to a Wi-Fi network.
- Open the Updates tab in Launchpad and select Wi-Fi.
- Follow the guided wizard to download and install the update. If prompted, delete a previously cached update bundle to make space. This cached bundle is safe to delete.
- When installation is complete, reboot Artemis when prompted. Complete the matching firmware update if Launchpad requests it, following any further restart prompts.
Wi-Fi update page in Launchpad
User manual
Houston
When you have finished setup and any update has completed, open the Apps tab in Launchpad. Find Houston and tap the orange play button to launch it.
Houston Home Screen
The Home pop-up provides shortcuts to your pedalboard, presets, songs, setlists, tuner and settings. Open it with a brief press of the tl logo button on the left of Artemis. Tap a shortcut to continue, or press a footswitch to return to your previous screen.
Houston Home screen
The following sections introduce the main areas of Houston. To connect your instrument and get your first sound, follow Quick Start.
My Pedalboard
My Pedalboard tells Artemis which pedals are connected to each physical loop. The names and colours you choose help you recognise those pedals in the Preset Editor. Set up My Pedalboard when you first open Houston, before building your presets.
Setup order: check your connections → choose a pedalboard configuration → add pedals to the library → assign them to the matching loops → check the result before building a preset.
1. Check your physical connections
Start with the pedals connected to Artemis and make a note of which loop each pedal uses. See Connections for send/return wiring and Routing Basics for signal-path options.
Plan your loop connections before setup: L1–L3 can be assigned to either Bus A or Bus B; L4–L5 are restricted to Bus A. Connect any pedal you need on Bus B to L1, L2 or L3. L6/L7 form the fixed stereo loop.
The walkthrough uses the following physical setup:
Physical pedalboard used for the walkthrough
| Artemis loop | Connected pedal | Name used in My Pedalboard |
|---|---|---|
| L1 | BOSS OC-2 | OC-2 |
| L2 | Ibanez TS9 | TUBE SCREAMER |
| L3 | BOSS DS-2 | DS-2 |
| L4–L5 | Unused | Leave empty |
| L6/L7 | BOSS CE-20, connected in stereo | CE-20 in both L6 and L7 |
2. Open My Pedalboard and choose a configuration
Open My Pedalboard using the shortcut in the Home pop-up. Alternatively, tap the Home icon in the top navigation bar to open the home carousel, find My Pedalboard, and tap Edit.
Choose the pedalboard configuration you want to set up using the numbered selector in the navigation bar. You can keep separate configurations for different physical pedalboards, such as boards you use with different bands. This walkthrough uses My Pedalboard 1.
On first setup, the loop slots are empty:
My Pedalboard 1 with empty loop slots
3. Add your pedals to the library
Create one library entry for each pedal in the example:
- Drag the library drawer up from the bottom of the screen and tap + Add Pedal. You can also begin by tapping an empty pedal slot.
- Enter a Pedal Name, then choose a Category and Colour. Use a name and colour that make the pedal easy to recognise.
- Tap Add to add the pedal to your library.
- Repeat for the remaining pedals. Create the stereo CE-20 entry once; you will use it in both L6 and L7.
New pedal dialog with Pedal Name, Category, Colour and Add controls
Your library should now contain OC-2, TUBE SCREAMER, DS-2 and CE-20. The order in the library does not determine their loop assignments.
Pedal library containing the four example pedals
4. Assign pedals to the matching loops
Drag each pedal from the library into the slot that matches its physical connection:
- Drag OC-2 into L1.
- Drag TUBE SCREAMER into L2.
- Drag DS-2 into L3.
- Leave L4 and L5 empty.
- Drag CE-20 into L6, then drag the same library entry into L7 to represent both stereo channels.
Match the physical loop numbers here. You will choose the order in which effects process your signal later in the Preset Editor. The pedal names and colours help identify each effect.
Completed My Pedalboard with OC-2 in L1, TUBE SCREAMER in L2, DS-2 in L3 and CE-20 in L6 and L7
5. Check your setup and continue
Compare the on-screen assignments with the cables connected to Artemis. For this example, L1–L3 should contain the three mono pedals, L4–L5 should be empty, and CE-20 should appear in both L6 and L7.
If you also use MIDI-controlled pedals, see MIDI Librarian for instructions on finding your devices in the MIDI library and adding them to the current pedalboard configuration.
Once your pedalboard setup is complete, continue to Quick Start to get your first sound, or Building a Preset to arrange your effects and create your first preset.
Presets, Songs and Setlists
Houston organises your sounds into presets, songs and setlists:
| Item | Purpose |
|---|---|
| Preset | A saved sound containing routing, virtual pedal and amp settings, MIDI messages and mixer levels. |
| Song | A performance layout with up to five presets or utility actions, recalled using the five footswitches. |
| Setlist | An ordered collection of songs for a performance. |
Build your sounds first, arrange them into songs, then organise your songs into a setlist. A song can use descriptive preset names such as Intro, Verse and Chorus to make sound changes easy to follow while playing.
The Jam Page is the song performance page. It lets you switch between the song's sounds and use utility actions such as the tuner, recorder, mute and MIDI functions. See Jam Page overview for its controls and Creating a song for the complete setup walkthrough.
For direct control of individual pedal loops, use Stompbox Mode. Its bypass states and pedal order are independent of songs.
Presets can be shared between songs. Changes to a preset's mixer levels or expression assignments also affect the shared library preset, so check other songs that use it after editing.
User manual
Quick Start
Before you begin
For this walkthrough, use Artemis, its supplied 12 V DC, 2 A, centre-positive power adapter, an instrument, an amplifier and two 6.35 mm (1/4-inch) TS audio cables. To add a pedal, you will also need the pedal's power supply and two patch cables.
Turn down the amplifier before making or changing connections. Connect Artemis using its DC adapter; USB does not replace its power supply.
First-time setup
- Connect the instrument to IN1 and OUT L to the amplifier's instrument input. The rear-panel photograph labels IN1 as IN A.
- Connect the supplied power adapter and switch on Artemis.
- Follow Launchpad Basics to connect to Wi-Fi and check for updates, then open Houston.
Get your first sound
- Create a preset using Add Preset → Create New Preset from an empty song slot, then choose Full. See the empty Preset Editor for the layout.
- Set Path A's input circle to 1 and BUS B to Off.
- Leave the physical loops and virtual blocks unused or bypassed, including L6/L7. Set the left output selector to MIX.
- Open the mixer. Make sure Bus A is not muted and its level is not turned down to silence.
- Play the instrument and gradually raise the amplifier volume. You should hear the instrument through Artemis without added effects.
- Name the preset, leave the editor, and accept the save prompt.
If there is no sound, follow the troubleshooting checks before adding effects.
Add one pedal
- Turn down the amplifier. Connect L1 SND to the pedal's input and the pedal's output to L1 RTN, then power the pedal.
- In My Pedalboard, create an entry for that pedal and assign it to L1.
- Return to the preset and drag the pedal from the library into the first position on Bus A.
- Set the pedal itself to an active effect setting, then raise the amplifier volume and play.
- Double-tap the pedal card to compare the loop enabled and bypassed. With the loop enabled, the signal passes through the pedal; with it bypassed, the signal skips the loop.
- Save the preset when leaving the editor, then recall it to check the setting.
Shut down
Save your work, turn down the amplifier, and open the Home pop-up with a brief press of the tl logo button. Tap Shut down. The Home screen also identifies holding the power button for 3 seconds as a shutdown shortcut. Allow shutdown to complete before disconnecting power.
User manual
Connections
Rear Panel Connections
Artemis rear panel showing labelled inputs, loop sends and returns, expression inputs, control outputs, audio outputs, power, USB and MIDI sockets
Rear view of Artemis. The guide below follows the connector groups from left to right as shown in the photograph.
| Panel label | Position | Function |
|---|---|---|
| IN A / IN B | Leftmost pair: A above B | Two audio inputs, routable to Bus A or Bus B. |
| L1–L5: SND / RTN | Five pairs, each with SND above RTN | Reorderable mono effects loops. Connect SND to the pedal's input and the pedal's output to RTN. |
| L6/7: SND L / SND R / RTN L / RTN R | Two pairs within the L6/7 outline: left channel on the left, right channel on the right; sends above returns | Fixed stereo effects loop. Connect the sends to the effect's left/right inputs and its left/right outputs to the matching returns. |
| EXP 1 / EXP 2 | EXP 1 above EXP 2 | Two TRS expression pedal inputs. |
| CTRL 1 / CTRL 2 | CTRL 1 above CTRL 2 | Two isolated relay-contact outputs for compatible amplifier switching or footswitch inputs. |
| OUT L / OUT R | OUT L above OUT R | Main left and right audio outputs. |
| 12 V DC | Above MIDI IN | Power input for the supplied 12 V DC, 2 A, centre-positive adapter. |
| USB | USB-C socket above MIDI OUT | USB device connection to a host computer. Artemis still requires its DC power supply. |
| MIDI IN / MIDI OUT | Lower-right DIN sockets: IN on the left, OUT on the right | MIDI IN receives messages from an external controller; MIDI OUT sends messages to connected equipment. |
Audio inputs, outputs and loop sends/returns use 6.35 mm (1/4-inch) TS connections. Expression inputs use TRS connections; CTRL outputs use TS connections.
The photograph labels the audio inputs IN A and IN B. These correspond to input 1 (IN1) and input 2 (IN2) respectively in the preset walkthroughs. The input numbers identify sockets; Bus A and Bus B identify the signal paths you route them to.
Example setups
For a mono instrument and amplifier, follow Quick Start. Each mono pedal connects between one loop's SND and RTN sockets.
For a stereo pedal in L6/L7, connect both channels as shown below. Feed OUT L and OUT R to the corresponding inputs of your stereo listening system.
Enable the stereo loop in the preset. Use the output selectors to choose a mix feeding the stereo effect or separate left/right paths, as described in Selecting outputs and using the stereo loop. For a two-input setup, feed IN1 and IN2 from the source's left and right outputs and choose those inputs for the corresponding buses.
Expression, control and MIDI connections
Connect an expression pedal to EXP 1 or EXP 2 with a TRS cable. Houston provides calibration, response curves and smoothing in Expression / Control. Follow Expression calibration and assignment before assigning it to a preset. Software calibration adjusts the usable travel; it does not change the socket's electrical wiring. For pedal wiring and compatibility advice, contact support with the pedal model.
CTRL 1 and CTRL 2 provide isolated relay contacts through TS sockets for amplifier switching or footswitch emulation. Check that the amplifier accepts a relay-contact footswitch connection before connecting it. Ask support if its wiring or switching requirements are unclear. See CTRL outputs to save the required states with each preset.
Use standard 5-pin DIN cables for MIDI IN and MIDI OUT. MIDI carries control messages, so an external MIDI pedal still needs its own audio send/return connections. See MIDI connections and channel setup.
USB connection
The USB-C port connects Artemis as a device to a computer for file transfer. Use a data-capable cable and keep Artemis connected to its separate DC power supply. Connect the computer directly to Artemis; this workflow does not use a USB memory stick.
- Save your work in Houston and return to Launchpad.
- Open the relevant transfer guide: NAM, IR, Recordings or Updates. General transfer controls are also available alongside the file/storage controls.
- Connect the cable and enable USB transfer when prompted. The computer receives the ARTEMIS drive.
- Copy files into the folder specified by the guide, or copy recordings and backup archives to the computer.
- Wait for copying to finish, then safely eject the ARTEMIS drive on the computer.
- Finish the transfer in Launchpad so Artemis can use its storage again.
While the computer owns the drive, Launchpad prevents local file operations and application launches that need that storage. Ejecting on the computer and finishing the transfer on Artemis are both required. This is a file-transfer connection; use the DIN ports for the MIDI procedures in this manual.
User manual
Routing Basics
System Diagram
Artemis system diagram
Buses and loop assignment
A bus is a signal path through Artemis. Effects placed along the same bus process the signal in series: the output of one feeds the next. Bus A and Bus B can run in parallel, processing separate signals or two copies of the same input before the output stage.
Choose each bus's source independently. One instrument can feed both buses by selecting the same input for each. Two instruments or a stereo source can use input 1 for one bus and input 2 for the other.
| Loop | Assignment |
|---|---|
| L1–L3 | Either Bus A or Bus B. |
| L4–L5 | Bus A only. |
| L6/L7 | Fixed stereo loop after the bus processing and mixing stages. |
The five mono loops are shared: a physical pedal can occupy one place in the route at a time. Moving its card changes the signal order without changing its cables. Use L6/L7 for a stereo pedal that should process the final left and right paths.
For the editor controls and examples, see Buses, inputs and outputs.
Virtual block placement
Virtual 1 and Virtual 2 insert digital processing into the analogue route. Each block contains its own pedal chain and optional amp and cab stages. Place a block at Pre, Mid or Post on either bus.
On Bus A, Mid is after slot 2; on Bus B, it is after slot 1. Pre is before the first slot, and Post is after the last slot. These positions refer to the reordered chain, not the rear-panel loop numbers. Bypassed slots still occupy their positions.
For example, OC-2 in A1 and Tube Screamer in A2 both feed a virtual block at Bus A Mid. Moving Tube Screamer to A3 places it after that block. If both virtual blocks share an insertion position, the signal passes through Virtual 1 followed by Virtual 2.
See Virtual block positions for the full table and Your first preset for a worked example.
Levels, mixing and bypass
Use the mixer to balance Bus A and Bus B, and to set the input and master levels of each virtual block. MIX at an output selects the combined bus mix; separate output routing preserves the individual paths. Check both the route and the levels when changing between these arrangements.
The input buffers can be switched together using the input-buffer control. Bypassing them changes the analogue input path and may change the level or tone. The output pads provide nominal −6 dB attenuation on the bus outputs before the mixer. Bus B's polarity control reverses that bus's signal polarity; compare it when combining two paths that sound unexpectedly thin.
Bypassing a physical loop skips its send/return path. Bypassing a virtual block uses the analogue through-path at that insertion point; bypassing one effect inside the block affects only that effect. Check transitions while playing before relying on an effect tail during a performance.
Save routing, bypass states, levels, expression assignments, CTRL states and the buffer choice with the preset. Song slot assignments are saved with the song. Stompbox Mode maintains its own bypass states and pedal order independently of songs.
User manual
Building a Preset
A preset brings together your physical pedal routing, virtual effects, mixer levels, MIDI messages and CTRL output states. Start with My Pedalboard configured to match your wiring so that each physical pedal appears with the correct name and colour.
Creation order: choose a template → select inputs and bus mode → arrange physical pedals → place and edit virtual blocks → check outputs and levels → set any CTRL or buffer options → name, save and test the preset.
Preset Editor overview
The main Preset Editor shows the signal route from the input selectors on the left to the outputs on the right. Bus A is the yellow path; Bus B, when enabled, is the blue path. Physical pedal cards occupy positions along those paths, and the orange chip symbols mark the available virtual-block positions.
Empty Preset Editor showing Bus A, physical loop positions, virtual-block positions, input and output selectors, and the Bus B mode control
| Part of the editor | Purpose |
|---|---|
| Input circles marked 1 or 2 | Select the rear-panel input feeding each path. Tap to cycle the choice. Input 1 is IN1 and input 2 is IN2. |
| Physical pedal cards | Represent connected pedals. Their position determines the order in which the signal reaches them. |
| Virtual 1 and Virtual 2 | Digital processing blocks placed at Pre, Mid or Post on either bus. Each opens into its own effect chain. |
| BUS B: Off / Dry / Effects | Choose whether the second path is unused, carries a dry signal, or contains effects. |
| Output circles beside OUT LEFT and OUT RIGHT | Tap to cycle the output routing. Examples below show separate L/R routes and MIX. |
| Green mixer controls | Adjust bus and virtual-loop levels. |
| CTRL | Set the two relay control outputs for the preset. |
| Warning-triangle icon | Toggle the input buffers. |
| Orange drawer handle at the bottom | Open or close the library. |
| Pencil beside the preset name | Rename the preset. |
The on-screen gesture guide reads Swipe to preview · Tap to edit · Hold to drag · Double tap to bypass. Hold a card to move it, and double-tap a pedal or virtual block to change its bypass state. Tap a virtual block to edit the effects inside it; swipe across it to preview its pedals, amp and cab from the main routing page.
Your first preset
This walkthrough builds OC-2 → Tube Screamer → a virtual delay/reverb chain on Bus A. It uses the physical wiring from My Pedalboard: OC-2 in L1 and TS9 in L2. Connect your instrument to IN1 and use OUT L for the listening setup. Leave Bus B off while building this first route.
The later screenshots show additional options, including Bus B, amp models and the stereo CE-20. Add these once the basic route is working.
1. Create a preset and choose a template
From a song's empty slot, tap Add Preset → Create New Preset. To work on an existing sound, select it on the Jam Page and tap Edit Preset.
| Template | Starting point |
|---|---|
| Full | Physical pedal routing and virtual effects together. Use this for the walkthrough. |
| Virtual Only | A virtual rig built from effects, an amp and a cab. |
Choose a Starting Template screen with Full and Virtual Only options
Choose Full, check that Path A's input circle reads 1, and set BUS B to Off. Check the output selection before listening; the example starts with MIX at both output selectors.
2. Add and arrange physical pedals
Open the library drawer using the orange handle at the bottom. The Physical view shows the pedals configured in My Pedalboard, along with Virtual 1 and Virtual 2. Use My Pedalboard in the drawer if the physical pedal names or connections need correcting.
Preset Editor library drawer showing Virtual 1, Virtual 2 and the physical pedals assigned to L1–L5
- Drag OC-2 into the first position on Bus A.
- Drag TUBE SCREAMER into the second position.
- Close the drawer to inspect the route, then play through the pedals.
- Double-tap each pedal card to compare its enabled and bypassed sound.
OC-2 and Tube Screamer placed in positions A1 and A2 on Bus A
A1, A2 and similar labels are positions in the preset's signal chain, not rear-panel loop numbers. A pedal remains connected to its original physical loop when you move its card. Hold and drag a card to change its place in the chain.
L1–L3 can move between Bus A and Bus B when Bus B is in Effects mode. L4–L5 remain on Bus A. A physical loop is shared between the buses, so place it on the path where it is needed. The alternative below puts DS-2 on Bus A, with Tube Screamer followed by OC-2 on Bus B.
Alternative routing with DS-2 on Bus A and Tube Screamer followed by OC-2 on Bus B
3. Place a virtual block
A virtual block is a digital processing chain inserted into an analogue bus. It is separate from the individual digital pedals, amp and cab inside it. The two blocks appear as Virtual 1 and Virtual 2 in the library and Virtual Loop 1 or Virtual Loop 2 when editing their contents.
Drag a virtual block from the main library onto an orange chip position. For this walkthrough, place Virtual 1 at Mid on Bus A, after OC-2 and Tube Screamer.
| Position | Bus A | Bus B |
|---|---|---|
| Pre | Before physical slot 1 | Before physical slot 1 |
| Mid | After slot 2 | After slot 1 |
| Post | After slot 5 | After slot 3 |
Positions refer to slots in the reordered chain. Empty or bypassed positions do not move the Mid or Post insertion point. Both Post positions are before the final stereo loop. See Virtual block positions for the routing reference.
Virtual blocks placed at Mid and Post on Bus A, with the Pre chip position still available
You can place the second block on the same bus or on Bus B. The next example shows a virtual block at Mid on each bus, with DS-2 before the block on Bus B.
Virtual blocks at Mid on Bus A and Bus B
4. Add effects inside the virtual block
Tap the placed virtual block to open its editor. The screen has five pedal positions followed by Add amp and Add cab. Labels such as V2-1 mean pedal position 1 inside Virtual Loop 2; they are not physical loop connections.
Empty Virtual Loop 2 with five pedal positions followed by Add amp and Add cab
- Tap an empty pedal position or open the bottom drawer.
- Choose Pedals, then a category such as Delay or Reverb.
- Add an effect to the selected position. For the walkthrough, add Echo followed by Freeverb.
- Tap an effect to open its controls and adjust it while playing. Use its bypass control to compare the sound with and without processing.
- Hold and drag effect cards when you want to change their order.
Check that the virtual block is enabled before listening. Use the power control at the top right of the virtual editor to change the whole block's bypass state.
Virtual effect library with Pedals, Amps and Cabs tabs and effect categories
The effect's focus view provides its individual controls. Double-tap a knob to reset it to its default value. The expression assignment panel lets you choose None, EXP1 or EXP2 for the selected parameter. These assignments are saved with the preset and remain active on other pages, as indicated in the panel.
Pitch Shifter focus view with Detune, Wet and Dry controls and an expression assignment panel
Use Add amp and Add cab, or the drawer's Amps and Cabs tabs, when your preset needs those stages. You can build a virtual effects chain without adding an amp or cab. For downloaded captures, follow Downloading NAMs from TONE3000 and Using NAMs in a preset.
The expanded example below contains Pitch Shifter, Echo and Freeverb followed by a NAM amp and a cab. The arrows show the processing order from left to right.
Virtual Loop 1 containing Pitch Shifter, Echo and Freeverb, followed by a NAM amp and a cab
Return to the main routing page using the back arrow. Swipe across a virtual block to preview its contents, or tap it to return to editing. Double-tapping the whole block bypasses that virtual chain; bypassing one effect inside it changes only that effect.
Main routing page showing pedal and amp previews inside the two virtual blocks
5. Check levels, name and save
For the basic walkthrough, follow the route on screen: IN1 → Bus A: OC-2 → Tube Screamer → Virtual 1 at Mid: Echo → Freeverb → mixer → OUT L. Leave unused stages bypassed, including the fixed stereo loop if it is not part of this sound.
- Confirm that the blocks you want to hear are enabled, and that the input and output choices match your cables.
- Open the mixer with the green sliders icon. Compare the preset with its effects bypassed and adjust levels. See Changing preset levels from a song for the mixer controls.
- Set any required CTRL outputs and input-buffer option before saving.
- Tap the pencil beside New Preset and give the sound a descriptive name.
- Leave the editor using the back arrow and accept the save prompt to keep the new preset or your changes to an existing one.
- Recall another preset, then return to this one. Check its routing, bypass states, effect settings and levels to confirm the saved sound is correct.
You can now use the preset in a song. See Creating a song to arrange it alongside your other sounds.
Buses, inputs and outputs
The buses are two signal paths through Artemis. Pedals along one bus process its signal in series. Enabling Bus B lets you run another path alongside Bus A, either from the same input or from the other input.
Choosing the bus inputs
Tap the input circle beside IN PATH A or IN PATH B to cycle between inputs 1 and 2. These correspond to IN1 and IN2 on the rear panel. Choose the input with the connected signal; enabling Bus B does not by itself feed it from Bus A's input.
For one instrument feeding parallel paths, select the same input on both buses. For two separate input signals, select input 1 for one bus and input 2 for the other.
Choosing the Bus B mode
| Mode | Behaviour | Typical use |
|---|---|---|
| Off | Bus B is unused. | A single chain on Bus A. |
| Dry | Bus B provides a path without its own effect chain. | Blend an unprocessed signal with Bus A. |
| Effects | Bus B has positions for physical loops and virtual blocks. | Two processed paths, with either a shared input or separate inputs. |
For a dry blend, select Dry and set both input circles to 1. The screenshot shows OC-2 and Tube Screamer on Bus A, a direct blue path on Bus B, and MIX selected at both outputs. Use the mixer to set the balance between the paths. The fixed stereo effect sits after these paths, so an enabled effect there can still process the combined sound.
Dry Bus B sharing input 1 with the processed Bus A path and MIX selected at both outputs
Selecting outputs and using the stereo loop
Tap the circles beside OUT LEFT and OUT RIGHT to cycle their routing choices. MIX selects the combined bus mix; the L and R selections shown below keep the left and right routes separate. Check both output selectors whenever you change from a mixed route to a stereo setup.
The stereo example uses input 1 on Bus A and input 2 on Bus B, with Effects enabled and the outputs showing L and R. To feed both paths from one instrument instead, choose that instrument's input for both buses.
Two-path preset with separate inputs 1 and 2, Bus B in Effects mode and L/R output routing through the CE-20 stereo loop
The small pedal cards at the right represent L6/L7, the fixed stereo loop. They stay at the end of the route rather than moving into the five reorderable positions. Connect a stereo pedal's left and right channels to the matching sends and returns, and check its bypass state when you want it included in the preset.
CTRL outputs
Use CTRL 1 and CTRL 2 to switch compatible external equipment, such as an amplifier channel, as part of a preset. These are relay-contact control connections; their action depends on the connected equipment's footswitch input.
- Connect the appropriate CTRL socket to the compatible device's switching input. See Rear Panel Connections for the sockets and cable type.
- Tap CTRL in the Preset Editor's top bar.
- Tap 1 or 2 to set the required output state. In the screenshot, 2 is highlighted orange and 1 is inactive.
- Check the response of the connected device, then save the preset. Both CTRL states are saved with the preset.
CTRL menu open with control output 2 active and output 1 inactive
For example, two presets can use different CTRL 1 states to select different channels on a compatible amplifier while also changing the effects route.
Disabling input buffers
The warning-triangle icon in the Preset Editor toggles the input buffers. The setting applies to both inputs together and is saved with the preset.
- Tap the warning-triangle icon to disable the buffers.
- Read the Disable input buffers? dialog. Bypassing the buffers changes the analogue input path and may change the signal level or tone.
- Tap Disable buffers to proceed, or Cancel to keep the current state.
- Compare the sound and levels. Use the same triangle control to turn the buffers back on when needed.
- Save the preset to retain your chosen buffer state.
Input-buffer confirmation explaining that the setting affects both inputs and is saved with the preset
Older presets without a stored buffer setting leave the current buffer state unchanged. Check the setting explicitly when updating an older preset.
Editing and managing presets
Open Preset Manager → Library to find a saved preset. Use the search and sorting controls to locate it, then choose Edit to open its route and settings. Save when prompted on leaving the editor to keep your changes.
Presets are shared library entries. Editing a preset used by several songs changes that sound in all of them. To make a variation for one song, use Duplicate in the library, edit and name the copy, then assign that copy to the song slot.
The library supports folders for organising presets. Choose the destination folder before creating a preset, and use names and tags that make the sound easy to recognise. A duplicate is created alongside the original with a distinct name.
The trash button deletes the library preset immediately. Archive your data before removing sounds you may need again. Check songs that use a deleted preset and replace their missing assignments; removing a preset from a song slot is a separate operation from deleting it from the library.
User manual
MIDI
Artemis can receive commands from a controller, send commands to external pedals, and send or receive MIDI clock. Set up the cable direction and channels first, then test one message before building a complete performance layout.
Connections and channel setup
To control Artemis, open Preferences in the Home/settings carousel. Set MIDI IN MODE to Receive and choose the same MIDI IN CHANNEL as your controller. Off disables mapped input control. Thru also receives mapped commands and forwards incoming MIDI; use it only when your downstream devices need those messages.
Preferences showing MIDI input mode, input channel and the MIDI map shortcut
To organise external MIDI pedals, open My Pedalboard → Edit, then tap the blue MIDI icon. Add each device with the plus button and set its channel to match the channel configured on the pedal itself.
MIDI device configuration for the selected pedalboard
Give devices different receive channels when they need independent commands. Adding a device in Houston does not change that device's own settings.
MIDI Librarian
The Library button opens the searchable MIDI Librarian. Find a device, review its listed functions, and favourite it for quick access through the star filter. Use those function definitions when building messages for devices assigned to your pedalboard.
MIDI Librarian with searchable device entries
The librarian uses the community Open MIDI library. Check the external device's manual if a command is missing or its behaviour differs from the listed entry.
Controlling Artemis from a MIDI controller (MIDI In)
- Connect the controller's MIDI OUT to Artemis MIDI IN.
- Set Artemis to Receive and match the receive channel to your controller.
- Open Open MIDI map & help from Preferences, or choose Receive from the Preset Editor's MIDI menu.
- Find the action or library item you want to control.
- Enter the displayed PC number, or the displayed CC number and value, in the controller.
- Send one message and check the result on Artemis.
MIDI menu offering Send, Clock and Receive
Artemis MIDI receive map with input settings and mapped actions
For a first test, load a song with a sound preset in slot 1 and send PC 1. This selects Jam slot 1. Artemis uses MIDI numbers 0–127; a controller that displays programs as 1–128 may need its displayed number offset by one.
The live map lists addresses for your actual preset, song and setlist library. Recheck it after reorganising or deleting library items rather than relying on a remembered position. Recalling a library preset by CC makes it active; it does not replace a saved song slot. Use the Jam assignment actions in the reference when that is your intention, then save the song.
Controlling external MIDI pedals (MIDI Out)
Connect Artemis MIDI OUT to the external pedal's MIDI IN. Set the pedal's receive channel first, then use that channel in Houston.
Send messages with a preset
- Open the preset and tap the MIDI icon (the DIN socket symbol).
- Choose Send.
- Add a message row and select PC or CC.
- Set the destination channel and program/controller number. For a CC message, also set its value.
- Tap the row's send arrow to test it immediately.
- Add further messages as needed, then save the preset.
- Select another preset and return to this one to check the complete recall.
Preset MIDI Send table with message rows and send controls
For example, if a pedal's manual assigns a sound to PC 12 on channel 2, enter that program and channel in a row. Use the pedal's documented numbering convention when translating its display into MIDI values.
Send messages from a song utility
In an empty song slot, tap Add Preset, switch the picker to Utilities, then choose Create MIDI Utility. Name the utility, add and test its message rows, and save it. Assign it to the song slot and save the song as well.
MIDI utility editor for creating a named set of messages
A MIDI utility gives a footswitch its own command sequence. It is useful for an external pedal function that you want to trigger independently of your sound presets.
Clock, synchronisation and MIDI thru
Open the Preset Editor's MIDI → Clock page.
To send clock, select Send Clock, set Output tempo between 20 and 360 BPM, and tap Start. Use Update to change a running clock and Stop to stop it. The output uses standard MIDI clock at 24 pulses per quarter note. Configure the receiving pedal to follow external MIDI clock.
To follow another device, connect its MIDI OUT to Artemis MIDI IN and select Receive Clock. Check for a detected BPM and Clock locked. Waiting for MIDI clock means no usable clock has been detected.
An effect follows the clock only when an eligible tempo parameter is assigned to it. Open the effect's focus view, select its tempo control, choose Clock in the assignment panel, and select a subdivision. Only subdivisions within the parameter's supported range are available. Save the preset to keep the assignment. A manual tempo or expression assignment is a different source; receiving clock does not automatically synchronise every effect.
For forwarding, select Thru as the MIDI input mode. Artemis can still act on its mapped incoming commands in this mode. Use one clock source in the chain and avoid a cable route that sends Artemis's output back to its own input; a MIDI loop can repeat commands or clock pulses.
MIDI troubleshooting
| Symptom | What to check |
|---|---|
| No response | Confirm OUT-to-IN wiring, input mode, matching channels and the command in the live receive map. Test a single message. |
| The adjacent program loads | Check whether the controller displays programs as 0–127 or 1–128. |
| The wrong library item loads | Reopen the map and copy both the CC number and value for the intended item. |
| A footswitch remains logically held | Send its matching release PC after a simulated press. For simple preset selection, use PC 1–5. |
| Unexpected parameter movement | Check expression assignments, including EXP BT if configured, and whether the controller sends CC 0. |
| Duplicate commands or unstable tempo | Check Thru settings, remove circular routes and stop competing clock sources. |
| Clock arrives but an effect does not follow | Assign Clock to that effect's eligible tempo control and check its subdivision. |
Use the Send table's arrows to test outgoing messages individually, the receive map to verify incoming addresses, and the Clock page to check tempo reception. The MIDI implementation reference lists the supported command ranges.
User manual
Digital Effects
Using effects and models
A virtual block contains a chain of digital pedals followed by optional amp and cab stages. Place the block in the main route, then open it to add and edit its contents. Follow Your first preset for the effect-library and editing walkthrough.
NAM captures are downloaded models that you can load into those virtual chains. Amp captures appear under Amps → NAM, while pedal captures appear under Pedals → Neural. Downloading a capture adds it to the library; you still need to select it in a virtual block and save the preset that uses it.
Downloading NAMs from TONE3000
Use Launchpad's website browser to download NAM captures directly onto Artemis. Connect to Wi-Fi before starting. If you are working in Houston, save your preset first, then use Return to Launchpad in the Home pop-up.
1. Open TONE3000
In Launchpad, select Websites, find Tone 3000, and tap Open.
Launchpad Websites tab showing the Tone 3000 NAM finder and Open button
Browse or search for a capture, then open its tone page. Check the description and capture type so you know whether you are downloading an amp, an amp with a cab, or a pedal. The illustrated Marshall tone is labelled Amp + Cab Capture.
2. Download a tone
Tap Download Tone on the tone's page. If a further choice is offered, choose Just download tone to download the capture to Artemis.
TONE3000 tone page showing an Amp plus Cab NAM capture and the Download Tone button
Wait for the browser's download indicator to finish. The example below shows the download still in progress at 99%; let it complete before leaving the browser.
Browser download progress for the Marshall tone, still at 99 percent
You can download pedal captures in the same way. The example below is a Boss SD-1 Super Overdrive pedal capture with multiple files in the download.
TONE3000 Boss SD-1 Super Overdrive pedal capture with a Download Tone button
3. Check the NAM library
Return to Launchpad and open NAM → Manage library to browse downloaded captures. The NAM page also offers Import over USB for a guided transfer from a computer.
Launchpad NAM tab with Import over USB and Manage library options
Use Find a capture to search the library. The pencil beside a capture lets you rename it; Delete removes selected captures. A downloaded bundle may contain several capture files, so you may see multiple entries from one tone.
NAM library containing downloaded pedal and amp captures, including entries marked Awaiting import
Entries marked Awaiting import are imported automatically when Houston opens. For these website downloads, you do not need to start the USB import workflow. Return to Apps and launch Houston, then select the capture in a virtual block as described below.
Using NAMs in a preset
Loading an amp capture
- Open your preset and tap the virtual block where you want the amp.
- Tap Add amp, or open the virtual editor's library drawer and choose Amps.
- Select NAM to show the imported amp captures, then choose the one you want to use.
- Tap the amp card in the chain to open its controls.
Virtual Loop 1 library showing Amps and NAM selected with an imported Fender capture available
The focus view shows the capture name, variant controls, Input Gain and Output Gain. Use Input Gain to adjust the signal feeding the model and Output Gain to balance its resulting level. Compare the sound while playing, then use the back arrow to return to the chain.
NAM amp focus view with a single variant, Input Gain, Output Gain and bypass control
The example shows Variant 1 / 1, so that capture has only one available variant. When a capture contains several variants, use the arrows beside the variant name to choose between them.
Check whether the chosen capture already includes a cabinet before adding a cab stage. The downloaded Marshall example is an Amp + Cab Capture; the Fender capture listed in the library is labelled CAB FREE. Choose the cab stage to suit the capture and your output setup.
Loading a pedal capture
Open a pedal position in the virtual chain, then select Pedals → Neural in the library drawer. Choose the imported pedal capture, place it in the chain, and tap it to edit its controls just as you would another virtual pedal.
Virtual pedal library with Neural selected and an imported Boss SD-1 capture available
A NAM pedal occupies a virtual pedal position. Its position relative to the other digital pedals and the amp determines where it processes the signal.
Save and check the sound
After choosing your captures and adjusting their levels, return to the main Preset Editor and accept the save prompt when leaving. Recall the preset again to check that the model selection and settings are retained. The downloaded capture and the preset that uses it are separate items: keep the capture available in the NAM library for presets that depend on it.
Importing NAMs and IRs over USB
Use a computer to add captures or cabinet impulse responses you already own.
- Save your Houston work and return to Launchpad.
- Open NAM or IR, then choose Import over USB.
- Connect Artemis to the computer with a USB data cable and enable transfer when prompted.
- On the ARTEMIS drive, copy NAM captures into Imports/NAM, or impulse responses into Imports/IR.
- Wait for the copy to finish. Safely eject the drive on the computer, then finish USB transfer in Launchpad.
- Check Manage library in the NAM or IR tab. Newly copied files may say Awaiting import.
- Open Houston to import the files automatically, then select the capture or IR in your virtual block and save the preset.
NAM imports use .nam files. The IR importer accepts .wav, .wave, .aif, .aiff and .flac files; use actual impulse responses rather than ordinary music files. A recognised file extension does not guarantee that a model or file is valid. If a file fails to load, keep its original download and report the model/file details to support.
For an IR, open the virtual block's Cabs library and choose the imported response. An amp capture that already includes a cabinet may not need another cab stage; compare the sound with that stage bypassed.
In Launchpad's Manage library, search for a file and use its rename or delete control. Deletion is permanent. The dialog lists known presets using that file and asks for confirmation where applicable. Renaming changes the path and may require you to select the file again in those presets; deleting it requires a replacement. Keep an archive before reorganising a library used by performance presets.
Levels and processing limits
Set levels in signal order: the instrument and external pedals first, then the virtual-block input, effect/amp levels, virtual-block master and final bus mix. Play your strongest notes while adjusting. Leave headroom instead of setting every stage to its maximum.
A digital clip indication means a monitored signal has reached its limit. Reduce the level feeding that stage; turning down a later master cannot undo distortion already introduced upstream. Intentional drive or NAM saturation is part of the effect, but harsh distortion on a clean preset is a reason to check the gain structure.
When mixing analogue and processed paths, match their perceived levels with the mixer. Two copies of the same signal can become louder when combined, so recheck the final output after adding Bus B. Save the balanced levels with the preset.
Each virtual block has up to five pedal positions plus its amp and cab stages. This layout limit does not guarantee that every combination of models has the same processing cost. Complex captures and chains require more processing. If a preset produces clicks, dropouts or loading errors, return to a simple working preset, remove unused stages and add effects back one at a time. Try a less demanding capture if the problem appears with a particular NAM. Give support the exact model files and preset if it persists.
Digital processing also introduces latency. Mixing a direct analogue signal with a delayed copy can produce a thin or hollow sound. Compare each bus alone, then together. Bus B polarity inversion may improve the combination, but it does not remove the timing difference. If neither polarity sounds right, use a serial route or avoid blending that direct and processed pair.
Effect reference
See the Digital Effects Reference for the available pedal families, their controls and practical starting points, plus guidance for amp, NAM and cab stages.
Common control names mean the following:
| Control | What it changes |
|---|---|
| Drive, Fuzz, Sustain | The amount or character of distortion/sustain; behaviour depends on the model. |
| Input, Input Gain | Level entering an effect or model. It can change how a drive or NAM responds. |
| Level, Volume, Output, Master | Level at the named stage. Use it to balance the processed sound with bypass. |
| Mix | Balance between dry and processed sound. |
| Dry / Wet | Separate levels for the unprocessed and processed signals. |
| Tone, Bass, Middle, Treble | Tonal balance; start near the middle of the control's travel and adjust by ear. |
| BPM | Tempo for supported delay or modulation effects. Select it to configure manual tempo, expression or clock where offered. |
| Feedback | How much processed signal feeds back into the effect. High values can build up strongly. |
| Depth | Strength of a modulation sweep. |
| Attack / Release | How quickly a dynamics effect responds and recovers. |
| Threshold | Signal level at which a dynamics process begins to act. |
| Highpass / Lowpass | Remove frequencies below / above the selected cutoff. |
Control scales differ between effects. Use the values and units shown in the focus view rather than transferring the same number between unrelated models. Save the preset after editing.
User manual
Maintenance and Troubleshooting
Updates
For the recommended update method, see Wi-Fi Updates. To transfer an update from your computer, follow the USB instructions below.
Open Power in Launchpad to find its Version and Build identifier. Include both in a support request, together with the ArtemisOS release or update bundle you installed. Application version labels and the ArtemisOS release number are separate.
Keep the DC supply connected throughout installation. After a system update restarts Artemis, complete the matching firmware update if Launchpad prompts for it.
If an update fails, open View update, record the error details and use Reattempt update after resolving the reported problem. A failed firmware stage offers Retry Firmware Flash; a required stage offers Complete Firmware Update. Follow the displayed sequence and restart when requested.
If Launchpad reports a recovery after an interrupted update, read the recovery message before attempting the update again. If Artemis cannot return to Launchpad, or the same failure repeats, contact support with the bundle name and error details. Factory Reset removes user data; it is not a system-update repair procedure.
USB Updates
-
Download the latest ArtemisOS update bundle to your PC or Mac from trinity-labs.co.uk/downloads.
-
Connect Artemis to your computer using a USB cable. Open the Updates tab in Launchpad, select USB, and start the guided wizard.
USB update page in Launchpad
-
If prompted, delete a previously cached update bundle to make space for the new one.
Remove a cached update bundle
-
Enable the USB connection when prompted. The ARTEMIS drive will appear on your computer.
Enable the USB connection
-
Copy the downloaded update bundle into the Updates folder on the ARTEMIS drive (
ARTEMIS/Updates). Wait for the copy to finish.Copy the update bundle to the Updates folder
-
Safely eject the ARTEMIS drive from your computer, then continue in the wizard.
Safely eject the ARTEMIS drive
-
Follow the remaining prompts to install the update.
Finish the wizard and install the update
-
When installation is complete, reboot Artemis when prompted. Complete the matching firmware update if Launchpad requests it, following any further restart prompts.
Backups and recovery
Launchpad's Storage tab provides Archive, Restore and Factory Reset. Save your work and return from Houston before using these controls. Finish any active USB transfer first so Artemis owns the storage.
Create and copy a backup
- Open Storage → Archive.
- Enter a recognisable Backup name, such as a date and tour or project name.
- Tap Create Archive and wait for the success message.
- Enable USB transfer and connect the computer.
- Copy the ZIP archive whose name begins artemis-houston- from the root of the ARTEMIS drive to the computer.
- Safely eject the drive and finish USB transfer in Launchpad.
The archive contains Houston's stored application data, including presets, songs, setlists, pedalboard data, imported NAM/IR libraries and application state stored with that data. It is a user-data backup, not an image of the operating system.
The separate USB transfer area is not included. Copy Recordings, other samples, pending Imports, downloads and any other files you want to keep from that drive separately. Keep the archive on another device; a copy stored only on Artemis cannot protect against loss of the unit.
Restore a backup
Restore replaces the current Houston user data with the selected archive. Create a new archive first if you want to keep the current state.
- Copy an unmodified Artemis backup ZIP to the root of the ARTEMIS drive over USB. Keep its original archive filename.
- Safely eject the drive and finish transfer in Launchpad.
- Open Storage → Restore and select the archive.
- Confirm with Restore Archive and wait for completion.
- Reopen Houston and check your pedalboard, presets, songs and setlists before playing.
A restore replaces Houston data; it does not restore separately copied recordings or pending import files. Transfer those back separately when needed.
Factory reset
Factory Reset permanently deletes Houston's stored user data, including its sound libraries and saved performance arrangements. It also clears application state stored in that data area. It does not reinstall ArtemisOS or erase the separate USB transfer area.
Create an archive and copy it off the device first. Then open Storage → Factory Reset, read the warning and confirm Factory Reset. Wait for completion, reopen Houston and set up your pedalboard again, or restore a saved archive.
Troubleshooting
Start with a low listening level and change one thing at a time. If a simple working preset passes audio, add the rest of the route back gradually to isolate the problem.
| Symptom | Checks and resolution |
|---|---|
| No sound | Check DC power, instrument and output cables, then test the instrument directly into the amplifier. In Artemis, select the connected input, bypass unused loops, check the output choice and clear mixer/global mute. Raise levels gradually. An enabled loop needs a working send-to-pedal-to-return connection. |
| One side of a stereo setup is silent | Check OUT L/R cables, both stereo pedal inputs/outputs and both L6/L7 returns. Check both output selectors and the bus levels. Bypass the stereo loop to help isolate its wiring. |
| Distortion or an unexpected volume change | Compare a simple clean preset, reduce the level feeding the distorted stage and check clip indications. Review pedal outputs, virtual inputs/masters, bus mix, pads and expression assignments. |
| Thin or hollow sound when mixing buses | Listen to each bus alone. Compare Bus B polarity, then consider the timing difference between analogue and digital paths. Try a serial route if the blend remains poor. |
| Hum or noise | Test a short instrument-to-Artemis-to-amplifier route, then reconnect pedals one at a time. Check patch cables and pedal supplies. Do not remove protective mains earth connections. |
| Footswitch does not perform the expected action | Check the current page, Invert Menu/Stompbox state and configured normal/hold actions. A utility slot performs its utility instead of selecting a sound. |
| Expression pedal does not respond | Check the TRS connection, selected EXP source, enabled state, In meter and Min/Max calibration. Then check the active preset's parameter assignment and range. |
| MIDI does not respond | Check OUT-to-IN cable direction, Receive/Thru mode, channel and the live map. Use the MIDI troubleshooting table to isolate numbering, clock and duplicate-message problems. |
| The ARTEMIS drive does not appear | Use a USB data cable, keep DC power connected and enable transfer in Launchpad. Try another computer port or cable. After use, eject on the computer and finish transfer on Artemis. |
| A downloaded NAM or IR is missing | Complete the download or copy, finish USB transfer, check Manage library, then open Houston to import it. Check the file format and any import error. |
| A preset reports a missing model | A referenced file may have been renamed or deleted. Select an available replacement and save, or restore the required library from your backup. |
| Changes disappear after switching presets | Accept the Preset Editor or mixer save prompt for sound changes. Save the song for slot assignments. Wait for the setlist's saved status. Stompbox state is independent of song presets. |
| Clicks or dropouts with a complex sound | Compare a simpler preset, reduce processing stages and test captures individually. Report persistent problems with the affected preset and model details. |
Getting support
Email contact@trinity-labs.co.uk or raise a support ticket.
Include your Artemis hardware revision and software version, a description or photograph of the wiring, the preset or song involved, and the steps that reproduce the issue. Add any on-screen error message and relevant screenshots. For an update problem, include the update bundle name and the last step that completed successfully.
User manual
Reference
Specifications
Mechanical
| Item | Specification |
|---|---|
| Dimensions (W × D × H) | Approx. 25.5 × 14.5 × 5.5 cm (10.0 × 5.7 × 2.2 in) |
| Mass | Approx. 1.4 kg (3 lb) |
| Enclosure | 2.5 mm bead-blasted, anodised aluminium |
| Side panels | 5 mm solid walnut |
Power, processing and controls
| Item | Specification |
|---|---|
| Power supply | 12 V DC, 2 A, centre-positive, 2.1 mm barrel connector; power supply included |
| Processor | Raspberry Pi Compute Module 5; 2.4 GHz quad-core Arm Cortex-A76 |
| Display | 6.25-inch touchscreen |
| Footswitches | 5 momentary footswitches |
| Indicators | 5 individually addressable RGB LEDs |
| Power control | Power button |
| MIDI | 5-pin DIN MIDI IN and MIDI OUT; optically isolated MIDI input |
| USB | USB-C, device mode only; Artemis requires its DC power supply |
| Expression inputs | 2 × 6.35 mm (1/4-inch) TRS expression pedal inputs |
| Control outputs | 2 × 6.35 mm (1/4-inch) TS isolated relay-contact outputs for amplifier switching or footswitch emulation |
Audio and routing
| Item | Specification |
|---|---|
| Audio inputs | 2 independent inputs for stereo or dual-mono operation |
| Audio connectors | 6.35 mm (1/4-inch) TS, unbalanced; each loop channel has separate send and return sockets |
| Input routing | Either input can feed either bus; one input can also feed both buses |
| Signal paths | 2 analogue buses: Bus A and Bus B |
| Reorderable loops | 5 mono loops (L1–L5), with relay-switched true bypass |
| Loop assignment | L1–L3 assignable to Bus A or Bus B; L4–L5 on Bus A only |
| Fixed stereo loop | L6/L7 form the left/right channels of the final stereo loop, with relay-switched true bypass |
| Audio outputs | 2 outputs for stereo or dual-mono operation |
| Mixer | 2-channel analogue mixer for blending Bus A and Bus B |
| Input buffers | Switchable buffers with a shared bypass control |
| Output pads | Selectable nominal −6 dB pads on both bus outputs, before the mixer |
| Polarity control | Selectable polarity inversion on Bus B |
| Virtual blocks | 2 mono DSP blocks (V1 and V2), each independently bypassable or assignable to a Pre, Mid or Post position on either bus |
Virtual block positions
| Position | Bus A | Bus B |
|---|---|---|
| Pre | Before slot 1 | Before slot 1 |
| Mid | After slot 2, before slot 3 | After slot 1, before slot 2 |
| Post | After slot 5 | After slot 3 |
Slots are positions in the reordered chain, not fixed loop numbers. Bypassed loops still occupy their slots. Both Post positions are before the output bus swap and final stereo loop.
V1 and V2 can use the same position or different positions on either bus. When both use the same position, the signal passes through V1 followed by V2. Bypassing a virtual block keeps the signal on its analogue through-path.
Digital audio and switching performance
| Item | Specification |
|---|---|
| Sample rate | 48 kHz |
| Digital audio word length | 32-bit |
| Virtual-block latency | Digital processing adds latency; account for it when mixing parallel paths. |
| Preset switching | Transition time depends on the routing, effects and models being recalled. Test your performance presets together. |
Round-trip latency describes audio passing through a virtual block. Preset switching time describes the transition between presets and is a separate measurement.
MIDI implementation
PC and CC numbers below use 0–127. Channel messages use the receive channel selected in Preferences (1–16). Clock is a MIDI system message and does not use a channel. Enable Receive or Thru for mapped input control.
Program Change messages
| PC number | Action |
|---|---|
| 0 | Toggle tuner. |
| 1–5 | Select Jam preset slot 1–5. |
| 6–10 | Simulate pressing footswitch 1–5. |
| 11–15 | Simulate releasing footswitch 1–5. Pair each with its corresponding press. |
| 123 | Open the Jam Page. |
| 124 | Open the active preset in the Preset Editor. |
| 125 | Open the Home/settings carousel. |
| 126 | Open the mixer. |
| 127 | Save on the current page, where supported. |
Control Change messages
| CC number | Value | Action |
|---|---|---|
| 0 | 0–127 | Drive the EXP BT expression source. It affects parameters assigned to that source; it is not a general “currently selected knob” command. |
| 1–60 | 0–127 | Recall a library preset using the live map: up to 7,680 addresses. |
| 61–121 | 0–127 | Recall a song using the live map: up to 7,808 addresses. |
| 122 | 0–127 | Recall a setlist using the live map: up to 128 addresses. |
| 123 | 0 | Toggle recorder. |
| 123 | 1–5 | Remove the preset assignment from Jam slot 1–5. Save the song if you intend to keep the change. |
| 123 | 6–10 | Put the active preset into Jam slot 1–5. Save the song to keep it. |
| 124 | 0 | Toggle global loop bypass in the editor. |
| 124 | 1–7 | Toggle physical loop L1–L7 bypass in the editor. |
| 124 | 8 / 9 | Toggle Virtual 1 / Virtual 2 bypass in the editor. |
| 124 | 11 / 12 | Toggle Virtual 1 amp NAM / IR bypass. |
| 124 | 14 / 15 | Toggle Virtual 2 amp NAM / IR bypass. |
| 127 | 0 | Request Bluetooth MIDI map synchronisation. |
| 127 | 126 / 127 | Bluetooth MIDI heartbeat / acknowledgement; reserved for the connection protocol. |
Editor commands require the relevant editor to be open. Unlisted values have no documented performance action. Library address capacity is not a promise about storage space; available space depends on your files.
The live map is the authority for each saved item's address. Outgoing preset and utility messages support PC and CC with a destination channel, number and, for CC, value. See Clock, synchronisation and MIDI thru for clock and forwarding setup.
Compatibility
| Connection or file | Requirement |
|---|---|
| Audio | Unbalanced TS connections. Use the labelled send and return for each loop channel. |
| Expression | TRS expression connection, calibrated in Expression / Control. Ask support about model-specific wiring and electrical compatibility. |
| CTRL | Isolated TS relay contacts for compatible amplifier/footswitch switching inputs. Ask support about the amplifier's switching requirements if uncertain. |
| USB | A computer USB host and a data-capable cable; Artemis remains powered by its DC supply. Use the Launchpad transfer guides. |
| MIDI | Standard 5-pin DIN connections for the wired procedures in this manual, with matching channels and message numbers. |
| NAM | Valid .nam captures. Model complexity affects processing demand. |
| IR | Impulse responses in .wav, .wave, .aif, .aiff or .flac format. |
The pedals shown in the walkthrough illustrate loop setup. Their inclusion is not a compatibility list for unrelated expression or amplifier-control connections. Contact support with the exact device model when checking those connections.
Glossary
| Term | Meaning |
|---|---|
| Loop | A send/return connection that inserts an external effect into the signal path. |
| Send / return | The send feeds the effect's input; the return receives its output. |
| Bus | One of Artemis's two signal paths, Bus A or Bus B. |
| Slot | A position in an effects chain or song layout. Its meaning depends on the page; a preset slot position is not a rear-panel loop number. |
| Virtual block / virtual loop | One of the two digital processing chains that can be placed within a bus. |
| Preset | A saved sound containing routing, effect and associated control settings. |
| Song | A five-slot performance layout containing presets or utility actions. |
| Setlist | Songs arranged in performance order. |
| Bypass | Skip an effect or processing block while allowing the signal to continue. |
| Dry / wet | Dry is the unprocessed signal; wet is the processed signal. |
| Polarity | The positive/negative orientation of a signal. Reversing one path's polarity changes how it combines with another path. |
| NAM | Neural Amp Modeler; a captured model of an amplifier or pedal loaded into a virtual chain. |
| IR | Impulse response; a file used to reproduce a linear response, such as a cabinet and microphone response. |
| MIDI PC / CC | Program Change and Control Change messages used to recall sounds or control functions. |
| TS / TRS | Tip-sleeve and tip-ring-sleeve jack connections. Artemis's audio connections use TS; expression inputs use TRS. |
Digital effects reference
Digital Effects Reference
ArtemisOS / Houston v1.0.0
Open a virtual block, choose an effect from the drawer and open its focus view to edit it. This reference covers the pedal choices exposed by the editor, followed by the amp and cab stages. Imported captures add their own entries to your library.
The starting points below are suggestions to try by ear, not factory presets. Begin at a low listening level, compare with bypass, and adjust the effect's output to avoid a loudness jump. “Low” and “mid” refer to the control's displayed range. Use the units shown on screen; similarly named controls can have different scales.
Save the preset after editing. For expression ranges and tempo sources, see expression assignment and MIDI clock.
Digital effects reference
Boost
Boosts can raise level, change tonal emphasis or push a following drive harder. Put a boost before a drive for more saturation; try it after the drive when you primarily want more volume.
| Effect | Controls | Starting point |
|---|---|---|
| Gain | Gain | Use a small increase for a solo lift, then check headroom in the following stage. |
| Linear Power Booster | Boost | Start low and increase until the next drive responds more strongly. |
| Vintage Bass Booster I | Volume, Mix | Try a low Mix for added low-frequency weight, then match Volume to bypass. |
| Vintage Bass Booster II | Boost, Mix | Add a little Mix and raise Boost gradually for a fuller sound. |
| High Freq Booster I | Level | Start low for extra brightness ahead of a dark drive sound. |
| High Freq Booster II | Intensity, Volume | Keep Intensity low initially, then balance Volume after choosing the emphasis. |
| Rangefinder | Boost, Mix | Try a moderate Boost and restrained Mix into an overdriven amp stage. |
Digital effects reference
Compression and gating
Dynamics effects respond to playing level. Adjust them while playing both quiet and strong notes. Threshold depends on the signal feeding the effect, so a setting that works with one guitar may need changing for another.
| Effect | Purpose and controls | Starting point |
|---|---|---|
| Compressor | Reduces level differences. Attack, Knee, Ratio, Release and Threshold determine when and how strongly it acts. | Use a gentle Ratio, then lower Threshold until strong notes are controlled without losing all their attack. |
| Expander | Increases the difference between quiet and loud signals. Attack, Knee, Ratio, Release and Threshold control the response. | Set Threshold just above the unwanted low-level sound and use a gentle Ratio to retain natural note endings. |
| Noise Gate | Attenuates the signal below Threshold. Attack, Hold and Decay shape opening and closing; Range sets attenuation. | Raise Threshold until idle noise is reduced, then lengthen Hold or Decay if sustained notes end abruptly. |
Digital effects reference
Delay
BPM controls the repeat rate for these effects. Where offered, select it to choose a manual tempo, expression source or MIDI Clock and subdivision. Higher feedback can build into a loud sustained sound; raise it gradually.
| Effect | Purpose and controls | Starting point |
|---|---|---|
| Delay | Simple tempo-based delay with BPM and Gain. | Set a tempo that fits the song and keep Gain low for an understated repeat. |
| Digital Delay | Repeats with BPM, Feedback, Highpass, Lowpass and Level. | Use low Feedback and Level, then narrow the repeat's frequency range with the filters so it sits behind the dry notes. |
| Duck Delay | Delay that responds to playing dynamics. Attack, Release and Amount control the ducking response; BPM and Feedback shape the repeats. | Start with low Feedback, then adjust Amount so repeats sit back while you play and emerge between phrases. |
| Echo | Tempo-based echo with BPM and Percent. | Start with a low Percent and adjust while playing short phrases to hear the echo clearly. |
| Reverse Delay | Reversed delay texture with Mix, Feedback, BPM and Window. | Use low Feedback and a modest Mix. Adjust Window while listening for the length and character of the reversed fragments. |
Digital effects reference
Drive and distortion
The effects below provide different clipping and tone-control arrangements. Model names help identify the choice in the drawer; they do not promise an exact match to every revision of a physical pedal.
| Effect | Controls | Starting point |
|---|---|---|
| TLA800 Preamp | Volume | Begin low and raise Volume while checking the following amp or output stage. |
| A-Clipper | Drive, Level, Tone | Start with low Drive and central Tone; use Level to match bypass. |
| B-Boom | Drive, Gain | Raise Drive gradually, then balance Gain against the bypassed sound. |
| Astrofuzz | Attack, Tone, Volume | Try low Attack, central Tone and a matched Volume for a restrained starting texture. |
| Bit-Crusher | Bit Down, Downsampling, Gain, Level | Begin with mild bit/sample reduction and low Gain; increase one reduction control at a time. |
| Cover-D | Bass, Treble, Volume, Mix | Start with a modest Mix and central tone controls, then balance Volume. |
| Trinity Screamer | Drive, Level, Tone | Use low Drive, central Tone and a slight Level lift ahead of an amp stage. |
| CST-BT1 | Attack, Level, Tone, Mix | Keep Mix modest while exploring Attack, then adjust Tone and Level. |
| Distortion MK2 | High Freq, Freq, Gain, Mix | Start with low Gain and Mix; tune the two frequency controls to place the distortion in the mix. |
| El-Distortion | Drive | Raise Drive from low until the desired saturation appears; balance the surrounding chain's level. |
| Distortion Plus | Volume, Drive | Choose a moderate Drive and set Volume to match bypass. |
| Thick Distortion | Gain, Thickness, Volume | Start with low Gain and Thickness, increase Thickness by ear, then balance Volume. |
Digital effects reference
Fuzz
Fuzz settings can change both sustain and the shape of note endings. Start at a restrained output level and check chords as well as single notes.
| Effect | Controls | Starting point |
|---|---|---|
| Axface | Attack, Level, Smooth | Start with moderate Attack and Smooth, then match Level. |
| B-Fuzz | Drive, Level, Thickness, Mix | Keep Thickness and Mix low while choosing the Drive amount. |
| Fuzz Freak | Fuzz, Gate, Level, Tone, Mix | Start with low Gate so notes sustain; add Gate for a more abrupt ending. |
| Foxey Lady | Fuzz, Level | Choose moderate Fuzz and match Level to bypass. |
| Fuzz Master | Level, Tone, Mix | Start with low Mix and central Tone, then increase the blend. |
| Fuzz Drive | Distortion, Level, Mix | Use a low Distortion setting and modest Mix for a blended texture. |
| Fuzz | Fuzz, Level | Raise Fuzz gradually and use Level to maintain a consistent output. |
| Fuzz-FM | Drive, Fuzz, Input, Level | Keep Input and Drive restrained while exploring Fuzz, then balance Level. |
| Fuzz-R | Fuzz, Level | Start with moderate Fuzz and compare the response to the other fuzz choices. |
| Ruiner | Intensity, Level, Mix | Begin with low Intensity and Mix, then increase one at a time. |
| Sustainer | Sustain, Volume | Raise Sustain until held notes last as wanted, then match Volume. |
Digital effects reference
EQ and filters
Use EQ to make a sound fit the instrument and listening system. Cutting a troublesome band often leaves more headroom than boosting other bands around it.
| Effect | Purpose and controls | Starting point |
|---|---|---|
| Low/High Pass Filter | Frequency filtering with two High Freq and two Low Freq controls in separate positions. | Adjust one cutoff at a time while listening for the part of the spectrum it removes. Keep other controls unchanged until its action is clear. |
| Baxandall | Broad Bass and Treble shaping. | Begin near the middle of each displayed range; adjust one control at a time. |
| Bi-Quad Filter | Frequency-focused filtering with Freq. | Sweep Freq slowly while playing to find a useful emphasis or cut. |
| 4-Band EQ | Four level bands with individual Bandwidth controls. The displayed level labels include Low Cut, Level 2, Level 3 and High Cut. | Start the level bands at neutral, make a small cut in one band and adjust its width. |
| 11-Band Graphic EQ | Frequency-band levels from the low end through 16k, with Low Cut and High Cut labels at the ends. | Start flat and make a small cut in the band nearest an unwanted resonance. |
| 11-Band Parametric EQ | Band levels plus Q controls that adjust band width/selectivity. | Start with a small level adjustment and a broad band; narrow it only when targeting a specific resonance. |
Some labels repeat or abbreviate the affected band. Use the control's position and displayed value to distinguish it, and compare with bypass after each change.
Digital effects reference
Pitch
Pitch effects work best when the input notes are clear. Test tracking with the instrument, register and playing style you will use.
| Effect | Purpose and controls | Starting point |
|---|---|---|
| Pitch Shift | One shifted voice with Detune, Dry and Wet. | Use a small Detune and a low Wet level alongside Dry for a subtle doubled sound. |
| Dual Pitch | Two voices with Voice 1, Voice 2, V1 Level, V2 Level and Dry. | Choose small opposing shifts and keep both voice levels below Dry. |
| Harmoniser | A scale-aware voice using Tonic, Mode, Interval, Wet and Dry. | Set the song's tonic and mode first, choose the desired interval and keep Wet modest while testing the melody. |
| Dual Harmoniser | Two scale-aware intervals with Tonic, Mode, Voice 1 Interval, Voice 2 Interval, Voice Mix and Dry. | Set the key/mode, choose the two intervals and blend the voices beneath Dry. |
An incorrect tonic or mode can create unwanted harmony notes even when tracking is working. Check the song's key changes before using the same harmony throughout.
Digital effects reference
Modulation
BPM sets the rate of tempo-based modulation. Depth and Mix determine how prominent the movement is. Where the control offers Clock assignment, save that assignment with the preset to follow an external tempo.
| Effect | Purpose and controls | Starting point |
|---|---|---|
| Mono Chorus | Chorus with BPM, Level and Mix. | Use a slow rate and low Mix, then balance Level for gentle movement. |
| Mono Flanger | Sweeping flanger with Depth, BPM and Mix. | Try a slow rate and shallow Depth before increasing Mix. |
| Mono Flanger Plus | Flanging with Depth, Feedback, BPM, Mix, Wet and Width. | Begin with low Feedback, moderate Width and a restrained wet blend. |
| Mono Phaser | Phase sweep with Depth, BPM and Mix. | Use a slow rate and moderate Depth for a gradual sweep. |
| Ring Modulator | Frequency multiplication texture with Mix and Freq. | Keep Mix low while sweeping Freq to find a useful metallic texture. |
| Tremolo | Level modulation with Depth, BPM and Mix. | Set a song-related rate, then raise Depth until the pulse is clear without fully cutting the notes. |
| Mono Vintage Vibe | Modulation with Depth, Feedback, BPM, Mix and Width. | Start with slow BPM, low Feedback and a modest Mix. |
The virtual blocks are mono. An effect's Width control does not turn the block into a stereo send/return path; use the final physical stereo loop for a stereo pedal.
Digital effects reference
Wah
Assign a sweep parameter to an expression pedal for foot control. Set a usable Minimum/Maximum range and check both ends of the travel.
| Effect | Controls | Starting point |
|---|---|---|
| TLA95 | Volume, Hotpotz | Assign Hotpotz to expression, then narrow its range if either end is too extreme. |
| Classic wah | Level, Wah, Mix | Assign Wah to expression and begin with a moderate Mix. |
| Fuzz wah | Fuzz, Wah, BPM, Mix | Start with low Fuzz and Mix, then choose a rate/sweep that fits the part. |
| Wah | Wah, Freq, Mix | Choose the frequency region first, then assign Wah to expression and adjust Mix. |
Digital effects reference
Reverb
Freeverb provides Size, Damp and Mix. Size changes the space/decay character, Damp shapes the high-frequency decay, and Mix blends the result with the dry signal.
For a subtle space, begin with low Size and Mix, then raise Damp if the tail is too bright. For a larger sustained texture, increase Size gradually and check that the reverb does not mask the next phrase. Test preset transitions before relying on tails during performance.
Digital effects reference
Neural captures
NAM in the Neural pedal category uses a capture with input and output level controls. In the amp stage, the equivalent controls appear as Input Gain and Output Gain.
Start with the capture's initial levels, compare with bypass, and adjust output to balance the sound. Changing input gain changes the level driving the captured model and can change its saturation. It is not equivalent to adjusting an individual tone or gain knob on the original captured hardware.
A downloaded collection may offer different captures or variants. Choose the appropriate one, then save the preset. Keep the referenced file in the library. Follow TONE3000 downloads or USB import to add captures.
Digital effects reference
Amp and cab stages
The amp and cab positions follow the digital pedal chain inside each virtual block.
For a built-in amp, select a model from Amps, open its focus view and adjust the controls offered by that model. Start with restrained gain and broadly central tone settings, then balance its output. Different models expose different controls; selecting a named model is a starting point for your sound.
For a captured amp, use Amps → NAM. Decide whether the capture includes a cabinet: an amp-plus-cab capture often works without another cab stage, while an amp-only capture is commonly paired with a cab response for a full-range output.
Use Cabs for the cabinet stage and select the required model or imported IR. Compare the complete chain at its intended output:
- Into a full-range monitor or recording path, try an amp and cab together.
- Into a guitar amplifier and physical guitar cabinet, compare with the cab stage bypassed.
- For a captured pedal ahead of an amp, place the NAM in a pedal position under Pedals → Neural.
These are starting arrangements, not fixed rules. Avoid adding a second cabinet response accidentally, check the final level and save the preset once the complete route works.
About this edition
Sources & support
This printable edition contains the complete user manual and digital effects reference from the official Artemis documentation. The original table of contents is replaced by this edition’s contents.
Source revision: ecd27f84fe7fda23b92ecc8763c3e986e5172be6
Edition date: 26 October 2026
Software: ArtemisOS / Houston v1.0.0
README.md · User manual
EFFECTS.md · Digital effects reference
For updated guidance, visit trinity-labs.co.uk/help. For support, visit trinity-labs.co.uk/support.