Audio Settings
Select the driver, input, output, sample rate and buffer size. Euclid presents the values accepted by the active device.
01 / First start
Begin with the signal path, not the plugins.
Euclid is a live host, not a timeline DAW. Start by making the physical audio path reliable, then build a rack for every important source or processing chain.
01
Choose the audio device.
Open View > Audio Settings, select the input and output device, sample rate and buffer.
02
Confirm live I/O.
Send a known source to the selected physical input and verify the input meter before creating a rack.
03
Scan once, then work from the cache.
Use Plugin Manager to scan AU, VST3, CLAP and the formats enabled in your build. Euclid stores the verified results.
04
Create a rack and patch it.
Assign its input and output before adding the first insert. A new rack is mono input and stereo output where the device supports it.
05
Save the session.
A session keeps racks, routing, plugin state, memories, cues, control mappings and plugin-window layouts together.
First rehearsal rule: scan and validate plugins before the day of the show. Build the session at the same sample rate and buffer size that you expect to use live.
02 / Audio system
Set latency from the real system, not from habit.
Performance bar
Watch sample rate, buffer, latency, DSP time, CPU load, XRUNs and overload warnings in the top performance area.
| Buffer | Use | Practical note |
|---|---|---|
| 32-64 | Very low-latency monitoring | Only use after testing the complete show session with headroom. |
| 128-256 | Most live plugin racks | Usually the best compromise between feel, CPU reserve and stability. |
| 512-2048 | Heavy processing or playback | Use when processing time approaches the buffer duration or XRUNs occur. |
When changing buffer or sample rate: wait for the device to come back online, confirm Live I/O, then test one rack before unmuting the whole show.
Safe start and panic
Safe Start can open a session with racks muted. PANIC sends MIDI safety messages and can temporarily mute racks, depending on the Live Safety preferences. It is a recovery control, not a substitute for correct routing.
03 / Racks and inserts
One rack is one intentional audio chain.
Every rack has independent I/O, trim, insert order, output fader, color, meter and live state. Use one rack per vocal, playback feed, utility chain or bus that needs independent recall.
Physical input->Input trim->Insert 1 ... 8->Rack fader->Physical output
Console
Create a rack from the Console right-click menu. Rename it, choose a color, set trim, I/O and fader from the channel strip.
Racks
Use the 19-inch rack view to add plugins by name, open their GUI, bypass, mute, remove or reorder their eight insert slots.
Connections
Use the connection view whenever the intended chain is not obvious. It is the definitive visual check for input, inserts and output.
Insert a plugin
- Select the target rack.
- Choose + Add or right-click an empty slot.
- Search by plugin name and select the desired format.
- Wait for the rack route to rebuild, then open the plugin GUI if you need to configure it.
- Confirm input and output meters before proceeding to the next insert.
Mono sources: choose one mono rack input for a mono source. Euclid can feed a compatible mono-to-stereo effect correctly, while keeping the rack output stereo where needed.
Failed plugin quarantine: Euclid can isolate a plugin after an instantiation failure. Clear it only in Audio Settings > Plugin Safety when you trust the plugin and are ready to rescan or retry it.
04 / Main views
Use the right view for the job.
| View | Use it for | Do not use it for |
|---|---|---|
| Console | Mixing racks, trim, fader, rack I/O, meters and selection. | Detailed insert surgery. |
| Racks | Insert order, slot operations and plugin GUI access. | Monitoring all channels at once. |
| Connections | Visual verification of audio and MIDI paths. | Fast show mixing. |
| Patch Bay | Advanced matrix-style routing work. | Everyday rack setup. |
| Euclid Mix | Automix status, reduction, voice confidence and spill comparison. | Editing plugin parameters. |
| Performance | Current/next cue, NEXT, panic and a compact live console. | Building complex sessions. |
Store a workspace or viewset once you have an efficient layout. Typical layouts are Console, Racks, Connections and Plugin Windows.
05 / Memories and cues
Memories store states. Cues make a show move.
Memory / snapshot
Stores the chosen parts of the current state: plugin settings, rack gains, routing, I/O, plugin order, tempo and view. Use filters so a recall changes only what you intend.
Cue
Launches a memory and can also change tempo, gain or mute, send MIDI Program Change or OSC, and trigger an audio cue.
01
Build the base sound.
Set the rack state and plugin parameters for a song or scene.
02
Store a memory.
Choose global, rack or plugin scope and only the recall filters you need.
03
Lock the approved state.
Lock final memories so an update or delete cannot happen by accident.
04
Build a cue list.
Name each cue by song and section, such as Intro, Verse, Chorus or Solo. Rehearse NEXT in order.
Recall fade: use a fade time when recalling gains during live playback. It keeps intentional level changes controlled instead of abrupt.
06 / Euclid Mix
Automix only the channels that need it.
Euclid Mix is adaptive per-rack gain management for multi-mic situations. It is not a group fader or send matrix. Enable it on the racks that share a practical attention problem, such as panel microphones, headsets or broadcast contributors.
Groups
Use G1-G4 to separate independent automix families. A panel and a presenter headset should not need to compete.
Modes
Panel, Podcast, Theatre, Broadcast and Music adapt the response to the context.
Priority
Use weight to favour the lead microphone without forcing every other channel closed.
In the Euclid Mix view, compare MAIN and MIX meters, reduction, voice confidence, spill and noise floor. Use this view to tune behaviour during rehearsal, then return to Console or Performance for the show.
07 / Control and plugin windows
Keep physical control simple and repeatable.
MIDI learn
Map MIDI CC, notes or Program Change to plugin parameters, rack power, snapshots, cues, Next Cue or Tap Tempo. Check device and channel in MIDI Mappings.
OSC
Cues can send OSC to external show-control systems. Check host, port and address during rehearsal.
Plugin windows
Store window positions per rack, song or workspace. Use Show plugins for current rack and Hide all to avoid a desktop full of stale windows.
Performance fullscreen
Use it for current/next cue, large NEXT, panic, tempo, CPU, XRUNs, latency and compact channel meters.
08 / Show workflow
A repeatable pre-show routine.
1. Device: open Audio Settings, select the intended interface and confirm sample rate and buffer.
2. Signal: verify physical inputs and outputs with the Live I/O meters.
3. Racks: confirm power, mute, trim, fader and I/O per channel in Console.
4. Inserts: use Racks to confirm order and open only the plugin GUIs you need.
5. Routing: open Connections for any rack that has been edited, moved or imported.
6. Control: test Next Cue, panic and the critical MIDI/OSC mappings.
7. Save: save the session after final checks, then protect approved memories with Lock.
Do not scan or install plugins in a show window. A scan belongs to preparation. The show session should open from a known cache and a tested plugin set.
09 / Troubleshooting
Diagnose the path in order.
| Symptom | Check first | Then |
|---|---|---|
| No input in a rack | Console IN and physical device input. | Check channel count, input range, then Connections. |
| No output | Rack power, mute, fader and OUT selection. | Check output meter, device output and routing view. |
| Plugin will not load | Plugin format and Plugin Manager status. | Review Plugin Safety, clear quarantine only when appropriate, then retry. |
| Clicks, dropouts or overload | DSP time, CPU and XRUN count. | Close plugin GUIs, bypass heavy inserts, then raise buffer size. |
| Unexpected state recall | Memory filters and cue association. | Use Compare before Update and lock approved memories. |
| Plugin window is missing | Show plugins for current rack. | Hide all, recall its viewset or reset window positions. |
Sustained unwanted sound: mute the affected rack or use PANIC first. Then inspect Console, Connections and the performance indicators before continuing.