Level
Loudness of the looped audio.
- Turn up Loop plays back louder.
- Turn down Loop sits quieter under your live playing.
Pedals / Looper *(standalone only)*
Loop Station
Looper *(standalone only)*
seth — fish
seth@ninevolt:~$
Knobs
In the TUI each knob runs from low (left / 0%) to high (right / 100%). Start near noon, then nudge while you play.
Mix
Balance of live input versus loop playback.
- Turn up More loop in the blend.
- Turn down More live guitar relative to the loop.
Inspired by
Inspired by Boss RC-style loopers — record, overdub, playback layers in memory.
Signal path
| Step | What it does |
|---|---|
| Input | Raw mono sample; bypass copies it straight to output unchanged. |
| Looper mode | State machine (Idle, Recording, Playing, Overdubbing, Stopped) driven by footswitch commands. |
| Pass through | In Idle or Stopped, output equals input with no buffer interaction. |
| Write buffer monitor dry | In Recording, each sample is written to the ring buffer while output monitors dry input (loop not yet audible). |
| Read loop × Level + Mix | In Playing, reads the buffer at pos, scales by Level, blends with dry via Mix, advances position. |
| Play + mix input into buffer | In Overdubbing, same playback mix as Playing, but also adds new input into the buffer (×0.85, clamped) for layering. |
| Output | Final sample — dry pass-through, monitor, or loop blend depending on mode; clamped to ±1 in play/overdub. |
How we modeled it
Ring buffer stores several seconds of audio. Record arms capture; Overdub mixes new input; Playback level and Loops count managed in state machine.
Simplifications
- Single loop track in basic mode - No sync to tempo clock unless added externally