steve-adminandClaude Sonnet 5
f4e5b9e20a
New tts/generate_sfx.py mirrors generate.py (MOSS-TTS) but for the MOSS-SoundEffect checkpoint: text-only ambience/SFX generation, no reference audio or voice cloning. Needed PYTORCH_ALLOC_CONF= expandable_segments:True baked in - this checkpoints weights alone use ~22.3GB of this boxs ~23.56GB usable VRAM, leaving generate() itself no room without it (confirmed via OOM otherwise). webui/app.py gets a new standalone "5. Sound effects" section in the Pipeline Studio tab (separate from the AuK/MOSS-TTS voice flow - this is a different generation primitive with no reference/history state). Verified end-to-end: three real test clips (door creak, market ambience, car pass) generated cleanly, approved by Steve as "definitely passable," then wired into the GUI and confirmed working through app.py itself. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01SN15Vxn4svKuhYxFsVtMJf
webui
A pipeline studio: strip a voice with demucs, edit it with AuK (emotion, pitch, speed, free-form instructions — with preview and undo/reset), then generate new speech in that voice with MOSS-TTS.
Why this exists
Manually chaining demucs → AuK → MOSS-TTS across three separate venvs (via SSH one-off scripts)
worked but made it slow to experiment — especially with AuK's pitch/emotion controls, where you
really want to preview a result and back out if it's wrong (see the pitch-overshoot findings in
auk/README.md) rather than committing to a specific edit blind.
Architecture
A single lightweight Gradio app (app.py) that shells out to each tool's own isolated venv
via subprocess, rather than merging their dependencies into one environment — MOSS-TTS pins
transformers==5.0.0, AuK needs 4.57.6; they can't coexist in one venv. This app's own venv
only needs gradio itself.
Each stage's output becomes the next stage's input by filesystem path; a history list backs
the undo/reset buttons in the voice editor.
Setup
python3 -m venv .venv && . .venv/bin/activate
pip install gradio
Assumes demucs/, auk/, and tts/ (siblings in this repo) already have their own working
venvs and, for auk/, downloaded model weights — see their READMEs.
Running
python3 app.py
Serves on 0.0.0.0:7860. The app automatically calls ComfyUI's /free endpoint (if its queue
is empty) before each heavy step, to reduce GPU contention on a shared box — see the DNS/routing
and GPU-contention notes earlier in this project's history for why that matters here.
Known limitations (inherited from the underlying tools)
- AuK's real usable clip length is ~25-30s, not several minutes — feeding it a long recording
will OOM even with
--cpu_offload(seeauk/README.md). This app doesn't chunk long inputs automatically; keep reference clips short. - AuK's pitch-editing instruction-following is unreliable — even "1 semitone" has measured out at ~4+ semitones of actual shift in testing. The UI surfaces a warning; preview before trusting a pitch edit.
- Each stage is a blocking subprocess call (model load + inference each time) — the UI will appear to hang for anywhere from ~10s to a couple of minutes per click, with no progress bar yet.
- No queueing/locking across browser tabs or concurrent users — this is a single-GPU box, so two simultaneous generations will contend for VRAM.