CancelWatcher accumulates raw PCM from the VAD LevelMeter (via new
on_chunk callback) and runs a fast beam_size=1 transcription check every
~0.6s. When a cancel keyword is detected it immediately calls
cancel_dictation() without waiting for the silence timer to expire or
a full transcription to complete.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The live waveform and silence auto-stop countdown were driven by a level
meter that was the last user of sounddevice/PortAudio, which hangs opening
the default input on PipeWire systems — so both stayed blank on the hotkey
and wakeword paths alike. Rewrite LevelMeter to stream raw PCM from the same
recorder as the WAV path (pw-record/parecord/arecord) and RMS it; identical
API, scaling, and ~10 Hz cadence. Also fixes the Settings mic-level preview.
Set GLib prgname/application name to "Blitztext" before any window is
realized (and add StartupWMClass to the .desktop) so the taskbar and GNOME's
"… is not responding" dialog show the app name instead of "__main__.py",
without touching the `python -m blitztext` entry point.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Two follow-ups from hands-free testing:
- Audio cues had no off-switch: empty sound fields fall back to the freedesktop
system chime, so wakeword/recording always made noise. Add a [sounds] enabled
master flag (default true) exposed as "Play audio cues" in Settings → Input.
When off, _play_cue/_play_sound are no-ops — fully silent operation.
- The VAD level meter (sounddevice/PortAudio) leaked harmless thread-teardown
errors ("pthread_join ... failed", "PaUnixThread_Terminate ... failed") to the
terminal on every clip end. PortAudio writes these straight to fd 2, so wrap
the stream open/close in a fd-level stderr suppressor (_quiet_c_stderr).
Tests: cue gating respects the master switch (16 passed).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
New GTK settings with a dropdown+editor pattern across four tabs:
- Presets: select/add/delete prompt presets; edit name, keywords, hotkey, mode,
per-preset model/temperature, and a clearly-bordered prompt textfield.
- Engines: STT and LLM engine managers with green/red online-offline status
dots, add/edit/delete, active selector, and an STT record-and-benchmark Test.
- Input: input scheme + keys + quality-gate settings.
- General: microphone picker with a live sounddevice level meter, output,
language, notifications, launch-on-login toggle, and local-Whisper settings.
Adds audio.py (mic enumeration via pactl + LevelMeter) and autostart.py
(~/.config/autostart entry). Recorder + daemon honour the selected mic.
Requirements gain sounddevice + tomli-w.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
