- VAD_SPEECH_THRESHOLD_DB = -35 (louder than silence threshold)
- Needs 300ms of speech before counting as real speech
- Recording discarded if only background noise detected
- Prevents sending garbage to Whisper in conversation mode
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Preload next audio while current plays (eliminates gap between sentences)
- Remove trailing dots from sentences (XTTS reads them aloud)
- stopPlayback cleans up preloaded audio
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Audio packets queued instead of stopping previous
- _playNext() plays sequentially, each sentence after the previous
- stopPlayback() clears queue
- Fixes overlapping/skipping with XTTS sentence-by-sentence rendering
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>