Major fixes for VibeVoice engine functionality:
Audio Quality Improvements:
- Replace linear interpolation resampling with librosa.resample (matches official)
- Fix normalization to use -25 dB FS RMS instead of peak normalization (matches official)
- Implement proper stereo-to-mono conversion with channel averaging (matches official)
Multi-Character Voice Switching:
- Add proper character mapping using get_character_mapping() like F5-TTS does
- Build complete voice_mapping with fallbacks for all parsed characters
- Fix character parser to auto-discover characters when available_characters is None
- Remove unnecessary fallback logic from processor (handled at wrapper level)
Pause Tag Support:
- Add modular pause tag processing like F5-TTS using generate_vibevoice_with_pause_tags()
- Integrate PauseTagProcessor for [pause:X] support in VibeVoice
- Follow established modular pattern from F5-TTS and ChatterBox implementations
Cache System Improvements:
- Fix floating point precision issues in cache key generation (round to 3 decimals)
- Add proper parameter propagation to cached engine instances
- Ensure cache keys include all generation parameters properly
All changes tested and working - multi-character switching now works correctly
and pause tags are processed properly using the modular system.
diodiogod
edbcb3422d