Natural Speech Synthesis Quality Enhancement Program
To address the problem of mechanical sounds generated by TTS, the Kyutai project offers the following improvements:
- Prosody control parameters::
–--pitch-variation 0.2Add pitch change (0-1)
–--speech-rate 1.1Slight acceleration (0.8-1.5)
–--emphasis-strength 0.3Keyword Accent Enhancement - Contextual correlation optimization: Preserve paragraph structure when entering text (with the
nnseparation), the model automatically learns intonation ebb and flow - Post-processing technology::
1. Utilizationsoxtool to add fine-tuned reverb:sox output.wav final.wav reverb 10 50 100
2. Application of dynamic compression:compand 0.3,1 6:-70,-60,-20 - Voice Cloning Alternatives: When a very high degree of naturalness is required, apply to test a non-open-source speech cloning feature (10 seconds of reference audio is required).
After optimization, the MOS (Mean Opinion Score) can be improved from 3.2 to 4.1. For professional scenes, it is recommended that intonation correction of 5% be performed manually after synthesis.
This answer comes from the articleKyutai: Speech to text real-time conversion toolThe
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