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feat: upgrade TTS to gpt-4o-mini-tts with voice instructions 

- Switch from tts-1 to gpt-4o-mini-tts for lower latency and better quality
- Change voice from alloy to coral
- Add Chinese speech instructions for natural tone control

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
hailin 2026-03-01 08:19:05 -08:00
parent ba83e433d3
commit 705647d732
2 changed files with 3 additions and 2 deletions
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1
packages/services/voice-agent/src/agent.py
View File

@ -168,6 +168,7 @@ async def entrypoint(ctx: JobContext) -> None:
tts = openai_plugin.TTS( tts = openai_plugin.TTS(
model=settings.openai_tts_model, model=settings.openai_tts_model,
voice=settings.openai_tts_voice, voice=settings.openai_tts_voice,
instructions="用自然、友好的中文语气说话，语速适中，像真人助手一样。",
client=_oai_client_tts, client=_oai_client_tts,
) )
else: else:

4
packages/services/voice-agent/src/config.py
View File

@ -27,8 +27,8 @@ class Settings(BaseSettings):
openai_api_key: str = "" openai_api_key: str = ""
openai_base_url: str = "" openai_base_url: str = ""
openai_stt_model: str = "gpt-4o-transcribe" openai_stt_model: str = "gpt-4o-transcribe"
openai_tts_model: str = "tts-1" openai_tts_model: str = "gpt-4o-mini-tts"
openai_tts_voice: str = "alloy" openai_tts_voice: str = "coral"
# Device # Device
device: str = "cpu" # "cpu" or "cuda" device: str = "cpu" # "cpu" or "cuda"