CHSFM

Results 3 issues of CHSFM

GPU 3060,cpu 12490F ![image](https://github.com/facebookresearch/audiocraft/assets/26627761/25ea3812-2f97-4e42-8ad6-e9d381fbc974) ![image](https://github.com/facebookresearch/audiocraft/assets/26627761/8cb0a651-eb87-422c-8c67-2a3f02690870) ![image](https://github.com/facebookresearch/audiocraft/assets/26627761/0587d834-9aec-40e5-88e8-27af649b4122)

大模型想配置deepseek旗下模型,tts还是用openai原生key的服务,现在模型配置这里共用一个了,没法单独配置

enhancement