Llasa_TTS_(1B).ipynb  not working

Without running the code, the wav file play successfully. Sound good.

When I tried to run all in the colab:
https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/Llasa_TTS_(1B).ipynb

It's finished successfully. However, the resulting WAV file does not contain any speech at all, just noise.

I want to use it to fine-tune another language. 

Please advise.
Thanks.
