How can I use piper as external grpc backends?

[JimHeo]

Hello,

I hope this message finds you well. I am interested in using go-piper as an external gRPC backend. However, I have some questions since it seems that extracting go-piper to an external port involves dependencies separate from go-piper itself.

To accomplish this, it appears that I need to use the files from backend/go/tts and backend.proto to create a binary file. Could you please provide guidance on how to proceed with this?

Additionally, I would like to run piper using a GPU. It seems there is a method to do this in the master branch of piper, and I am wondering if I can utilize it.

Thank you for your assistance.

[JimHeo]

I separated piper TTS into an external gRPC backend, but it appears that piper model may not support the correct GPU when running it.