app/routers/voice_api.py

from fastapi import APIRouter, HTTPException,UploadFile
from fastapi.responses import StreamingResponse, FileResponse
from app.rvc.rvc_infer import rvc_convert
import os
import base64
router = APIRouter(
    prefix="/clone",
    tags=["cloning"],
    responses={404: {"description": "Not found"}},
)

@router.post("/")
async def generate_voice(audio_file: UploadFile,speaker_name: str ):
    base_path = "/Users/saboor/Documents/TTS-RVC-API-1/models/"
    speaker_dir = os.path.join(base_path, speaker_name)

    if os.path.exists(speaker_dir):
    # Get a list of all files in the directory
         files_in_dir = os.listdir(speaker_dir)
         pth_files = [file for file in files_in_dir if file.endswith(".pth")]
         if len(pth_files) == 1:
            pth_file_path = os.path.join(speaker_dir, pth_files[0])
    #  Save the uploaded file to a temporary location
    with open(f"temp_{audio_file.filename}", "wb") as f:
        f.write(audio_file.file.read())

    wav_opt = rvc_convert(
        model_path=pth_file_path,
        f0_up_key=-4,
        input_path=f"temp_{audio_file.filename}",  
    )
    with open(wav_opt, "rb") as wav_file:
        wav_bytes = wav_file.read()
        base64_bytes = base64.b64encode(wav_bytes)
        base64_string = base64_bytes.decode("utf-8")

    return {"base64_wav": base64_string}