src/my_utils.py

import ffmpeg
import numpy as np
import os

def load_audio(file, sr):
    try:
        # https://github.com/openai/whisper/blob/main/whisper/audio.py#L26
        # This launches a subprocess to decode audio while down-mixing and resampling as necessary.
        # Requires the ffmpeg CLI and `ffmpeg-python` package to be installed.
        file = (
            file.strip(" ").strip('"').strip("\n").strip('"').strip(" ")
        )  # 防止小白拷路径头尾带了空格和"和回车
        out, _ = (
            ffmpeg.input(file, threads=0)
            .output("-", format="f32le", acodec="pcm_f32le", ac=1, ar=sr)
            .run(cmd=["ffmpeg", "-nostdin"], capture_stdout=True, capture_stderr=True)
        )
    except Exception as e:
        raise RuntimeError(f"Failed to load audio: {e}")

    return np.frombuffer(out, np.float32).flatten()


def add_stem_name(path, stemname):

    directory, filename_with_ext = os.path.split(path)
    filename, extension = os.path.splitext(filename_with_ext)

    # Concatenate the stem name with desired suffix and extension
    new_filename = f"{filename}{stemname}{extension}"

    # Construct the new path
    new_path = os.path.join(directory, new_filename)

    return new_path