scripts/audio_utils.py

from pathlib import Path
import subprocess
from subprocess import CompletedProcess


def cmd(command: str, check=True, capture_output=False) -> CompletedProcess:
    print(command)
    if capture_output:
        ret = subprocess.run(command, shell=True, check=check, stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
                             universal_newlines=True)
    else:
        ret = subprocess.run(command, shell=True, check=check)
    print(ret.stdout)
    return ret

def to_wav(folder: Path):
    for file in folder.glob("*.mp3"):
        # print(file)
        wav_path = folder / f'{file.stem}.wav'
        if not wav_path.exists():
            command = f"ffmpeg -i {file} -ac 1 -ar 16000 {wav_path}"
            # print(command)
            cmd(command)



if __name__ == '__main__':
    to_wav(Path("/Users/jeqin/work/test/audios/short_audios"))