1. 下载ffmpeg
https://www.gyan.dev/ffmpeg/builds/packages/ffmpeg-7.1.1-full_build.7z
2. 配置ffmpeg环境变量
3.安装pydub
pip install pydub
4.编写转化工具代码
from pydub import AudioSegment
def convertM4aToWav(m4a,wav):sound = AudioSegment.from_file(m4a, format='m4a')sound.export(wav, format='wav')