python 使用ffmpeg在python中导出mp3

Posted 2021-05-09

from subprocess import call
import shutil

def export_as_mp3(export_path, y, sr,  bitrate='192k'):
    tmp_input_path = "/tmp/___mp3___.wav"
    tmp_output_path = "/tmp/___mp3___.mp3"
    librosa.output.write_wav(tmp_input_path, y, sr)
    call(["ffmpeg", "-i", tmp_input_path, "-b:a", str(bitrate), tmp_output_path])
    shutil.move(tmp_output_path, export_path)