python 操作音频文件 pydub

from pydub import AudioSegment

"""
http://builds.libav.org/windows/nightly-lgpl/  下载libav
解压    添加环境变量  ..../usr/bin


"""

# 音频剪切 
def cut(main_wav_path, start_time, end_time, part_wav_path):
    start_time = int(start_time)
    end_time = int(end_time)

    sound = AudioSegment.from_mp3(main_wav_path)
    word = sound[start_time:end_time]

    word.export(part_wav_path, format="wav")

# 音频合并 
def merge(will_merge_file_1, will_merge_file_2,out_file_name=‘output.wav‘):
    input_1 = AudioSegment.from_wav(will_merge_file_1)
    input_2 = AudioSegment.from_wav(will_merge_file_2)
    input_1_db = input_1.dBFS
    input_2_db = input_2.dBFS
    # input_1_time = len(input_1)
    # input_2_time = len(input_2)
    db = input_1_db-input_2_db
    if db>0:
        input_1+=abs(db)
    elif db<0:
        input_2+=abs(db)
    out_put = input_1+input_2
    out_put.export(out_file_name,format=‘wav‘)

python 操作音频文件 pydub

原文：https://www.cnblogs.com/chenxiyuxiao/p/10975292.html