1.合并两个语音文件

# coding:utf-8
from pydub import AudioSegment


enPath1 = r'D:\PythonFiles\2018second\speechMerge\testData\nishi.mp3' # 文件的路径
enPath2 = r'D:\PythonFiles\2018second\speechMerge\testData\linvshi.wav' # 文件的路径
targetPath = r'D:\PythonFiles\2018second\speechMerge\resultData\output12.wav' # 合并文件的路径
# 加载MP3文件

song1 = AudioSegment.from_mp3(enPath1)
song2 = AudioSegment.from_wav(enPath2)

# 取得两个MP3文件的声音分贝
db1 = song1.dBFS
db2 = song2.dBFS

# song1 = song1[300:]  # 从300ms开始截取英文MP3

# 调整两个MP3的声音大小，防止出现一个声音大一个声音小的情况
dbplus = db1 - db2
if dbplus < 0:  # song1的声音更小
    song1 += abs(dbplus)
elif dbplus > 0:  # song2的声音更小
    song2 += abs(dbplus)

# 拼接两个音频文件
song = song1 + song2

print(song)

# 导出音频文件
print(song.export(targetPath, format="wav") )
song.export(targetPath, format="wav")  # 导出为MP3格式

第二种方式：

# coding:utf-8
from pydub import AudioSegment
import os, re

slash = '\\'

def test():
    d_merger_path = {'OG37TR-3': ['D:\PythonFiles\\2018second\speechMerge\\addPinyinPackage\\test\HS3-1.wav',
            'D:\PythonFiles\\2018second\speechMerge\\addPinyinPackage\\test\yu_xian_sheng_ma.wav']}
    targetPath_Folder = r'D:\PythonFiles\\2018second\speechMerge\\addPinyinPackage\\test'
    for key ,value in d_merger_path.items():
        name = key
        print(name)
        firstlist = AudioSegment.empty()
        pathList = value
        for path0 in pathList:
            print(path0)

            song = AudioSegment.from_wav(path0)
            firstlist += song

    targetPath = os.path.join(targetPath_Folder + slash, name + '.wav')
    firstlist.export(targetPath, format="wav")  # 导出为WAV格式

test()

2.切割语音

# 循环目录下所有文件
for each in os.listdir('.'):
    filename = re.findall(r"(.*?)\.mp3", each) # 取出.mp3后缀的文件名
    if filename:
        filename[0] += '.mp3'
        mp3 = AudioSegment.from_mp3(filename[0]) # 打开mp3文件
        mp3[17*1000+500:].export(filename[0], format="mp3") # 切割前17.5秒并覆盖保存

https://www.jb51.net/article/115584.htm
https://ptorch.com/news/112.html
https://blog.csdn.net/qq_25883823/article/details/52749279
https://github.com/jiaaro/pydub