Convert multiple MP3 files to WAV in python

Question

I want to convert multiple MP3 audio files in a folder to WAV format (with mono type) using python code.

I tried the below code using pydub:

import os
from pydub import AudioSegment

audio_files = os.listdir('path')
# Folder is having audio files of both MP3 and WAV formats
len_audio=len(audio_files)
for i in range (len_audio):
    if os.path.splitext(audio_files[i])[1] == ".mp3":
       mp3_sound = AudioSegment.from_mp3(audio_files[i])
       mp3_sound.export("<path>\\converted.wav", format="wav")

I am getting how will i export the converted wav file with different file names.

please suggest

Answer 1

I would do something like:

import os
from pydub import AudioSegment

path = "the path to the audio files"

#Change working directory
os.chdir(path)

audio_files = os.listdir()

# You dont need the number of files in the folder, just iterate over them directly using:
for file in audio_files:
    #spliting the file into the name and the extension
    name, ext = os.path.splitext(file)
    if ext == ".mp3":
       mp3_sound = AudioSegment.from_mp3(file)
       #rename them using the old name + ".wav"
       mp3_sound.export("{0}.wav".format(name), format="wav")

You can find more about the format mini language here.

Answer 2

This is simply just changing the extension name of multiple files

import os
from pathlib import Path
path = "the path to the audio files"
#Change working directory
os.chdir(path)
audio_files = os.listdir()
for file in audio_files:
    p = Path(file)
    p.rename(p.with_suffix('.wav'))