Contents
Python – Convert wav to mp3
In this tutorial, you shall learn how to convert a given .wav audio file to .mp3 audio file using pydub library in Python.
Prerequisites
You must have pydub and FFmpeg installed in your system.
Refer Install pydub.
Step to convert .wav to .mp3 using pydub
1. Import AudioSegment
We have to import AudioSegment class from pydub package.
from pydub import AudioSegment2. Create AudioSegment
We have to create AudioSegment from given input audio file. Since the input audio is in WAVE format, we have to call from_wav() method of the AudioSegment class, and pass the path of given input audio file as string argument.
audio = AudioSegment.from_wav(input_audio_file)3. Export AudioSegment
We can export the AudioSegment created in the previous step to an output file in a specified format.
Since our task is to convert given WAVE audio file to MP3 file, all we have to do is, call export() method on the AudioSegment object, pass the required output file name as first argument, and the format as mp3.
audio.export(output_audio_file, format="mp3")Python Program to Convert .wav to .mp3
Assuming that you installed the pydub and FFmpeg libraries, we shall write a Python program, using the above steps, that converts the given WAV file input.wav to an MP3 file output.mp3.
Python Program
from pydub import AudioSegment
# Convert wav to mp3
audio = AudioSegment.from_wav("input.wav")
audio.export("output.mp3", format="mp3")
print('Success. Given audio converted to mp3.')Output
Success. Given audio converted to mp3.A new audio file output.mp3 should be created.
Summary
In this Python pydub tutorial, we have seen the steps to convert a given WAVE audio file to an MP3 file in Python, using pydub library, with example program.