Python Pydub Module
Pydub lets you do stuff to audio in a way that isn't stupid. It provides a simple and high-level interface for audio manipulation.
Installation
Pydub requires ffmpeg or libav to be installed on your system.
pip install pydubLoading Audio
from pydub import AudioSegment
song = AudioSegment.from_mp3("song.mp3")
# song = AudioSegment.from_wav("song.wav")
# song = AudioSegment.from_file("song.m4a", format="m4a")Slicing and Concatenation
AudioSegments are immutable and support slicing (in milliseconds) and addition.
# First 10 seconds
first_10_seconds = song[:10000]
# Last 5 seconds
last_5_seconds = song[-5000:]
# Concatenate
beginning = first_10_seconds + last_5_secondsEffects
# Boost volume by 6dB
louder_song = song + 6
# Reduce volume by 3dB
quieter_song = song - 3
# Fade in/out
awesome = song.fade_in(2000).fade_out(3000)
# Reverse
backwards = song.reverse()Exporting
awesome.export("mashup.mp3", format="mp3")