Installation

copy the pydub director into your python path

-OR-

pip install pydub

Dependencies

requires ffmpeg for encoding and decoding all non-wav files (which work natively)

• ffmpeg (http://www.ffmpeg.org/)

Example Use

from pydub import AudioSegment

song = AudioSegment.from_mp3(song_mp3_file)
dj_intro = AudioSegment.from_mp3(some_mp3_of_a_dj)

# let's just include the first 30 seconds of the song in the
# promotional clip (slicing is done by milliseconds)
beginning_of_song = song[:30*1000]

# We don't want an abrupt stop at the end, so let's do a 5 second fadeout
beginning_of_song = beginning_of_song.fade_out(5 * 1000)

# 50 ms crossfade to eliminate pops
promo_clip = dj_intro.append(beginning_of_song, crossfade=50)

# hmm I wonder how long it is... ( len(audio_segment) returns milliseconds )
promo_length = len(promo_clip) / 1000

# lets save it!
out_f = open("%s_second_promo_clip.mp3" % promo_length, 'wb')
shout.export(out_f, format='mp3')