pydub_audio_slice_concatenate_volume_adjust_export.py

1from pydub import AudioSegment
2
3# Load an mp3 file
4song = AudioSegment.from_mp3("never_gonna_give_you_up.mp3")
5
6# Pydub doing things in milliseconds
7ten_seconds = 10 * 1000
8
9# Slice the first 10 seconds
10first_10_seconds = song[:ten_seconds]
11
12# Slice the last 5 seconds
13last_5_seconds = song[-5000:]
14
15# Boost the volume by 6dB
16beginning = first_10_seconds + 6
17
18# Make the end 3dB quieter
19end = last_5_seconds - 3
20
21# Concatenate audio (add one to the end of another)
22without_the_middle = beginning + end
23
24# How long is it?
25print(len(without_the_middle))
26
27# Repeat the beginning
28do_it_over = with_the_middle * 2
29
30# Keep only the first 2 seconds
31keep_only_2 = do_it_over[:2000]
32
33# 1.5 second crossfade
34with_style = beginning.append(end, crossfade=1500)
35
36# Save the result (it can be any format ffmpeg supports)
37with_style.export("mashup.mp3", format="mp3")