Saturday, May 18, 2019

Trimming and Speeding MP3s

sox is a great command-line tool ("swiss army knife") for working with sound.

You can download it using apt-get or the software manager for your system.

Trimming a file is easy:

sox trim

sox fullsong.mp3 trimsong.mp3 trim 1:00 2:30

This trims a two and half minute portion of the file starting from the 1:00 minute mark.

Speeding up an audio file is also easy. To speed it up by 10%, use:

sox normalsong.mp3 fastersong.mp3 tempo 1.1

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