Strip silence from voice recording



I want to remove or speed up small sections of silence in an audio recording, corresponding to the breaks between sentences and paragraphs.

I have some audio files for a book that I need to listen to for a class. In order to reduce the amount of time taken to listen to the book, I have sped the audio up in my audio player to as fast as I can understand it, but it will still take too long to listen to the book.

In this case, the person who recorded the book leaves rather long gaps between sentences and paragraphs. How can I remove/speed up just those gaps between words to allow me to listen to it in less time?

Any answer needs to be usable on Ubuntu 15.04. I would prefer a solution that doesn't cost me any money and is free-as-in-freedom, but neither of those is a deal-breaker.


Posted 2015-09-21T22:53:54.617

Reputation: 123

Is using Reaper an option? – Michael Hansen Buur – 2015-09-22T07:53:42.287

@MichaelHansenBuur If it doesn't support Ubuntu, then its not an option. If it does, it is. – AJMansfield – 2015-09-22T14:02:44.897

The Audacity option should be fine then :-) – Michael Hansen Buur – 2015-09-22T14:26:29.150



Audacity has a Truncate Silence effect (Effect > Truncate Silence...) which should be able to do what you want:

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There are many other alternatives in other applications - but these are for Windows or OSX. I'll list them here for other users with same question but different host/OS needs:

Michael Hansen Buur

Posted 2015-09-21T22:53:54.617

Reputation: 3 612

I will try this! – AJMansfield – 2015-09-23T00:06:49.207

This worked like a charm! (Sorry, lost track of the question until now...) – AJMansfield – 2016-07-20T13:22:17.323