On Sunday 12 December 2010 17:02:27 Keith Roberts wrote: > I need to remove (or shorten to 5 seconds) any silent > sections throughout the Mp3 file - not just the beginning or > the end. I usually do this in Audacity (graphical app) and the feature is called "Truncate Silence". I'm not sure if you need to do this in a console app. Also, Audacity will uncompress your mp3 file to perform the edit which then you can export back to mp3 (transcode). I don't know of any app that will trim silence on MP3s in a lossless way. HTH, Jorge