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Running Windows 7 64bit, I have a ton of MP3 audio files I would like to crop the same amount of seconds from the beginning of the audio, is there a Free application that can accomplish this? If no free applications please recommend others.

EDIT: I need something with a gui, no command line software if possible.

Thanks.

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Let me guess: trim the intro music off of podcasts? –  Joel Coehoorn Dec 6 '10 at 5:13
    
+1 Close, its a audio book series. :-> –  Moab Dec 6 '10 at 15:19
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3 Answers

up vote 5 down vote accepted

Audacity will allow you to perform batch actions (called "chains") on any number of audio files. You'd load in the files, create a chain that trims the necessary number of seconds, and apply the chain to all the files you wish to affect.

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Wow, I have used that software before, did not know it would do what I needed, thanks I will give it a try tomorrow. –  Moab Dec 6 '10 at 3:48
    
Unfortunately I don't have the hours to learn Audacity or chaining, I will however accept your answer, it can be done with Audacity. –  Moab Dec 11 '10 at 15:05
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@geodave: you cannot do that with Audacity. None of the chain commands trim as wanted. –  simpatico Aug 12 '11 at 1:50
    
Audacity doesn't allow directly working with MP3's last I used it. –  Muhd Feb 14 '13 at 22:54
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dBpoweramp Music Converter (dMC) has a nice GUI and can batch process audio files and has a DSP Effects plugin which includes the ability to trim a fixed amount of time from the beginning or end of a set of files in any of its supported formats. Unlike SoX and Audacity (the other answers), it looks like mp3 is one of the supported formats.

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I'm sure SoX can handle this although I'd recommend some reading. It sounds like you're after the "trim" feature.

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Thanks, I will check it out. –  Moab Dec 6 '10 at 3:08
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Oh, command line software, thanks but no thanks. –  Moab Dec 6 '10 at 3:46
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This generation has been babied way too much with GUIs. –  John T Dec 6 '10 at 4:27
    
Define "this generation" –  Moab Dec 7 '10 at 4:13
    
People who have grown up with nothing but Windows. –  John T Dec 7 '10 at 4:39
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