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I want to painlessly double the volume of and cut up audio files, for free on Windows 10 and/or Ubuntu.

Audacity does the latter, but I'm overwhelmed attempting the first.

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  • Please add more details. Free? OS? – Thomas Weller Aug 28 '15 at 14:06
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    Audacity: Effects / Amplify by +6 db should double the volume. IMHO, Effects / Normalize does a better job since you typically cannot rely on an starting volume. Normalize defines the output volume instead of acting on the input volume. – Thomas Weller Aug 28 '15 at 14:08
  • @Thomas To actually double the acoustic volume (Sound Pressure Level), an increase of 3dB would be correct. 6dB would double the voltages at the speaker/headphones, which, together with the also doubled current, causes a 4 times higher energy output. At the end however, Normalize would be a better option anyway, exactly as you mentioned. – Marcel Aug 31 '15 at 6:56
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    @Marcel: thanks for the explanation. Seems I did it wrong all the time... – Thomas Weller Aug 31 '15 at 7:23
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A nice, free, lightweight audio editor that is not audacity is Wavosaur. It allows you to cut, move, and edit the volume of audio files. Cutting is simply done using standard cut/copy/paste commands, and volume is done via the process menu.

Best of all, the largest version is only just over a megabyte!

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