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I'm looking for some software to increase the volume of a track that I have in m4a (but I know how to convert it to whatever) for osx. Can anyone name such a thing?

I tried macMP3gain but that doesn't seem to help at all.

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  • You made the m4a file? With what software? There may be solutions within the software you used to make the initial m4a file to increase the volume.
    – Bon Gart
    May 1, 2012 at 21:42
  • I made the m4a with djay
    – erikvold
    May 1, 2012 at 21:49
  • DJay appears to have an Auto-Gain feature. This most likely normalizes any major audio differences and levels out different tracks to produce a single, even level. I would disable this feature and boost the gain as much as possible (without distortion) when you output to M4A. See if that gets you louder exports.
    – Bon Gart
    May 2, 2012 at 1:52

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Try Audacity. It's an open-source cross-platform audio editor. I haven't used it for years, but normalizing a signal or at least amplifying it is one of the most basic things you can do. There ought to be a very accessible feature in Audacity to do it.

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