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I've converted some MP3 files to CAF, but unfortunately all of them have inadecuate volume intensity

Is there a tool to change their volume without resampling, to avoid any possible loss in quality

I used the following command line to do the conversion on a Mac with XCode installed

afconvert -d LEI16 -f 'caff' input_file.mp3 output_file.caf
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migrated from Nov 16 '12 at 11:35

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