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I've got some .aiff files that I've polished in Sound Studio (v3). Playing them in Sound Studio, and then playing them in iTunes (still the same .aiff file, not a mp3 of it), they sound quite different. I'd call it brigher, with more highs.
Does iTunes do something to audio files by default? Why the radical difference in sound?
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I'm not sure about Sound Studio as I've never used it, but iTunes uses a bullt-in equilizer. There are also settings for automatic volume adjustment in iTunes that may affect the sound output.
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itunes has a audio enhancer that is on by default - you can turn it off in the prefs
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Do both applications hook into the same decoder backend? I think we can assume iTunes uses QuickTime. What is Sound Studio using to decode the files?
Nathan