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On windows usualy for karaoke purpose some audio cards provide possibility to change tonality on fly, is it possible under Mac ?

Is ther any additional software which can do it ? or maybe terminal command ?

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Just saw this post… and thought of your question... Haven't tried this myself but it looks like you might get close with Sunflower and AU Lab. – AllInOne Mar 26 '13 at 17:35

Have a look at Capo. From their Website:

Pitch Adjustment

Capo lets you adjust the pitch of your songs—so you can change their key or fine tune them to match your instrument.

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It means that I can do it only for particular song, which will play in that app. But I would like to have it in system wide area – user998700 Feb 22 '13 at 20:14
yeah with capo you can only adjust it for the currently loaded song. – Pfitz Feb 22 '13 at 20:16
but I'm looking something system wide solution :( – user998700 Feb 22 '13 at 20:29

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