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This is an original idea that comes in handy for Karaoke and knowing what words are on tracks for you to censor or sing a long too,

Thanks to A.I tech that's already out there on most video editing software's,
that can detect voice to text and display them,

I don't think this DJ software is pioneering anything new, they are just copying and duplicating ideas that are already out there, hence why they are stealing audio effects that are on the Rane, Pioneer DJ hardware's.