Reading encoded music with audio analyser

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Post » Tue Mar 28, 2017 3:14 pm

I was wondering if I could use the audio analyser effect to detect (humanly unhearable) triggers pre-written in a song (think of Guitar Hero's notes).
I (kind of) got it working by using a really high frequency (over what a human can hear, 20kHz), but I was wondering if there was a better approach (using frequency bins)

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