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Question by benhumphreys · Apr 04, 2013 at 12:37 AM · audioaudiosourcemusicgetspectrumdata

GetSpectrumData over entire file

I'm trying to analyse a music file using GetSpectrumData and GetOutputData, but I don't want to do it for the currently playing segment, I want to do it across the whole file.

Is there a way to do this? All the stuff I've seen in AudioSource refers to just the currently playing frame.

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Answer by drudiverse · Dec 01, 2014 at 08:10 AM

Yes it's possible. you can do it to any degree of complexity, like take 6400 arrays of 64 samples from a 6400 sample long audio file, each one has 1 sample later....

Then you would be writing a waterfall display, i.e. a line of fft values at the top drawing a large 3d array. easily stored in image files.

for a reasonable start, take a 2 second audio file, analyse 1000 segments from it of 256 frequencies, and write the results to a 3d array. then go with further detail if you want. please post the time it takes to analyse it, am curious.

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