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A comment on Show HN: Shazam-like acoustic fingerprinting of continuous audio streams. Parent comment

Re:Show HN: Shazam-like acoustic fingerprinting of continuou... by dest on Wednesday November 29, 2017 @05:24PM (#15811468)
Uh, are you sure of what you are writing here? Time-frequency analysis (including spectrograms) is one of the very fundamental tools for signal processing.
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Re:Show HN: Shazam-like acoustic fingerprinting of continuou... by ssalazar on Wednesday November 29, 2017 @05:52PM (#15811655)
True, i was thinking of a spectrogram as purely a visualization of a time-series of DFTs but Matlab and other tools do not make this distinction.

I was mainly responding to the OP's distinction between analyzing a visual representation and analyzing a "2d array" when they are basically the same thing.

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Re:Show HN: Shazam-like acoustic fingerprinting of continuou... by throwmenow_0140 on Wednesday November 29, 2017 @07:24PM (#15812226)
> analyzing a visual representation and analyzing a "2d array" when they are basically the same thing.

This is what I mean. I guess their tooling just outputs graphics and it's easier to work with those than the pure 2d array in numpy or something similar.

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Re:Show HN: Shazam-like acoustic fingerprinting of continuou... by jmmcd on Thursday November 30, 2017 @03:34AM (#15814269)
No, the graphics are only being used as part of the explanation. The algorithm is not working with them.
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