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0 pointsghaff8y ago0 comments

You'd need access to the fingerprints database but otherwise should be fairly straightforward.

What's not straightforward is recognizing cover songs and the like. But that's not only non-trivial but AFAIK can't be done.

0 comments

amelius8y ago

> What's not straightforward is recognizing cover songs and the like. But that's not only non-trivial but AFAIK can't be done.

Well, you could translate the music into actual notes (or musical intervals), and use Smith-Waterman (or any more advanced and more recent technique) to find the song with the lowest edit-distance.

rhizome8y ago

Converting digital audio to notes is both not as easy as it sounds and not how Shazam works.

https://www.toptal.com/algorithms/shazam-it-music-processing...

amelius8y ago

Yes, you can look at the frequency with the highest intensity in the FFT. This is the "dumb" version of converting music to notes (and is what I really intended to say but didn't choose to for sake of brevity).

rhizome8y ago

The thing is that the process looks for spectral patterns, let's call it "harmonic content per unit of time," not just notes. Mere notes would result in lots and lots of false positives.

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cortesoft8y ago

Where are you going to get 'the music'? There are millions and millions of hours of music out there, how are you going to gather and fingerprint it all?

azinman28y ago

Uhh isn’t creating the “fingerprint” the non-straightforward part? Keep in mind you could start listening at any point in the song as well.

j / k navigate · click thread line to collapse

0 comments

amelius8y ago

> What's not straightforward is recognizing cover songs and the like. But that's not only non-trivial but AFAIK can't be done.

Well, you could translate the music into actual notes (or musical intervals), and use Smith-Waterman (or any more advanced and more recent technique) to find the song with the lowest edit-distance.

rhizome8y ago

Converting digital audio to notes is both not as easy as it sounds and not how Shazam works.

https://www.toptal.com/algorithms/shazam-it-music-processing...

amelius8y ago

rhizome8y ago

The thing is that the process looks for spectral patterns, let's call it "harmonic content per unit of time," not just notes. Mere notes would result in lots and lots of false positives.

1 more reply

cortesoft8y ago

Where are you going to get 'the music'? There are millions and millions of hours of music out there, how are you going to gather and fingerprint it all?

azinman28y ago

Uhh isn’t creating the “fingerprint” the non-straightforward part? Keep in mind you could start listening at any point in the song as well.

j / k navigate · click thread line to collapse