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I read some time ago (I think on one of Serenity Caldwell's iMore articles) that Apple Music uses metadata to match on iOS devices, because acoustic fingerprint
by eridius 11y ago
I read some time ago (I think on one of Serenity Caldwell's iMore articles) that Apple Music uses metadata to match on iOS devices, because acoustic fingerprinting is too resource-intensive, but on the desktop it uses acoustic fingerprinting like iTunes Match has always done.
I don't know if this is true, but it does make sense. Although I wonder who actually has music on their iOS device that isn't also in iTunes on their desktop, because the only way you'd hit this is by adding an iOS device to Apple Music that contains music that iTunes did not have.
- bestnameever 11y agoI didn't know you could use iTunes match from iOS devices but if Siri can be integrated with Shazam which has acoustic fingerprinting, then I would think they could do the same with iTunes Match on iOS devices.
- eridius 11y agoYou can't use[1] iTunes Match from iOS devices (for precisely this reason). It's Apple Music that you apparently can (I haven't tested but that's what I've heard). Shazam does have acoustic fingerprinting, but it's much cheaper fingerprinting. And it's cheaper because Shazam is allowed to get it wrong. It doesn't have to get 100% of songs, and when it does get songs, it's perfectly ok for it to not recognize which particular performance a song is from if the artist has multiple versions. But iTunes Match has to be as close to 100% accurate as it can (and better to avoid recognizing a song entirely, thus requiring it to be uploaded, than to mis-identify it as something else). Shazam is only listening to part of the song, but iTunes Match has to fingerprint the entire song, and the amount of processing it does per second of music may very well be higher as well. [1] Where "use" means "upload music to"