Comments on: Shazam http://vito.es/blog/posts/257/shazam?utm_source=rss&utm_medium=rss&utm_campaign=shazam Un altre weblog. Fri, 20 Apr 2012 21:56:16 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Sergio http://vito.es/blog/posts/257/shazam/comment-page-1#comment-1049 Sergio Thu, 28 Aug 2008 07:37:38 +0000 http://vito.es/blog/?p=257#comment-1049 Well, when I was working in Germany ;-) I used to do that in a much easier way, without any processing whatsoever. All you need is an internet connection and the song's metadata to be stored in the database (to have been previously done by someone with too much free time). It does not matter whether the song's being played or not, the metadata (i.e., song's name, album, etc.) can be retrieved anyway. The thing is, each song has a fingerprint that is sent to the database, then a match is found (hopefully the right one), and then you get back the name artist, album, song name, etc (these metadata are called ID3 tags in MP3, for instance, I don't know for apple's proprietary formats). In the case of the iPhone, I don't know whether the database is stored in the phone, accessed via a mobile comms. link or whatever, but the principle is the same connect to remote database --> send song's fingerprint --> search match in database --> get metadata back to your program and show it on the screen to make the user go crazy!! Examples of databases are freedb (http://en.wikipedia.org/wiki/Freedb) or CDDB (http://en.wikipedia.org/wiki/CDDB). Check them out and their links and everything if you want to learn more. It is not really difficult to get it done, but cool nonetheless! Cheers! Sergio Well, when I was working in Germany ;-) I used to do that in a much easier way, without any processing whatsoever. All you need is an internet connection and the song’s metadata to be stored in the database (to have been previously done by someone with too much free time). It does not matter whether the song’s being played or not, the metadata (i.e., song’s name, album, etc.) can be retrieved anyway. The thing is, each song has a fingerprint that is sent to the database, then a match is found (hopefully the right one), and then you get back the name artist, album, song name, etc (these metadata are called ID3 tags in MP3, for instance, I don’t know for apple’s proprietary formats).

In the case of the iPhone, I don’t know whether the database is stored in the phone, accessed via a mobile comms. link or whatever, but the principle is the same

connect to remote database –> send song’s fingerprint –> search match in database –> get metadata back to your program and show it on the screen to make the user go crazy!!

Examples of databases are freedb (http://en.wikipedia.org/wiki/Freedb)
or CDDB (http://en.wikipedia.org/wiki/CDDB). Check them out and their links and everything if you want to learn more.

It is not really difficult to get it done, but cool nonetheless!

Cheers!

Sergio

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