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Find Music Based On Its Sound
posted by Editor on Friday June 28, @02:26PM
Search Interfaces There are lots of search engines that allow you to find music on the Web based on file names, song title, composer or performer. But how can you find a song if you know what it sounds like, but can't remember its name, or who performed it? The MusArt Music Retrieval System allows a user to find music by singing or playing a theme, hook, or riff from the desired piece of music. The system transcribes the query into hidden Markov models (HMM), which it tries to match with tunes generated from the songs of a database. In tests, it consistently returned the songs with the most similar themes. Here is a paper that discusses the technique in more detail.

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  • This discussion has been archived. No new comments can be posted.
    Searching Music (Score:1)
    by ashley-y on Saturday June 29, @09:54PM EST (#1)
    (User #131 Info)

    I once came across a book which allowed you to look up melodies. You simply figured out whether the pitch of each note is higher ('up'), lower ('down') or the same ('repeat') as the previous note. You'd then turn this into a string of characters, with '*' for the first note. For instance --

    • Beethoven's Fifth Symphony:
      *RRDURRDURRDURRDURRD...

    • The Star-Spangled Banner:
      *DDUUUUDDDUURRUDDDDUURDDD...

    • Yankee Doodle:
      *RUUDUDDURUUDDURUUUDDDDDUUUR

    ...and then you could look up the name of the melody using that. The book had a wide range of classical and folk tunes, and didn't need anything so complex as a hidden Markov model. A very neat solution to the "what's that tune?" problem I thought, but perhaps that's not quite the same problem that MusArt is trying to solve.


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