Ryuichi Oka
Information-Base Functions TRC Laboratory
The "search by humming" software recently developed by RWCP is now a hot
topic. It has been featured in many TV and radio programs, newspapers, and
magazines.
Many people often can only remember part of a melody; they can hum
it, but can't remember its title or the artist, but they want a CD which
includes it.
The "search by humming" software developed by RWCP
Information-Base Functions TRC Laboratory solves such problems.
This software, using pre-registered music signals, lets you search for music just by humming a part of it even if you can't remember its title or the words. This means that when you want to hear part of a long tune, you can replay that part simply by humming it.
Of course, the title and the artist name will also be displayed.
The conventional technologies store music notes to search for the title with humming, but do not use signal waveforms for the search, so music notes must be stored.
This newly developed software automatically retrieves a part of music similar to the user's humming from raw music signals. With this, what you want to hear can be freely retrieved from raw music data just by humming it. Moreover, since it can retrieve from raw music signals, you can search with various personally recorded music signals, as well as commercial music.
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To search for a part of a music signal by humming it. In other words, you can retrieve and replay what you want to hear by humming it
To find the title of a track just by humming part of it
To use personally-recorded music signals for composition and editing
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TRC developed a new method for finding a part similar to humming from music
signals. The procedure is as follows (see Fig. 1 and Fig. 2):