Actually, www.musicbrainz.org is the successor to CDINDEX. Basically, we took the existing CD lookup infrastructure for CDINDEX, made a nice XML based client, and added single track based audio signatures, to create a system that can lookup cds, mp3's, and (coming soon) streams. In the last week, since we started the current open beta (which you can access through the freeamp player) we have built up over 15K song to metadata mappings, with more appearing every day.
-Sean Ward
Actually, having recently written an audio signaturing/recognition system, generic genre type classification is very easy.
There is a strong correlation between average spectral usage and genre, particularly between genres such as classical (which looks fairly symmetric, as a good symphony uses the whole spectral range) and more beat/vocal heavy types such as electronic, which are dominated by low frequencies. For song level identification, however, you need to include additonal features, such as sonic energy, which gives a unique (across my test sets at least) fingerprint of music. But, based on those sonic signatures you can realise that track1.mp3 is really Metallica's Unforgiven (which is useful if you didn't know that it was;).
Congratulations on NOAA, BTW. As a former UVA CS student, its nice to see your work with Legion and beowulf systems continue to succeed. For people outside of the clustering community, take a look at http://legion.virginia.edu .
Recently I have been seeing the beginnings of business adoption of beowulf style systems, as they are finally realizing the benefits which the scientific community has been enjoying for years;). Up to now, however, most of the tools for beowulf work, such as schedulers, message passing APIS's, administrative tools, and file systems have been geared towards scientific problems, often lacking such features as fault tolerance or security. Has there been an anti-business bias within the beowulf community? And, if so, what do you think will be needed to change it?
And, as an unrelated question, if you could see one advance in beowulf technology happen tommorrow, what would it be?
Actually, their is already a project underway to make a beowulf using Playstation 2 boxes. Check out http://wulfstation.sourceforge.com. Sony, sensing the PR opportunities there, is donating Playstation 2 dev kits to the team, and a working prototype is expected this year.
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Actually, www.musicbrainz.org is the successor to CDINDEX. Basically, we took the existing CD lookup infrastructure for CDINDEX, made a nice XML based client, and added single track based audio signatures, to create a system that can lookup cds, mp3's, and (coming soon) streams. In the last week, since we started the current open beta (which you can access through the freeamp player) we have built up over 15K song to metadata mappings, with more appearing every day. -Sean Ward
There is a strong correlation between average spectral usage and genre, particularly between genres such as classical (which looks fairly symmetric, as a good symphony uses the whole spectral range) and more beat/vocal heavy types such as electronic, which are dominated by low frequencies. For song level identification, however, you need to include additonal features, such as sonic energy, which gives a unique (across my test sets at least) fingerprint of music. But, based on those sonic signatures you can realise that track1.mp3 is really Metallica's Unforgiven (which is useful if you didn't know that it was ;).
Congratulations on NOAA, BTW. As a former UVA CS student, its nice to see your work with Legion and beowulf systems continue to succeed. For people outside of the clustering community, take a look at http://legion.virginia.edu .
Recently I have been seeing the beginnings of business adoption of beowulf style systems, as they are finally realizing the benefits which the scientific community has been enjoying for years ;). Up to now, however, most of the tools for beowulf work, such as schedulers, message passing APIS's, administrative tools, and file systems have been geared towards scientific problems, often lacking such features as fault tolerance or security. Has there been an anti-business bias within the beowulf community? And, if so, what do you think will be needed to change it?
And, as an unrelated question, if you could see one advance in beowulf technology happen tommorrow, what would it be?
Actually, their is already a project underway to make a beowulf using Playstation 2 boxes. Check out http://wulfstation.sourceforge.com. Sony, sensing the PR opportunities there, is donating Playstation 2 dev kits to the team, and a working prototype is expected this year.