Audiofingerprinting, copyright enfringement and MySpace
MySpace announced yesterday that they will start using Gracenote's
audio fingerprinting to make sure that Myspace users are not uploading
copyrighted music. According to a Macworld article:
Now I wonder how well this will actually work. Audio Fingerprinting is designed to be insensitive to most 'naturally occuring' music distortions such as encoding artifacts, noise and changes in equalization, but I don't know of any audio fingerprinting system that will work well when faced with people who are actively trying to evade detection. It won't be too difficult for a properly motivated MySpace user to find a set of filters that can be applied to any song that will allow the song to get a unique fingerprint, without actually changing how the song sounds. A quick trip through Audacity to apply a micro-pitch change, a little equalization, and perhaps a slight tempo change will probably do the trick. Of course, the folks over at Gracenote are pretty smart and may be able to adapt to evasions, but this will no doubt lead to even more sophisticated evasions. In the end I don't think it is possible to create a fingerprinting system that will be able to deal with people who are actively evading the system. In the end, the evaders will win.
MySpace will review all music audio recordings uploaded by community
members to their profiles, identifies that which is copyrighted, and
blocks the uploading of such music as appropriate.
Now I wonder how well this will actually work. Audio Fingerprinting is designed to be insensitive to most 'naturally occuring' music distortions such as encoding artifacts, noise and changes in equalization, but I don't know of any audio fingerprinting system that will work well when faced with people who are actively trying to evade detection. It won't be too difficult for a properly motivated MySpace user to find a set of filters that can be applied to any song that will allow the song to get a unique fingerprint, without actually changing how the song sounds. A quick trip through Audacity to apply a micro-pitch change, a little equalization, and perhaps a slight tempo change will probably do the trick. Of course, the folks over at Gracenote are pretty smart and may be able to adapt to evasions, but this will no doubt lead to even more sophisticated evasions. In the end I don't think it is possible to create a fingerprinting system that will be able to deal with people who are actively evading the system. In the end, the evaders will win.
Posted by Stephan on October 31, 2006 at 07:56 AM EST #
Posted by Jeremy P on October 31, 2006 at 03:08 PM EST #