This is the company that does the audio processing for Shazam: http://www.landmarkdigital.com/ http://www.landmarkdigital.com/ Met the lead developer at an NSC

This is the company that does the audio processing for Shazam: http://www.landmarkdigital.com/ http://www.landmarkdigital.com/ Met the lead developer at an NSConference. Found it very interesting that they are using Objective-C and Cocoa for the server-side audio processing.