Audio Watermarking  
  Use of Spread spectrum and a psychoacoustic model to hide information in the audio signal  
  Cross Platform Audio Signal Processing Framework  
  DSP framework in C++  
  iOS Audio Processing SDK Framework  
  A flexible iOS framework to process sound and music in realtime  
  Genetic Programming  
  Design of sound synthesizers using evolutionary methods. New algorithms for synthesis are easily created.  
  Sparse matrix technology to handle millions of items and users in recommendation engines  
  Media Fingerprinting  
  Feature extraction for realtime search of media items