Creating Shazam in Javahttps://www.royvanrijn.com/blog/2010/06/creating-shazam-in-java/
How Shazam Works | Free Won'thttps://laplacian.wordpress.com/2009/01/10/how-shazam-works/
Music Recognition Algorithms: How Does Shazam Work? | Toptal®https://www.toptal.com/algorithms/shazam-it-music-processing-fingerprinting-and-recognition
Nyquist–Shannon sampling theorem - Wikipediahttps://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem
Patent infringementhttps://www.royvanrijn.com/blog/2010/07/patent-infringement/
Patent infringement (part 2)https://www.royvanrijn.com/blog/2010/11/patent-infrigement-part-2/