Shazam -Abdulshafil Ahmed -Steven Lewis -Rick Huang

What is Shazam? - Mobile phone based application that listens to music and compares against a database.

Technology Takes 10 second sample Catalogs the spectrogram (fingerprint) Compares against large database If match is found, – Gives song information – Offers immediate purchase

Technology Pair of peaks: peak + anchor Hash table searching O(l), collision reduced by having extra key by orders of magnitude Robustness to interference?

Societal Impact Introducing people to new music. Hear a song once, have it forever

Economic Impact Improves music sales Music sales are a convenient impulse buy More efficient advertisement of music. m9bY

Conclusion Turns the world into a record store

References ml ml ow-shazam-works/ ow-shazam-works/