![]() ![]() Shazam works by analyzing the captured sound and seeking a match based on an acoustic fingerprint in a database of millions of songs. ![]() The user tags a song for 10 seconds and the application creates an audio fingerprint. Shazam stores a catalogue of audio fingerprints in a database. It uses a smartphone or computer's built-in microphone to gather a brief sample of audio being played. Shazam identifies songs based on an audio fingerprint based on a time-frequency graph called a spectrogram. 3.3 2018–present: Subsidiary of Apple Inc.3.2 2006–2017: Smartphone app and expansion.
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