The Shazam music finder app allows the user to easily find out the details to a song that is playing through a process aptly named ‘Shazam’. Being the first of its kind, the app gained popularity for its unique ability. Users quickly adopted the app’s name in phrases such as ‘I Shazamed the song” to indicate usage of the app.
Song Recognition Technology
Shazam works by analysing a song’s frequency patterns and finding a match within its database of songs. Each song has a unique frequency pattern, and this is how Shazam can differentiate between tracks. Even when a song is redone (a cover or acoustic version), the frequency pattern for the new version is different from the original. The frequency pattern is referred to as an audio fingerprint. This is because it works like a person’s fingerprint – and even identical twins have different fingerprints.
When you use Shazam to identify a song on the radio, the app picks the sample of the song and scans its database for a matching audio fingerprint. The sample, usually 10 seconds long, say from 0.10 – 0.20 seconds into the song, is enough to detect a match. Once a match is found, Shazam displays details of the song on your screen from its database.
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