acoustic fingerprint

(redirected from Audio signature)

acoustic fingerprint

A summary of the attributes of sound that is used to identify a variety of audio material, including music, sound effects and radio broadcasts. It is widely used to identify commercial music recordings over the radio. The fingerprint is an analysis of the audio waveforms and includes such characteristics as beats per minute (tempo), frequency range, average power in each frequency band (spectral flatness) and acoustic resonances. See music search, Mobile MusicID, MusicDNS and Shazam.
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References in periodicals archive ?
The 13.5mm dome-type Neodymium magnet drivers manage to pack a clear and bright punch in most tracks, and the overall audio signature clearly favours the bright range of the auditory spectrum.
I worked with the CSS team to identify and vet advanced technologies, including audio signature, call center platform, virtual hold, and dashboard data reporting.
The system's algorithm measures "against a huge number of data points across the spectrum of a gunshot's audio signature to determine if it matches enough of those points."
Letting go of its iconic five-note signature, Coca-Cola is also unveiling a new audio signature that makes use of the sounds that have long been attributed to drinking Coke: the opening of the fridge, the unmistakable fizzing on ice, the cheers and clinking of glasses, the quenching sip, and the irresistible ahhh at the end.
To evaluate audio variation, we firstly separate the audio track and obtain a feature named Audio Signature according to MPEG-7.
In the audio part of the standard [17], a high-level tool is developed for audio identification called audio signature description scheme.
This development can best be attributed to the Raven's audio signature.
MySpace has licensed audio fingerprinting technology developed by Audible Magic, a company based in California, USA, which helps identify a video file's digital audio signature.
It included a Resolution Audio Opus 21 CD player ($3500), Blue Circle BC3000 MkII preamp and BC206 amp ($16,500), and Focus Audio Signature FS-888 speakers ($7750).
For me, that slight crackle is as comforting as the hiss of logs burning in a fireplace, because it means the recording has a history--a history to which one has perhaps oneself contributed: the crackling and popping is an index to the LP's venerability, its endless revolutions in your heart, its homey audio signature. And if you've bought the LP second-hand, its aural imperfections are a testament to somebody else's close devotion to the same music.
A two-step process accelerates isolation of actual leak sounds: the frequency analysis shows the center frequency of the true leak sound, and frequency filtering allows the user to selectively filter any unwanted frequency, highlighting the audio signature of the actual leak.
It is ideal for day and night covert surveillance and facilities inspection having no visual or audio signature at distances greater than 500 metres.