Acoustic fingerprint
For acoustic emissions of ships and submarines see acoustic signature. An acoustic fingerprint is a unique code generated from an audio waveform. Depending upon the particular algorithm acoustic fingerprints can be used to automatically categoriz..
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Adaptive Transform Acoustic Coding
Adaptive Transform acoustic Coding ATRAC is a family of proprietary audio compression algorithms developed by Sony. MiniDisc was the first commercial product to incorporate ATRAC in 1992. ATRAC allowed a relatively small disc like MiniDisc to hav..
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Horn speaker
Horn loudspeaker with a sealed box driver mounting A horn speaker is a loudspeaker which uses a horn to increase the overall efficiency of the driving element typically a diaphragm driven by an electromagnet. The horn itself is a passive componen..
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Jecklin Disk
A Jecklin Disk is a sound absorbing disk placed between two microphones to create an acoustic "shadow" from one microphone to the other. The resulting two signals can possibly produce a pleasing stereo effect. Always a matching pair of omnidirect..
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Perceptual Audio Coding
Introduction: . . Perceptual audio coding is a method of encoding audio that uses psychoacoustic models to discard data said to be unable to be perceived by humans. Audio Encoding . . Perceptual Coding Perceptual audio coding is a method of co..
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Psychoacoustics
Psychoacoustics is the study of subjective human perception of sounds. Alternatively it can be described as the study of the psychological correlates of the physical parameters of acoustics. Background . . Hearing is not a purely mechanical phe..
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Sonic artifact
In sound and music production the term sonic artifact or simply artifact refers to sonic material that is usually accidental or unwanted resulting from the editing or manipulation of a sound. Because there are always technical restrictions in the..
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Transparency (data compression)
For other uses of "Transparency" see Transparency disambiguation. In data compression or psychoacoustics transparency is the ideal result of lossy data compression. If a lossily compressed result is perceptually indistinguishable from the uncompr..
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