psychoacoustic model


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psychoacoustic model

The compression of digital music by removing sounds that are considered unheard by the human ear. See subband coding, perceptual audio coding and psychoacoustics.
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The decomposition tree structure of PWPT is designed to approximate the critical bands (CB) as close as possible in order to efficiently match the psychoacoustic model [12] [13].
The NEM codec is the first audio compression software based on state-of-the-art neurological models of hearing, rather than the legacy psychoacoustic model.
Includes algorithms that filter out noises normally transmitted or received during phone conversations, and an adaptive audibility enhancer that dynamically maintains audibility and intelligibility by using a psychoacoustic model to automatically adjust volume for optimal listening comfort.
They also explored other methods focused on masking the musical noise using psychoacoustic models [6]; results obtained by using these algorithms show that there is a need for further improvement in the radar speech enhancement algorithm, especially at a very low SNR condition (SNR < 10 dB).
thesis, titled "An embedded and scalable audio compression scheme using Wavelets and improved psychoacoustic models," and his additional research interests are in the field of lossless audio compression and watermarking of audio signals.