A warped linear-prediction-based subband audio coding algorithm.

A novel audio coding algorithm is proposed where the warped-linear prediction (WLP) technique is employed to construct a perceptual pre- and post-filter for subband audio coding. A modified signal-to-mask ratio (SMR) calculation is given for subband coding of the WLP residuals of audio signals. The...

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Pubblicato in:	IEEE Transactions on speech and audio processing 10, 1 (2002).
Autore principale:	Rongshan Yu
Natura:	Articolo
Lingua:	English
Soggetti:	56 kbit/s. 64 kbit/s. LPC. MPEG-1 audio Layer II. Audio codec. Audio signals. Bit rate. Frequency response. Linear prediction coding. Masking threshold. Perceptual entropy. Perceptual post-alter. Perceptual pre-filter. Residual signals. Short time estimate. Signal-to-mask ratio. Spectral shape. Subband perceptual entropy. Subjective tests. Transparent subband audio coding. Warped linear prediction. White subband quantization noise.