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- W2100065139 abstract "This paper examines a new method for coding high quality digital audio signals based on a combination of linear predictive coding (LPC) and the discrete wavelet transform (DWT). In this method, a linear predictor is first used to model each audio frame. Then, the prediction error is analyzed using the DWT. The LPC coefficients and DWT coefficients are quantized using a novel bit allocation scheme which minimizes the overall quantization error with respect to the masking threshold. The proposed coder is capable of delivering near-transparent audio signal quality at encoding bit rates of around 90-96 kb/s. Objective and subjective results suggest that the proposed coder operating at 90-96 kb/s has a performance comparable to that of the MPEG layer II codec operating at 128 kb/s." @default.
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- W2100065139 date "2002-11-23" @default.
- W2100065139 modified "2023-09-27" @default.
- W2100065139 title "A new hybrid LPC-DWT algorithm for high quality audio coding" @default.
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- W2100065139 doi "https://doi.org/10.1109/tencon.1997.648531" @default.
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