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Lossless Transform Coding of Audio Signals (1997) [3 citations — 2 self]

by Tilman Liebchen ,  Marcus Purat ,  Peter Noll
Proceedings of the 102nd AES convention, AES preprint 4414
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Abstract:

Recent papers have proposed linear prediction as a useful method for lossless audio coding. Transform coding, however, hasn't been investigated so far, although it seems to be more adapted to the harmonic structure of most audio signals. In this paper we present first results on lossless transform coding of CD-quality audio data. One main aspect lies on a suitable quantization method to obtain perfect reconstruction. Using a codebook with different entropy codes for the transform coefficients we achieve bitrates, slightly better then those obtained by the lossless linear prediction schemes mentioned above. 1 Introduction Lossless audio coding is a topic of high interest for both professional and customer applications. Modern lossy coding standards (e.g. ISO MPEG I+II) can achieve large compression ratios with high subjective quality, however, multiple coding can reveal the originally masked distortion. Anyway, reproducing critical music items shows that even the best systems ...

Citations

98 Signal Processing With Lapped Transforms – Malvar - 1992
14 Simple lossless and near-lossless waveform compression – Robinson, “Shorten - 1994
7 Lossless coding for audio discs – Craven, Gerzon - 1996
4 M.: Lossless Audio Data Compression for Real Time Applications – Cellier, Chênes, et al. - 1993
3 Kerkhof: Lossless Coding for DVD Audio. Presented at 101st AES Convention – Bruekers, Vleuten, et al. - 1996
1 compressor for waveform files, version 2.1. Lossy Coding c c Lossy Decoding y x e Transmission Medium e Lossy Decoding – Robinson