Integer wavelet transform based lossless audio compression

被引:0
|
作者
Giurcaneanu, CD [1 ]
Tabus, I [1 ]
Astola, J [1 ]
机构
[1] Tampere Univ Technol, Signal Proc Lab, FIN-33101 Tampere, Finland
关键词
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In this paper we propose the use of integer wavelet [2] as a decorrelation stage for adaptive context based lossless audio coding. The original wideband audio signal is first decomposed in wavelet subbands. The resulted coefficients are integer valued and therefore can be transmitted using an adaptive context based method, in a lossless manner, the decoder being able to reconstruct them and afterwords to perfectly restore the audio waveform. Several ways to encode the integer wavelet coefficients are explored and the results are compared with those obtained in fullband contex adaptive coding.
引用
收藏
页码:378 / 382
页数:5
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