RATE-DISTORTION OPTIMIZATION FOR MULTICHANNEL AUDIO COMPRESSION

被引：0

作者：

Li, Minyue ^{[1
]}

Skoglund, Jan ^{[1
]}

Kleijn, W. Bastiaan ^{[1
,2
]}

机构：

[1] Google Inc, Mountain View, CA 94043 USA

[2] Victoria Univ Wellington, Sch Engn & Comp Sci, Wellington, New Zealand

来源：

2013 IEEE WORKSHOP ON APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS (WASPAA) | 2013年

关键词：

rate-distortion theory; multichannel audio coding; rate allocation; TRANSFORM;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Multichannel audio coding is studied from a rate-distortion theoretical viewpoint. Two practical coding techniques, both of which are based on rate-distortion optimization, are also proposed. The first technique decorrelates a multichannel signal hierarchically using elementary unitary transforms. The second method rearranges a multichannel signal into sub-signals and compresses them at optimized bit rates using a conventional codec. Both objective and subjective tests were conducted to illustrate the efficiency of the methods.

引用

页数：4

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