Apparatus and method for efficiently coding plural channels of an acoustic signal at low bit rates
US6345246B1 · kind B1 · utility
19Cited by
26References
74Claims
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Key dates
| Filing date | Feb 3, 1998 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Feb 3, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In multichannel acoustic signal coding and decoding, left- and right-channel signals are alternately interleaved for each sample to generate a one-dimensional signal sample sequence. The one-dimensional signal sample sequence is subjected to coding based on correlation. In coding, the left- and right-channel signals may preferably be interleaved after reducing an imbalance in power between input channels. In such an instance, a power imbalance is introduced between the decoded left- and right-channel signal sample sequences
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