发明名称 |
MDCT-BASED COMPLEX PREDICTION STEREO CODING |
摘要 |
The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. In one embodiment, a decoding method, for obtaining an output stereo signal from an input stereo signal encoded by complex prediction coding and comprising first frequency-domain representations of two input channels, comprises the upmixing steps of: (i) computing a second frequency-domain representation of a first input channel; and (ii) computing an output channel on the basis of the first and second frequency-domain representations of the first input channel, the first frequency-domain representation of the second input channel and a complex prediction coefficient. The method comprises performing frequency-domain modifications selectively before or after upmixing. |
申请公布号 |
CA2921437(A1) |
申请公布日期 |
2011.10.13 |
申请号 |
CA20112921437 |
申请日期 |
2011.04.06 |
申请人 |
DOLBY INTERNATIONAL AB |
发明人 |
PURNHAGEN, HEIKO;CARLSSON, PONTUS;VILLEMOES, LARS |
分类号 |
G10L19/008;G10L19/00;G10L19/02 |
主分类号 |
G10L19/008 |
代理机构 |
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代理人 |
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