发明名称 |
Parametric coding of the stereo image of an audio signal |
摘要 |
<p>A synthesizer for generating a decorrelation signal using an input signal is operative on a plurality of subband signals, wherein a subband signal includes a sequence of at least two subband samples, the sequence of the subband samples representing a bandwidth of the subband signal, which is smaller than a bandwidth of the input signal. The synthesizer includes a filter stage (201) for filtering each subband signal using a reverberation filter to obtain a plurality of reverberated subband signals, wherein a plurality of reverberated subband signals together represent the decorrelation signal. This decorrelation signal is used for reconstructing a signal based on a parametrically encoded stereo signal consisting of a mono signal and a coherence measure.</p> |
申请公布号 |
EP1768454(B1) |
申请公布日期 |
2013.06.12 |
申请号 |
EP20060026639 |
申请日期 |
2004.04.30 |
申请人 |
DOLBY INTERNATIONAL AB |
发明人 |
ENGDEGARD, JONAS;VILLEMOES, LARS |
分类号 |
H04S3/00;G10L19/00;G10L19/008;G10L19/02;H03H17/02;H04S5/00 |
主分类号 |
H04S3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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