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Advanced processing based on a filter bank with complex exponential modulation and adaptive time signaling methods
Advanced processing based on a filter bank with complex exponential modulation and adaptive time signaling methods
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机译:基于具有复杂指数调制和自适应时间信令方法的滤波器组的高级处理
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摘要
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.
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