Patent ID: 8532999

Claim:
A spatial audio encoder, comprising: an apparatus for generating a multi-channel synthesizer control signal, the apparatus including: a signal analyzer for analyzing a multi-channel input signal; a smoothing information calculator for determining smoothing control information in response to the signal analyzer, the smoothing information calculator being operative to determine the smoothing control information such that, in response to the smoothing control information, a synthesizer-side post-processor generates a post-processed reconstruction parameter or a post-processed quantity derived from the reconstruction parameter for a time portion of an input signal to be processed; and a data generator for generating a control signal representing the smoothing control information as the multi-channel synthesizer control signal; a downmixer configured for generating a downmix signal from the multi-channel input signal; and a spatial parameter extraction device for extracting spatial parameters from the multi-channel input signal, wherein the spatial audio encoder is configured for transmitting or storing the downmix signal, the spatial parameters and the multi-channel synthesizer control signal.