ANALYSE-FILTERBANK, SYNTHESE-FILTERBANK, CODIERER,DECODIERER, MISCHER UND KONFERENZSYSTEM

摘要

An embodiment of mixer (600) for mixing a plurality of input frames, each input frame being a spectral representation of a corresponding time-domain frame and each input frame of the plurality of input frames being provided from a different source, comprises an entropy decoder (610) configured to entropy decode the plurality of input frames, a scaler (630) configured to scaling the plurality of entropy decoded input frames in the frequency domain and configured to obtain a plurality of scaled frames in the frequency domain, each scaled frame corresponding to an entropy decoded input frame, an adder (640) configured to adding up the scaled frames in the frequency domain to generate an added frame in the frequency domain and an entropy encoder (660) configured to entropy encoding the added frame to obtain a mixed frame.