Audio Encoder For Encoding A Multichannel Signal And Audio Decoder For Decoding An Encoded Audio Signal

Abstract: A schematic block diagram of an audio encoder (2) for encoding a multichannel audio signal (4) is shown. The audio encoder comprises a linear prediction domain encoder (6), a frequency domain encoder (8), and a controller (10) for switching between the linear prediction domain encoder (6) and the frequency domain encoder (8). The controller is configured such that a portion of the multichannel signal is represented either by an encoded frame of the linear prediction domain encoder or by an encoded frame of the frequency domain encoder. The linear prediction domain encoder comprises a downmixer (12) for downmixing the multichannel signal (4) to obtain a downmixed signal (14). The linear prediction domain encoder further comprises a linear prediction domain core encoder (16) for encoding the downmix signal and furthermore, the linear prediction domain encoder comprises a first joint multichannel encoder (18) for generating first multichannel information (20) from the multichannel signal (4).

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