Patent ID: 11881225
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. An audio decoder for decoding an encoded audio signal comprising a core encoded signal, bandwidth extension parameters, and multichannel information, the audio decoder comprising:
a linear prediction domain core decoder for decoding the core encoded signal to generate a mono signal;
an analysis filterbank to convert the mono signal into a spectral representation being partitioned into non-uniform parameter bands;
a multichannel decoder for generating a first channel spectrum and a second channel spectrum from the spectral representation of the mono signal and the multichannel information; and
a synthesis filterbank processor for synthesis filtering the first channel spectrum to acquire a first channel signal and for synthesis filtering the second channel spectrum to acquire a second channel signal.