Patent ID: 11929084
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. An audio decoder for decoding an encoded audio signal comprising a first encoded audio signal portion and a second encoded audio signal portion to obtain a decoded audio signal, comprising:
a first decoding processor configured for decoding the first encoded audio signal portion in a frequency domain to obtain a decoded time domain first audio signal portion;
a second decoding processor configured for decoding the second encoded audio signal portion in the time domain to acquire a decoded time domain second audio signal portion having a low band and a high band; and
a combiner configured for combining the decoded time domain first audio signal portion and the decoded time domain second audio signal portion to acquire the decoded audio signal,
wherein the first decoding processor comprises:
a spectral decoder configured for decoding first spectral portions with a high spectral resolution and for synthesizing second spectral portions using a parametric representation of the second spectral portions and at least a decoded first spectral portion to acquire a decoded spectral representation, wherein the spectral decoder is configured to generate the decoded spectral representation so that a first spectral portion is placed with respect to frequency between two second spectral portions; and
a frequency-time converter configured for converting the decoded spectral representation into a time domain to acquire a decoded time domain first audio signal portion.