Electrical audio signal processing systems and devices – Binaural and stereophonic – Quadrasonic
Reexamination Certificate
2011-06-14
2011-06-14
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Binaural and stereophonic
Quadrasonic
C381S022000, C381S002000, C381S003000, C381S006000, C381S014000, C381S015000, C381S016000, C381S017000
Reexamination Certificate
active
07961890
ABSTRACT:
A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a coherence information, describing the coherence between a first and a second channel, is derived within a hierarchical encoding process only for channel pairs including a first channel having only information of a left side with respect to a listening position and including a second channel having only information from a right side with respect to a listening position. As within the hierarchical process the multiple audio channels of the audio signal are downmixed iteratively into monophonic channels, one can pick the relevant parameters from an encoding step involving only channel pairs carrying the information needed to describe the spatial properties of the multi-channel audio signal.
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English translation of the Decision on Grant received on Apr. 3, 2009.
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Breebaart Jeroen
Engdegard Jonas
Herre Jürgen
Hölzer Andreas
Kjörling Kristofer
Chin Vivian
Coding Technologies AB
Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung
Greenberg Laurence A.
Kim Paul
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