Abstract: Binaural rendering a multi-channel audio signal into a binaural output signal is described. The multi-channel audio signal has a stereo downmix signal into which a plurality of audio signals are downmixed, and side information having a downmix information, as well as object level information of the plurality of audio signals and inter-object cross correlation information. Based on a first rendering prescription, a preliminary binaural signal is computed from the first and second channels of the stereo downmix signal. A decorrelated signal is generated as an perceptual equivalent to a mono downmix of the first and second channels of the stereo downmix signal being, however, decorrelated to the mono downmix. Depending on a second rendering prescription, a corrective binaural signal is computed from the decorrelated signal and the preliminary binaural signal is mixed with the corrective binaural signal to obtain the binaural output signal.
Type:
Grant
Filed:
April 6, 2011
Date of Patent:
December 4, 2012
Assignees:
Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V., Koninklijke Philips Electronics, Dolby Sweden AG
Inventors:
Jeroen Koppens, Harald Mundt, Leonid Terentiev, Cornelia Falch, Johannes Hilpert, Oliver Hellmuth, Lars Villemoes, Jan Plogsties, Jeroen Breebaart, Jonas Engdegard