US 11,894,003 B2
Reconstruction of audio scenes from a downmix
Toni Hirvonen, Helsinki (FI); Heiko Purnhagen, Sundbyberg (SE); Leif Jonas Samuelsson, Sundbyberg (SE); and Lars Villemoes, Jarfalla (SE)
Assigned to DOLBY INTERNATIONAL AB, Dublin (IE)
Filed by DOLBY INTERNATIONAL AB, Dublin (IE)
Filed on Feb. 10, 2023, as Appl. No. 18/167,204.
Application 17/219,911 is a division of application No. 16/380,879, filed on Apr. 10, 2019, granted, now 10,971,163, issued on Apr. 6, 2021.
Application 18/167,204 is a continuation of application No. 17/219,911, filed on Apr. 1, 2021, granted, now 11,580,995.
Application 16/380,879 is a continuation of application No. 15/584,553, filed on May 2, 2017, granted, now 10,290,304, issued on May 14, 2019.
Application 15/584,553 is a continuation of application No. 14/893,377, granted, now 9,666,198, issued on May 30, 2017, previously published as PCT/EP2014/060732, filed on May 23, 2014.
Claims priority of provisional application 61/827,469, filed on May 24, 2013.
Prior Publication US 2023/0267939 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/00 (2013.01); G10L 19/008 (2013.01); G10L 19/20 (2013.01); H04S 5/00 (2006.01); H04S 7/00 (2006.01); G10L 19/02 (2013.01); G10L 25/06 (2013.01); H04S 3/00 (2006.01); H04S 3/02 (2006.01)
CPC G10L 19/008 (2013.01) [G10L 19/0204 (2013.01); G10L 19/20 (2013.01); G10L 25/06 (2013.01); H04S 3/008 (2013.01); H04S 3/02 (2013.01); H04S 5/00 (2013.01); H04S 7/30 (2013.01); H04S 2400/03 (2013.01); H04S 2400/11 (2013.01); H04S 2420/03 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method for reconstructing a time frame of an audio scene with at least a plurality of N audio signals from a bitstream, the method comprising:
receiving the bitstream comprising the N audio signals signal, wherein N>1;
decoding a downmix signal from the bitstream, the downmix signal comprising M downmix channels, wherein M>1 and each downmix channel is associated with a spatial locator of a plurality of spatial locators; and
reconstructing the N audio signals based on as an inner product of a plurality of correlation coefficients and the downmix signal, wherein the plurality of correlation coefficients correspond to one or more of the plurality of spatial locators.