US 12,231,867 B2
Audio processing
Juha Vilkamo, Helsinki (FI); Riitta Väänänen, Helsinki (FI); Sampo Vesa, Helsinki (FI); Mikko-Ville Laitinen, Espoo (FI); and Jussi Virolainen, Espoo (FI)
Assigned to NOKIA TECHNOLOGIES OY, Espoo (FI)
Appl. No. 17/638,393
Filed by NOKIA TECHNOLOGIES OY, Espoo (FI)
PCT Filed Sep. 17, 2020, PCT No. PCT/FI2020/050596
§ 371(c)(1), (2) Date Feb. 25, 2022,
PCT Pub. No. WO2021/058858, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 1913726 (GB), filed on Sep. 24, 2019.
Prior Publication US 2022/0295212 A1, Sep. 15, 2022
Int. Cl. H04S 7/00 (2006.01); H04R 5/04 (2006.01)
CPC H04S 7/302 (2013.01) [H04R 5/04 (2013.01); H04S 2400/09 (2013.01); H04S 2420/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for processing an input audio signal in accordance with spatial metadata so as to play back a spatial audio signal in a device in dependence of at least one sound reproduction characteristic of the device, the method comprising:
obtaining, by the device, said input audio signal;
obtaining, by the device, said spatial metadata, separate from obtaining said input audio signal;
obtaining said at least one sound reproduction characteristic of the device;
rendering, by the device, a first portion of the spatial audio signal using a first type playback procedure applied on the input audio signal in dependence of the spatial metadata, wherein the first portion comprises sound directions within a front region; and
rendering, by the device, a second portion of the spatial audio signal using a second type playback procedure applied on the input audio signal in dependence of the spatial metadata and in dependence of said at least one sound reproduction characteristic, wherein the second portion comprises sound directions that are not included in the first portion and where the second type playback procedure is different from the first type playback procedure and involves cross-talk cancellation processing.