US 12,035,129 B2
Method and apparatus for rendering acoustic signal, and computer-readable recording medium
Sang-bae Chon, Suwon-si (KR); Sun-min Kim, Yongin-si (KR); and Hyun Jo, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 15, 2022, as Appl. No. 17/841,380.
Application 17/841,380 is a continuation of application No. 15/129,218, abandoned, previously published as PCT/KR2015/002891, filed on Mar. 24, 2015.
Claims priority of provisional application 61/969,357, filed on Mar. 24, 2014.
Prior Publication US 2022/0322026 A1, Oct. 6, 2022
Int. Cl. H04S 7/00 (2006.01); G10L 19/008 (2013.01); H04S 3/00 (2006.01)
CPC H04S 7/308 (2013.01) [G10L 19/008 (2013.01); H04S 3/002 (2013.01); H04S 3/008 (2013.01); H04S 2400/01 (2013.01); H04S 2400/03 (2013.01); H04S 2400/11 (2013.01); H04S 2400/13 (2013.01); H04S 2420/01 (2013.01); H04S 2420/03 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A method of rendering an audio signal, the method comprising:
receiving multi-channel signals including a height input channel signal, wherein the multi-channel signals include a first audio scene and a second audio scene, the first audio scene including a general sound and the second audio scene including an applause sound;
identifying an input channel layout of the multi-channel signals and an output channel layout of a plurality of output channel signals, wherein the output channel layout is a 5.1 channel layout;
obtaining a panning gain for the height input channel signal based on a standard loudspeaker position;
obtaining a filter coefficient for the height input channel signal based on the standard loudspeaker position, wherein the standard loudspeaker position is defined as in the output channel layout, and the panning gain and the filter coefficient are applied to a spatial elevation rendering;
obtaining deviation information between an actual loudspeaker position and the standard loudspeaker position, wherein the deviation information indicates a difference between the actual loudspeaker position and the standard loudspeaker position, the deviation information includes an elevation deviation;
modifying the obtained panning gain based on the elevation deviation and an elevation of the standard loudspeaker position, to locate a sound image of the height input channel signal at a center position;
normalizing the modified panning gain;
modifying the filter coefficient to bypass, when the elevation deviation is larger than an predetermined value; and
rendering the multi-channel signals including the height input channel signal to the plurality of output channel signals,
wherein the first audio scene of the multi-channel signals is rendered by the spatial elevation rendering for a 3D sound based on the normalized panning gain and the modified filter coefficient, and the second audio scene of the multi-channel signals is rendered by a timber elevation rendering for a 2D sound.