US 11,671,779 B2
Reverberation generation for headphone virtualization
Louis D. Fielder, Millbrae, CA (US); Zhiwei Shuang, Beijing (CN); Grant A. Davidson, Burlingame, CA (US); Xiguang Zheng, Beijing (CN); and Mark S. Vinton, Alameda, CA (US)
Assigned to DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US)
Filed by DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US)
Filed on Oct. 4, 2021, as Appl. No. 17/492,683.
Application 17/492,683 is a division of application No. 16/986,308, filed on Aug. 6, 2020, granted, now 11,140,501.
Application 16/986,308 is a continuation of application No. 16/510,849, filed on Jul. 12, 2019, granted, now 10,750,306, issued on Aug. 18, 2020.
Application 16/510,849 is a continuation of application No. 16/163,863, filed on Oct. 18, 2018, granted, now 10,382,875, issued on Aug. 13, 2019.
Application 16/163,863 is a continuation of application No. 15/550,424, granted, now 10,149,082, issued on Dec. 4, 2018, previously published as PCT/US2016/017594, filed on Feb. 11, 2016.
Claims priority of provisional application 62/117,206, filed on Feb. 17, 2015.
Claims priority of application No. 201510077020.3 (CN), filed on Feb. 12, 2015; and application No. 201610081281.7 (CN), filed on Feb. 5, 2016.
Prior Publication US 2022/0103959 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04S 3/00 (2006.01); H04S 7/00 (2006.01); H04S 5/00 (2006.01); G10K 15/08 (2006.01)
CPC H04S 3/004 (2013.01) [G10K 15/08 (2013.01); H04S 5/005 (2013.01); H04S 7/302 (2013.01); H04S 7/304 (2013.01); H04S 2400/01 (2013.01); H04S 2420/01 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of generating left-ear and right-ear binaural signals, the method comprising:
determining a sound source location corresponding to each of one or more audio input signals;
convolving each of said one or more audio input signals with one or more components of a BRIR corresponding to the sound source location to obtain left-ear and right-ear intermediate signals, wherein at least one of said components of the BRIR comprises directionally-controlled reflections that impart a particular perceptual cue to said one or more audio input signals respectively, the particular perceptual cure being selected from a plurality of perceptual cues, wherein the directionally controlled reflections are generated using a directional pattern which describes how directions of arrival of the directionally-controlled reflections change in relation to a direction of the sound source location as a function of time; and
combining the left-ear intermediate signals to produce the left-ear binaural signal and combining the right-ear intermediate signals to produce the right-ear binaural signal.