US 11,750,994 B2
Method for generating binaural signals from stereo signals using upmixing binauralization, and apparatus therefor
Sangbae Chon, Seoul (KR); Byoungjoon Ahn, Gyeonggi-do (KR); Jaesung Choi, Seoul (KR); Hyunoh Oh, Gyeonggi-do (KR); Jeonghun Seo, Seoul (KR); and Taegyu Lee, Seoul (KR)
Assigned to GAUDIO LAB, INC., Seoul (KR)
Filed by GAUDIO LAB, INC., Seoul (KR)
Filed on Nov. 15, 2021, as Appl. No. 17/527,145.
Application 17/527,145 is a continuation of application No. 17/022,065, filed on Sep. 15, 2020, granted, now 11,212,631.
Claims priority of application No. 10-2019-0113428 (KR), filed on Sep. 16, 2019; and application No. 10-2019-0123839 (KR), filed on Oct. 7, 2019.
Prior Publication US 2022/0078570 A1, Mar. 10, 2022
Int. Cl. H04S 1/00 (2006.01); H04S 7/00 (2006.01); H04S 5/00 (2006.01)
CPC H04S 1/002 (2013.01) [H04S 1/007 (2013.01); H04S 7/30 (2013.01); H04S 2420/01 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An audio signal processing method comprising:
receiving a virtual speaker layout,
wherein the virtual speaker layout includes a plurality of virtual speakers,
wherein the virtual speaker layout comprises of a plurality of cone of confusion (COC)s;
obtaining ipsilateral signals on a frequency domain for each of signals of the plurality of virtual speakers;
obtaining contralateral signals on the frequency domain for each of signals of the plurality of virtual speakers;
obtaining a mixed ipsilateral signal by mixing the ipsilateral signals on the frequency domain;
obtaining a plurality of mixed contralateral signals by mixing contralateral signals of virtual speakers located in a same CoC among the contralateral signals on the frequency domain;
obtaining an ipsilateral signal on a time domain by converting the mixed ipsilateral signal;
obtaining a plurality of contralateral signals on the time domain by converting the plurality of mixed contralateral signals; and
obtaining a binaural signal based on the ipsilateral signal on the time domain and the plurality of contralateral signals on the time domain.