US 12,225,369 B2
Adaptive sound image width enhancement
Oliver Scheuregger, Valby (DK); and Lyle Bruce Clarke, Lunderskov (DK)
Assigned to Bang & Olufsen A/S, Struer (DK)
Filed by Bang & Olufsen A/S, Struer (DK)
Filed on Nov. 11, 2022, as Appl. No. 18/054,652.
Prior Publication US 2024/0163626 A1, May 16, 2024
Int. Cl. H04S 7/00 (2006.01)
CPC H04S 7/302 (2013.01) [H04S 2400/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of adaptively correcting sound image width, the method comprising:
obtaining an audio signal, wherein the audio signal is associated with one or more audio channels, and wherein each of the one or more audio channels is associated with a position of an audio source with respect to a reference point within a local reproduction system;
decomposing the audio signal into a mid signal component, a side signal component, and an unprocessed signal component;
applying respective correction gains to each of the mid signal component, the side signal component, and the unprocessed signal component, wherein the respective correction gains are based on a physical distance between a first loudspeaker and a second loudspeaker within the local reproduction system; and
rendering, after applying the respective correction gains, the mid signal component, the side signal component, and the unprocessed signal component to the first loudspeaker and the second loudspeaker.