	US 12,238,506 B2
	Method and system for handling local transitions between listening positions in a virtual reality environment
Leon Terentiv, Erlangen (DE); Christof Fersch, Neumarkt (DE); and Daniel Fischer, Fuerth (DE)
Assigned to DOLBY INTERNATIONAL AB, Dublin (IE)
Filed by DOLBY INTERNATIONAL AB, Dublin (IE)
Filed on Jul. 13, 2023, as Appl. No. 18/352,115.
Application 18/352,115 is a continuation of application No. 17/461,341, filed on Aug. 30, 2021, granted, now 11,743,672.
Application 17/461,341 is a continuation of application No. 16/954,301, granted, now 11,109,178, issued on Aug. 31, 2021, previously published as PCT/EP2018/085639, filed on Dec. 18, 2018.
Claims priority of provisional application 62/599,848, filed on Dec. 18, 2017.
Claims priority of application No. 17208087 (EP), filed on Dec. 18, 2017.
Prior Publication US 2023/0362575 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04S 7/00 (2006.01); H04S 3/00 (2006.01)

CPC H04S 7/303 (2013.01) [H04S 3/008 (2013.01); H04S 2400/01 (2013.01); H04S 2400/11 (2013.01); H04S 2400/13 (2013.01)]

12 Claims

1. A method for rendering an audio signal in a virtual reality rendering environment, the method comprising,

determining an origin audio signal of an audio source from an origin source position on an origin unit sphere around an origin listening position of a listener;

receiving an indication of a movement of the listener from the origin listening position to a destination listening position;

determining a destination source position of the audio source on a destination unit sphere around the destination listening position based on the origin source position;

determining a destination audio signal of the audio source based on the origin audio signal; and

rendering the destination audio signal of the audio source from the destination source position on the destination unit sphere around the destination listening position, wherein the origin source position is projected from the origin unit sphere onto the destination unit sphere based on a perspective projection with respect to the destination listening position.