US 12,238,505 B2
Audio system with dynamic target listening spot and ambient object interference cancelation
Kai-Hsiang Chou, Hsinchu (TW)
Assigned to REALTEK SEMICONDUCTOR CORP., Hsinchu (TW)
Filed by Realtek Semiconductor Corp., Hsinchu (TW)
Filed on Nov. 23, 2022, as Appl. No. 17/993,493.
Claims priority of provisional application 63/321,770, filed on Mar. 20, 2022.
Claims priority of provisional application 63/287,986, filed on Dec. 10, 2021.
Claims priority of application No. 111130513 (TW), filed on Aug. 13, 2022.
Prior Publication US 2023/0199422 A1, Jun. 22, 2023
Int. Cl. H04S 7/00 (2006.01); G06F 3/01 (2006.01); G06F 3/16 (2006.01); G06T 7/70 (2017.01); H04R 3/12 (2006.01)
CPC H04S 7/303 (2013.01) [G06F 3/011 (2013.01); G06F 3/165 (2013.01); G06T 7/70 (2017.01); H04R 3/12 (2013.01); G06T 2207/10048 (2013.01); H04R 2430/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An audio system arranged to dynamically optimize playback effects according to a user position, comprising:
a sensor circuit, arranged to dynamically sense a target space to generate field context information;
a first speaker and a second speaker, arranged to play sound;
a host device, coupled to the sensor circuit, the first speaker and the second speaker, comprising:
a recognizer circuit, arranged to identify a user from the field context information and determine the user position in the target space;
a control circuit, coupled to the recognizer circuit, arranged to dynamically assign the user position as a target listening spot; and
an audio transmission circuit, coupled to the control circuit, the first speaker and the second speaker, arranged to transmit audio signals;
wherein, the sensor circuit comprises a camera, arranged to capture an ambient image of the target space;
wherein, the recognizer circuit analyzes the ambient image to obtain spatial configuration information and acoustic attribute information of an ambient object in the target space;
wherein, the control circuit maps the target space to an object-based space, and accordingly generates a compensatory audio object in the object-based space based on the ambient object;
wherein, metadata of the compensatory audio object comprises: the spatial configuration information and the acoustic attribute information of the ambient object;
wherein, the control circuit performs an object-based compensation operation based on the target listening spot and the metadata, to cancel interferences imposed on the target listening spot caused by the ambient object and generate a first channel audio signal and a second channel audio signal optimized for the target listening spot; and
wherein, the control circuit respectively outputs the first channel audio signal and the second channel audio signal through the audio transmission circuit to the first speaker and the second speaker.