The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Apr. 08, 2019
Apple Inc., Cupertino, CA (US);
Jonathan D. Sheaffer, Sunnyvale, CA (US);
Juha O. Merimaa, San Mateo, CA (US);
Jason Wung, Culver City, CA (US);
Martin E. Johnson, Los Gatos, CA (US);
Peter A. Raffensperger, Cupertino, CA (US);
Joshua D. Atkins, Los Angeles, CA (US);
Symeon Delikaris Manias, Los Angeles, CA (US);
Mehrez Souden, Los Angeles, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
Processing input audio channels for generating spatial audio can include receiving a plurality of microphone signals that capture a sound field. Each microphone signal can be transformed into a frequency domain signal. From each frequency domain signal, a direct component and a diffuse component can be extracted. The direct component can be processed with a parametric renderer. The diffuse component can be processed with a linear renderer. The components can be combined, resulting in a spatial audio output. The levels of the components can be adjusted to match a direct to diffuse ratio (DDR) of the output with the DDR of the captured sound field. Other aspects are also described and claimed.