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:
Feb. 07, 2023
Filed:
Jul. 30, 2021
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Pablo Francisco Faundez Hoffmann, Kenmore, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
A system reduces sound coloration caused by rendering of a 3D audio signal. The system renders the 3D audio signal including a plurality of channels using the input audio signal. Input spectra data defining spectral information of the input audio signal is computed. 3D spectra data defining spectral information of a single channel representation of the 3D audio signal is computed. The system generates a tonal balance filter based on the input spectral data and the 3D spectral data. The tonal balance filter, when applied to the 3D audio signal, reduces sound coloration caused by the rendering of the 3D audio signal. The tonal balance filter is applied to the 3D audio signal to generate an output audio signal and the output audio signal is presented via a speaker array.