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:
Aug. 13, 2019
Filed:
Feb. 22, 2018
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Henry Chen, Edinburgh, GB;
Cirrus Logic, Inc., Austin, TX (US);
Abstract
A method of processing stereophonic audio content received in a first audio channel to be output to a first speaker and a second audio channel to be output to a second speaker, the method comprising: receiving the first and second audio channels; identifying a plurality of frequency sub-bands in the first audio channel; for each of the plurality of frequency sub-bands, determining an importance weighting based on a degree of audibility of the sub-band when combined with the remainder of sub-bands of the first audio channel and the second audio channel; on determining that a peak amplitude of the first audio channel is above a first clipping threshold, iteratively suppressing the sub-band of least importance in the first audio signal until the peak amplitude of the first audio signal is below the first clipping threshold; and outputting the suppressed first audio channel.