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:
Dec. 06, 2022
Filed:
Sep. 29, 2020
Amazon Technologies, Inc., Seattle, WA (US);
Jean-Marc Valin, Montreal, CA;
Mehmet Umut Isik, Menlo Park, CA (US);
Neerad Dilip Phansalkar, Half Moon Bay, CA (US);
Ritwik Giri, Sunnyvale, CA (US);
Karim Helwani, Mountain View, CA (US);
Arvindh Krishnaswamy, Palo Alo, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Post-filtering may be performed for ratio masks as part of audio enhancement. Audio data may be received. A machine learning model may be applied to generate gain values for different spectrum bands of the audio data. The gain values may then be modified using an envelope post-filter according to a monotonically increasing function applied to the gain values to produce modified gain values used to generate an enhanced version of the audio data.