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. 12, 2018
Applicant:
Alibaba Group Holding Limited, George Town, KY;
Inventor:
Zhijun Du, Hangzhou, CN;
Assignee:
Alibaba Group Holding Limited, George Town, Grand Cayman, KY;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 25/21 (2013.01); G10L 21/0232 (2013.01); G10L 25/51 (2013.01); G10L 21/0324 (2013.01); G10L 21/0216 (2013.01); G10L 25/78 (2013.01);
U.S. Cl.
CPC ...
G10L 25/21 (2013.01); G10L 21/0232 (2013.01); G10L 21/0324 (2013.01); G10L 25/51 (2013.01); G10L 2021/02168 (2013.01); G10L 2025/783 (2013.01);
Abstract
Methods, systems, and computer-readable storage media for voice denoising. Implementations include actions of performing a mathematical transform on each frame signal in an audio signal segment to generate multiple power spectra. Each power spectrum corresponds to a respective frame signal. Power value variances corresponding to frame signals at various frequencies are determined. A noise signal is identified in each frame signal based on the power value variance. The identified noise signal is removed from each frame signal of the plurality of frame signals.