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:
Jan. 14, 2020
Filed:
Oct. 30, 2013
Applicant:
Nuance Communications, Inc., Burlington, MA (US);
Inventors:
Assignee:
Cerence Operating Company, Burlington, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H04R 5/027 (2006.01); H04R 3/12 (2006.01); G10L 21/0232 (2013.01); H03G 3/30 (2006.01); H04R 1/32 (2006.01);
U.S. Cl.
CPC ...
H04R 3/005 (2013.01); G10L 21/0232 (2013.01); H03G 3/301 (2013.01); H04R 1/326 (2013.01); H04R 3/12 (2013.01); H04R 5/027 (2013.01); H04R 2499/13 (2013.01);
Abstract
Methods and apparatus for frequency selective signal mixing for speech enhancement. In one embodiment frequency-based channel selection is performed for signal magnitude, signal energy, and noise estimate using speaker activity detection information, signal-to-noise ratio, and/or signal level, Frequency-based channel selection is performed for a dynamic spectral floor to adjust the noise estimate using speaker dominance information. Noise reduction is performed on the signal for the selected channel.