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. 13, 2016
Filed:
Jul. 21, 2014
Applicant:
Arkamys, Paris, FR;
Inventors:
Assignee:
ARKAMYS, Paris, FR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/20 (2006.01); H04R 29/00 (2006.01); H03G 3/00 (2006.01); H04B 15/00 (2006.01); G10L 19/06 (2013.01); G10L 21/02 (2013.01); G10K 11/00 (2006.01); G10L 19/02 (2013.01); G10L 21/0208 (2013.01);
U.S. Cl.
CPC ...
G10L 19/06 (2013.01); G10K 11/002 (2013.01); G10L 19/0212 (2013.01); G10L 21/02 (2013.01); G10L 2021/02082 (2013.01);
Abstract
A method for suppressing the late reverberation of an audio signal. A plurality of prediction vectors are calculated. A plurality of observation vectors from the modulus of the complex time-frequency transform of an input signal is generated. A plurality of synthesis dictionaries from the plurality of observation vectors are constructed. A late reverberation spectrum from the plurality of synthesis dictionaries and the plurality of prediction vectors are estimated. A plurality of observation vectors are filtered to eliminate the late reverberation spectrum and obtain a dereverberated signal modulus.