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. 02, 2012
Filed:
Apr. 03, 2008
Dan Ning Jiang, Beijing, CN;
Fan Ping Meng, Beijing, CN;
Yong Qin, Beijing, CN;
Zhi Wei Shuang, Beijing, CN;
Dan Ning Jiang, Beijing, CN;
Fan Ping Meng, Beijing, CN;
Yong Qin, Beijing, CN;
Zhi Wei Shuang, Beijing, CN;
Nuance Communications, Inc., Burlington, MA (US);
Abstract
The present invention provides a speech analysis method comprising steps of obtaining a speech signal and a corresponding DEGG/EGG signal; regarding the speech signal as the output of a vocal tract filter in a source-filter model taking the DEGG/EGG signal as the input; and estimating the features of the vocal tract filter from the speech signal as the output and the DEGG/EGG signal as the input, wherein the features of the vocal tract filter are expressed by the state vectors of the vocal tract filter at selected time points, and the step of estimating is performed using Kalman filtering.