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. 30, 1997
Filed:
Sep. 12, 1995
Naoto Iwahashi, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A parameter converting method and a speech synthesizing method for synthesizing speech with a voice quality similar to that of an input voice includes a parameter converting function constituted of a weighting function for setting weighting coefficients on an input sound spectrum parameter space and a plurality of sub-converting functions. Conversion outputs of the respective sub-converting functions are given weighting coefficients such that the sum of the weighted conversion outputs is used as the parameter converting function to convert M sound spectrum parameter to a single sound spectrum parameter. In this way, the freedom of adaptation with respect to the parameter converting function can be more properly set, so that the parameter converting function can provide an accuracy in accordance with an amount of speech data inputted for learning. It is therefore possible to provide a sound spectrum parameter for generating a voice quality much closer to that of an input voice.