Patent Number: 7,043,424

Title: Pitch mark determination using a fundamental frequency based adaptable filter

Abstract: A method of pitch mark determination for a speech includes the following steps. First, a fundamental frequency and fundamental frequency passband signals are acquired by using an adaptable filter. Then, a number of passing zero positions of the fundamental frequency passband signals are detected. After that, at least a candidate set of pitch marks from a number of passing zero positions are generated. Lastly, the candidate set of pitch marks is estimated to generate the best set of pitch marks.

Inventors: Chen; Jau-Hung (Hsinchu, TW), Kao; Yung-An (Taipei, TW)

Assignee: Industrial Technology Research Institute

International Classification: G10L 11/04 (20060101)

Expiration Date: 5/09/02018