Sixth International Conference on Spoken Language Processing
October 16-20, 2000
A Method for Automatic Extraction of Parameters of the Fundamental Frequency Contour
Shuichi Narusawa (1), Hiroya Fujisaki (1), Sumio Ohno (2)
(1) Science University of Tokyo,
(2) Tokyo University of Technology, Japan
The process of generating an F0 contour has been modeled quite
accurately in mathematical terms by Fujisaki and his coworkers,
but the derivation of the underlying commands from an observed
F0 contour is an inverse problem that cannot be solved analytically.
Although it can be solved by successive approximation, a good
first-order approximation is necessary to guarantee an efficient
and accurate search for the optimum solution. The present
paper describes a method for pre-processing an observed F0
contour to obtain a smooth contour, from which a good first-order
approximation can be analytically obtained. Experimental results
show that correct extraction rates for the accent and the phrase
commands are about 90% and 79%, respectively.
Narusawa, Shuichi / Fujisaki, Hiroya / Ohno, Sumio (2000):
"A method for automatic extraction of parameters of the fundamental frequency contour",
In ICSLP-2000, vol.1, 649-652.