JongKuk Kim and HernSoo Hahn and Uei-Joong Yoo and MyungJin Bae
On a Pitch Duration Technique for Prosody Control
1858 - 1861
2008
2
9
International Journal of Electrical and Computer Engineering
https://publications.waset.org/pdf/1485
https://publications.waset.org/vol/21
World Academy of Science, Engineering and Technology
In this paper, we propose a method of alter duration in
frequency domain that control prosody in real time after pitch
alteration. If there has a method to alteration duration freely among
prosody information, that may used in several fields such as speech
impediment person&039;s pronunciation proof reading or language study.
The pitch alteration method used control prosody altered by PSOLA
synthesis method which is in time domain processing method.
However, the duration of pitch alteration speech is changed by the
frequency domain. In this paper, we altered the duration with the
method of duration alteration by Fast Fourier Transformation in
frequency domain. Consequently, the intelligibility of the pitch and
duration are controlled has a slight decrease than the case when only
pitch is changed, but the proposed algorithm obtained the higher MOS
score about naturalness.
Open Science Index 21, 2008