TY - JFULL AU - Zdenek Krnoul PY - 2009/8/ TI - Effect of Visual Speech in Sign Speech Synthesis T2 - International Journal of Computer and Information Engineering SP - 1670 EP - 1676 VL - 3 SN - 1307-6892 UR - https://publications.waset.org/pdf/4362 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 31, 2009 N2 - This article investigates a contribution of synthesized visual speech. Synthesis of visual speech expressed by a computer consists in an animation in particular movements of lips. Visual speech is also necessary part of the non-manual component of a sign language. Appropriate methodology is proposed to determine the quality and the accuracy of synthesized visual speech. Proposed methodology is inspected on Czech speech. Hence, this article presents a procedure of recording of speech data in order to set a synthesis system as well as to evaluate synthesized speech. Furthermore, one option of the evaluation process is elaborated in the form of a perceptual test. This test procedure is verified on the measured data with two settings of the synthesis system. The results of the perceptual test are presented as a statistically significant increase of intelligibility evoked by real and synthesized visual speech. Now, the aim is to show one part of evaluation process which leads to more comprehensive evaluation of the sign speech synthesis system. ER -