14th International Congress of Phonetic Sciences (ICPhS-14)

San Francisco, CA, USA
August 1-7, 1999

A Note of Difference Limen for Articulatory Parameters

Qiguang Lin, Yanli Han

CAIP Center, Rutgers University, NJ, USA

This paper presents preliminary results on difference limen for articulatory parameters. An articulatory based speech synthesizer, TRACTTALK, is utilized to generate speech stimuli. Each time only one articulatory parameter is altered by a small amount. The synthetic speech is then randomized and presented to a group of listeners in the AB form. As expected, the results show that not all small changes in articulatory parameters are perceptually noticeable. The observed perceptual limen for articulatory parameters is comparable to that for acoustic parameters. The results have been used to guide the parameter optimization step in a voice mimic system. It is hoped that these results can also be useful for understanding required accuracies when coding or storing articulatory parameters, and when processing vocal-tract imaging data.

Full Paper

Bibliographic reference.  Lin, Qiguang / Han, Yanli (1999): "A note of difference limen for articulatory parameters", In ICPhS-14, 703-706.