First European Conference on Speech Communication and Technology

Paris, France
September 27-29, 1989

Simulation of the Psycho-Acoustical Vowel Space for Linguistic Applications

Antti Iivonen, Raima Toivonen

Department of Phonetics, University of Helsinki, Helsinki, Finland

Despite of the the remarks concerning the perceptual formant integration and some other factors, it is assumed that an F1/F2-plot based on Bark-scale, in which the vowel points can be plotted according to a continuous scale, is capable to show in the most cases the psycho-acoustical vowel differences concerning the features front/hack, close/open, and rounded/ unrounded (with some consideration also tense/lax). About 5 0 vowel symbols have been used for the description of the vowel systems of the world. About the same number of 1 Bark sized circles have room on the physiologically possible F1/F2-space, This number seems to be near the general F1/F2 vowel resolution. Different scales of the F1/F2-plot for the psycho-acoustical simulation, exemplified by German vowel material, are compared with each other: full logarithmic (A), linear up to 510 Hz, logarithmic above 510 Hz (B); technical mel-scale (C), F1/F2- plot (D).

Full Paper

Bibliographic reference.  Iivonen, Antti / Toivonen, Raima (1989): "Simulation of the psycho-acoustical vowel space for linguistic applications", In EUROSPEECH-1989, 2289-2292.