Third International Conference on Spoken Language Processing (ICSLP 94)

Yokohama, Japan
September 18-22, 1994

Control of a Klatt Synthesizer by Articulatory Parameters

Kenneth N. Stevens (1,2), Corine A. Bickley (1,2), David R. Williams (2)

(1) Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Cambridge, MA, USA
(2) Sensimetrics Corporation, Cambridge, MA, USA

The movements of the articulators during speech production perform two functions: (1) to generate sources in the vicinity of constrictions within the airway, and (2) to shape the vocal tract to filter these sources. In an articulatory synthesizer, these two functions are automatic consequences of the movements and states of the articulators, whereas in a formant synthesizer such as a Klatt synthesizer control of the sources and of the filtering are performed independently. This paper describes an attempt to combine the simplicity of control based on articulatory parameters with the demonstrated capability of a formant synthesizer for generating natural-sounding and intelligible speech. A set of higher-level parameters related to articulation is selected, and these parameters are mapped into a larger set of acoustically-based parameters that control the Klatt synthesizer. Strategies for generating these parameters from a linguistic description of an utterance are described.

Full Paper

Bibliographic reference.  Stevens, Kenneth N. / Bickley, Corine A. / Williams, David R. (1994): "Control of a klatt synthesizer by articulatory parameters", In ICSLP-1994, 183-186.