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Sound-Stream Ii: Towards Real-Time Gesture-Controlled Articulatory Sound Synthesis

Pramit Saha, Debasish Ray Mohapatra, Praneeth SV, Sidney Fels

Abstract


We present an interface involving four degrees-of-freedom (DOF) mechanical control of a two dimensional, mid-sagittal tongue through a biomechanical toolkit called ArtiSynth and a sound synthesis engine called JASS towards artic-ulatory sound synthesis. As a demonstration of the project, the user will learn to produce a range of JASS vocal sounds, by varying the shape and position of the ArtiSynth tongue in 2D space through a set of four force-based sensors. In otherwords, the user will be able to physically play around with these four sensors, thereby virtually controlling the magnitude of four selected muscle excitations of the tongue to vary articulatory structure. This variation is computed in terms of ‘Area Functions’ in ArtiSynth environment and communicated to the JASS based audio-synthesizer coupled with two-mass glottal excitation model to complete this end-to-end gesture-to-sound mapping.

Keywords


Articulatory speech synthesizer; voice controller; intrinsic and extrinsic tongue muscles; force-based controller; gesture-to-muscle activation; Sound Stream

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