Understanding Speech

Reducing Dimensionality

As the dynamics of comlex tissue and muscle arise in precision motor exercises like speech, the need abstract and modularize the mechanics of speech becomes more important.  Furthermore, a large body of work in neurophysiology, biomechanics, and computation has substantiated the view that control of body movements is distributed among a manageable number of degrees of freedom corresponding to neuromuscular modules. In light of this, the idea that the solution to improving our capabilites to accurately synthesis human speech lies within the modularization of speech, too.

Posture and the Oris Orbicularis

The Oris Orbicularis is a complex of muscles that circle the mouth.  They play a prominent role in realizing speech, as many produced sounds depend in some way on the aperture of the mouth.  Similarily, the posture of the jaw is connected to our oral abilites, as the muscles around the mouth are connected at numerous insertions near the jaw.


Exploring the responsibilites and contraints of articulation in speech is done best through simulation - these images show the frequency outputs of different embouchures.

An advanced multibody model used to simulate speech.

Articulatory Speech Synthesis Projects



Picture of Dr. Ian Stavness

Dr. Ian Stavness
Assistant Professor


Picture of Erik Widing

Erik Widing
Phd Student

Picture of Najeeb Khan

Najeeb Khan
PhD Student