Embed Size (px)
Citation preview
CNS Speech LabDept. of Cognitive and Neural Systems
Boston University
Frank Guenther, Ph.DDirector
Modeling the Neural Bases of SpeechCNS Speech Lab Boston University
Our mission: We create neural network models that characterize speech processes.
Projects: The DIVA ModelDIVA, or Directions Into Velocities of Articulators, is a neural network model of speech acquisition and production. Through psychophysical and imaging experiments, we gather information about the nature of speech processing and the mechanisms for speech motor skill acquisition. This information is integrated into the model to create a unified account of a wide range of speech data.
DIVA DemosBabbling
The model produces self-generated speech sounds by randomly varying free parameters and receives auditory feedback, thus learning the relationship between motor actions and their acoustic consequences.
DIVA DemosBabbling
The model produces self-generated speech sounds by randomly varying free parameters and receives auditory feedback, thus learning the relationship between motor actions and their acoustic consequences.
DIVA DemosBabbling
The model produces self-generated speech sounds by randomly varying free parameters and receives auditory feedback, thus learning the relationship between motor actions and their acoustic consequences.
DIVA DemosReduplicated Babbling
When DIVA moves its jaw up and down, its babbling sounds like the beginnings of real speech.
DIVA DemosReduplicated Babbling
When DIVA moves its jaw up and down, its babbling sounds like the beginnings of real speech.
Learning to speak
The first attempt is an approximation of the
utterance “good doggie.”
DIVA Demos
After several iterations, DIVA does a good job of repeating the utterance.
First, DIVA listens to the utterance “good doggie.”
DIVA DemosStuttering
By introducing disruptions in the feedback control, we can use DIVA to study dysfluencies, or errors in speech control, such as those that occur during stuttering.
MGH Center forLaryngeal Surgery and
Voice Rehabilitation
Steven M. Zeitels, M.D., FACS
Robert E. Hillman, Ph.D, CCC-SLP
Director
Co-Director/Research Director
