Feedback considerations for speech training systems

Explores the role of visual feedback of speech information on the development and use of specific speech production skills by a deaf learner. A young deaf female subject received training in which visual feedback of airflow was used to teach the production of a voicing distinction. The results showed that provision of the feedback resulted in improvements in the segments being taught, and that providing the feedback during production resulted in improved performance during some phases of teaching but not during others. The findings have implications on our understanding of speech learning that relies on the use of a visual surrogate for hearing