braida@mit.edu

Louis D. Braida, PhD

HST Faculty

Co-Director, Speech and Hearing Bioscience and Technology Doctoral Program, HST
Henry Ellis Warren Professor of Electrical Engineering and Health Sciences and Technology, MIT

Contact Information

617-253-2575

Website

Degrees

PhD in Electrical Engineering, Massachusetts Institute of Technology, 1969
SM in Electrical Engineering, Massachusetts Institute of Technology, 1965
BEE in Electrical Engineering, The Cooper Union, 1964

Selected Awards/Societies

Member, Acoustical Society of America
Eta Kappa Nu, Sigma Xi, Tau Beta Pi
Institute of Electrical and Electronics Engineers (IEEE)
Fellow, National Science Foundation

Research Interests

Professor Braida is internationally known for his research in the areas of intensity perception, the characterization of hearing impairments, and aids for the deaf. Using modern communication theory and computer-based techniques, he studies auditory behavior transcend sensory levels of traditional psychoacoustics. He has quantitatively analyzed such issues as the functional attributes of short-and long-term auditory memory and its relation to speech reception. Professor Braida has developed a theoretical model that describes auditory and visual cues so that when a speaker's voice is heard and their face can be seen. This model has applications of intermodal integration—the design can be used to improve hearing aids.

Reference Publications

Krause JC, Braida LD. Acoustic properties of naturally produced clear speech at normal speaking rates. J Acoust Soc Am. 2004 Jan;115(1):362-78.
Krause JC, Braida LD. Investigating alternative forms of clear speech: the effects of speaking rate and speaking mode on intelligibility. J Acoust Soc Am. 2002 Nov;112(5 Pt 1):2165-72.
Tramo MJ, Shah GD, Braida LD. Functional role of auditory cortex in frequency processing and pitch perception. J Neurophysiol. 2002 Jan;87(1):122-39.
Tramo, M.J., Cariani, P.A., Delgutte, B, and Braida, L.D. Neurobiological Foundations for the Theory of Harmony in Western Tonal Music, in The Biological Foundations of Music, Vol. 930 of the Annals of the New York Academy of Sciences, 2001.
Paul Duchnowski, David S. Lum, Jean C. Krause, Matthew G. Sexton, Maroula S. Bratakos, and Louis D. Braida. Development of Speechreading Supplements Based on Automatic Speech Recognition. IEEE Transactions on Biomedical Engineering, vol. 47, no. 4, April 2000, 487-496.

Courses Taught

HST 710 - SP 2013 - Speech Communication	Speech Communication
HST 712 - FA 2013 - Laboratory on the Physiology, Acoustics, and Perception of Speech	Laboratory on the Physiology, Acoustics, and Perception of Speech
HST 714 - FA 2013 - Acoustics of Speech and Hearing	Acoustics of Speech and Hearing
HST 716 - FA 2013 - Signal Processing by the Auditory System: Perception	Signal Processing by the Auditory System: Perception
HST 780-789 - FA 2013 - Independent Study in the Speech and Hearing Sciences	Independent Study in the Speech and Hearing Sciences
HST 780-789 - JA 2013 - Independent Study in the Speech and Hearing Sciences	Independent Study in the Speech and Hearing Sciences
HST 780-789 - SP 2013 - Independent Study in the Speech and Hearing Sciences	Independent Study in the Speech and Hearing Sciences
HST 780-789 - SU 2013 - Independent Study in the Speech and Hearing Sciences	Independent Study in the Speech and Hearing Sciences
HST 791 - FA 2013 - Speech and Hearing Laboratory Visits	Speech and Hearing Laboratory Visits
HST 791 - SP 2013 - Speech and Hearing Laboratory Visits	Speech and Hearing Laboratory Visits

People

Faculty

braida@mit.edu

Courses Taught