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6.541J Speech Communication
(Same subject as 24.968J, HST.710J)
Prereq.: Permission of instructor
Units: 3-1-8
Offered every year in the spring term.
Survey of structural properties of natural languages, with
special emphasis on the sound pattern. Representation of the
lexicon. Physiology of speech production, articulatory phonetics.
Acoustical theory of speech production; acoustical and articulatory
descriptions of phonetic features and of prosodic aspects
of speech. Perception of speech. Models of lexical access
and of speech production and planning. Applications to recognition
and generation of speech by machine, and to the study of speech
disorders. Recommended prerequisite: mathematical background
equivalent to 6.003.
K. N. Stevens, S. Shattuck-Hufnagel
6.542J Laboratory on the
Physiology, Acoustics, and Perception of Speech
(Same subject as 24.966J, HST.712J)
Prereq.: Permission of instructor
Units: 2-2-8
Offered every odd-numbered year in the fall term.
Experimental investigations of speech processes. Topics: measurement
of articulatory movements; measurements of pressures and airflows
in speech production; computer-aided waveform analysis and
spectral analysis of speech; synthesis of speech; perception
and discrimination of speechlike sounds; speech prosody; models
for speech recognition; speech disorders; and other topics.
Recommended prerequisites: 6.002 or 18.03. 4 Engineering Design
Points.
K. N. Stevens, J. S. Perkell,
S. Shattuck-Hufnagel
6.551J Acoustics of Speech
and Hearing
(Same subject as HST.714J)
Prereq.: 8.03 and 6.003 or permission of instructor
Units: 4-1-7
Offered every year in the fall term.
Provides acoustical background necessary to understand the
role of sound in speech communication. Analyzes constraints
imposed by the properties of sound and human anatomy on speech
production (sound production from airflow and filtering by
the vocal tract); auditory physiology (transformation of acoustical
waves in the air to mechanical vibrations of cochlear structures);
and sound perception (spatial hearing, masking, and auditory
frequency selectivity). 4 Engineering Design Points.
L. D. Braida, J. J. Rosowski,
C. Shera, K. N. Stevens
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