The voiced alveolar approximant is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents the alveolar and postalveolar approximants is ⟨ɹ⟩, a lowercase letter r rotated 180 degrees. The equivalent X-SAMPA symbol is r\.
Acoustic phonetics is a subfield of phonetics, which deals with acoustic aspects of speech sounds. Acoustic phonetics investigates time domain features such as the mean squared amplitude of a waveform, its duration, its fundamental frequency, or frequency domain features such as the frequency spectrum, or even combined spectrotemporal features and the relationship of these properties to other branches of phonetics, and to abstract linguistic concepts such as phonemes, phrases, or utterances.
A reading machine is a piece of assistive technology that allows blind people to access printed materials. It scans text, converts the image into text by means of optical character recognition and uses a speech synthesizer to read out what it has found.
Kenneth Noble Stevens was the Clarence J. LeBel Professor of Electrical Engineering and Computer Science, and Professor of Health Sciences and Technology at the Research Laboratory of Electronics at MIT. Stevens was head of the Speech Communication Group in MIT's Research Laboratory of Electronics (RLE), and was one of the world's leading scientists in acoustic phonetics.
Speech perception is the process by which the sounds of language are heard, interpreted, and understood. The study of speech perception is closely linked to the fields of phonology and phonetics in linguistics and cognitive psychology and perception in psychology. Research in speech perception seeks to understand how human listeners recognize speech sounds and use this information to understand spoken language. Speech perception research has applications in building computer systems that can recognize speech, in improving speech recognition for hearing- and language-impaired listeners, and in foreign-language teaching.
Haskins Laboratories, Inc. is an independent 501(c) non-profit corporation, founded in 1935 and located in New Haven, Connecticut, since 1970. Haskins has formal affiliation agreements with both Yale University and the University of Connecticut; it remains fully independent, administratively and financially, of both Yale and UConn. Haskins is a multidisciplinary and international community of researchers that conducts basic research on spoken and written language. A guiding perspective of their research is to view speech and language as emerging from biological processes, including those of adaptation, response to stimuli, and conspecific interaction. Haskins Laboratories has a long history of technological and theoretical innovation, from creating systems of rules for speech synthesis and development of an early working prototype of a reading machine for the blind to developing the landmark concept of phonemic awareness as the critical preparation for learning to read an alphabetic writing system.
Philip E. Rubin is an American cognitive scientist, technologist, and science administrator known for raising the visibility of behavioral and cognitive science, neuroscience, and ethical issues related to science, technology, and medicine, at a national level. His research career is noted for his theoretical contributions and pioneering technological developments, starting in the 1970s, related to speech synthesis and speech production, including articulatory synthesis and sinewave synthesis, and their use in studying complex temporal events, particularly understanding the biological bases of speech and language.
Alvin Meyer Liberman was born in St. Joseph, Missouri. Liberman was an American psychologist. His ideas set the agenda for fifty years of psychological research in speech perception.
Carol Ann Fowler is an American experimental psychologist. She was president and director of research at Haskins Laboratories in New Haven, Connecticut from 1992 to 2008. She is also a professor of psychology at the University of Connecticut and adjunct professor of linguistics and psychology at Yale University. She received her undergraduate degree from Brown University in 1971, her M.A University of Connecticut in 1973 and her Ph.D. in psychology from the University of Connecticut in 1977.
The pattern playback is an early talking device that was built by Dr. Franklin S. Cooper and his colleagues, including John M. Borst and Caryl Haskins, at Haskins Laboratories in the late 1940s and completed in 1950. There were several different versions of this hardware device. Only one currently survives. The machine converts pictures of the acoustic patterns of speech in the form of a spectrogram back into sound. Using this device, Alvin Liberman, Frank Cooper, and Pierre Delattre were able to discover acoustic cues for the perception of phonetic segments. This research was fundamental to the development of modern techniques of speech synthesis, reading machines for the blind, the study of speech perception and speech recognition, and the development of the motor theory of speech perception.
Articulatory synthesis refers to computational techniques for synthesizing speech based on models of the human vocal tract and the articulation processes occurring there. The shape of the vocal tract can be controlled in a number of ways which usually involves modifying the position of the speech articulators, such as the tongue, jaw, and lips. Speech is created by digitally simulating the flow of air through the representation of the vocal tract.
Articulatory phonology is a linguistic theory originally proposed in 1986 by Catherine Browman of Haskins Laboratories and Louis Goldstein of University of Southern California and Haskins. The theory identifies theoretical discrepancies between phonetics and phonology and aims to unify the two by treating them as low- and high-dimensional descriptions of a single system.
Franklin Seaney Cooper was an American physicist and inventor who was a pioneer in speech research.
Ignatius G. Mattingly (1927–2004) was a prominent American linguist and speech scientist. Prior to his academic career, he was an analyst for the National Security Agency from 1955 to 1966. He was a Lecturer and then Professor of Linguistics at the University of Connecticut from 1966 to 1996 and a researcher at Haskins Laboratories from 1966 until his death in 2004. He is best known for his pioneering work on speech synthesis and reading and for his theoretical work on the motor theory of speech perception in conjunction with Alvin Liberman. He received his B.A. in English from Yale University in 1947, his M.A. in Linguistics from Harvard University in 1959, and his Ph.D. in English from Yale University in 1968.
Catherine Phebe Browman was an American linguist and speech scientist. She received her Ph.D. in linguistics from the University of California, Los Angeles (UCLA) in 1978. Browman was a research scientist at Bell Laboratories in New Jersey (1967–1972). While at Bell Laboratories, she was known for her work on speech synthesis using demisyllables. She later worked as researcher at Haskins Laboratories in New Haven, Connecticut (1982–1998). She was best known for developing, with Louis Goldstein, of the theory of articulatory phonology, a gesture-based approach to phonological and phonetic structure. The theoretical approach is incorporated in a computational model that generates speech from a gesturally-specified lexicon. Browman was made an honorary member of the Association for Laboratory Phonology.
Elliot SaltzmanArchived 2006-09-06 at the Wayback Machine is an American psychologist and speech scientist. He is a professor in the Department of Physical Therapy at Boston University and a Senior Scientist at Haskins Laboratories in New Haven, Connecticut. He is best known for his development, with J. A. Scott Kelso of "task dynamics ." He is also known for his contributions to the development of a gestural-computational model Archived 2006-12-08 at the Wayback Machine at Haskins Laboratories that combines task dynamics with articulatory phonology and articulatory synthesis. His research interests include application of theories and methods of nonlinear dynamics and complexity theory to understanding the dynamical and biological bases of sensorimotor coordination and control. He is the co-founder, with Philip Rubin, of the IS group.
Michael Studdert-Kennedy was an American psychologist and speech scientist 1927–2017.https://haskinslabs. We org/news/michael-studdert-kennedy. He is well known for his contributions to studies of speech perception, the motor theory of speech perception, and the evolution of language, among other areas. He is a professor emeritus of psychology at the University of Connecticut and a professor emeritus of linguistics at Yale University. He is the former president (1986–1992) of Haskins Laboratories in New Haven, Connecticut. He was also a member of the Haskins Laboratories Board of Directors and was chairman of the board from 1988 until 2001. He was the son of the priest and Christian socialist Geoffrey Studdert-Kennedy.
Donald P. ShankweilerArchived 2006-06-26 at the Wayback Machine is an eminent psychologist and cognitive scientist who has done pioneering work on the representation and processing of language in the brain. He is a Professor Emeritus of Psychology at the University of Connecticut, a Senior Scientist at Haskins Laboratories in New Haven, Connecticut, and a member of the Board of Directors Archived 2021-01-26 at the Wayback Machine at Haskins. He is married to well-known American philosopher of biology, psychology, and language Ruth Millikan.
Lawrence J. Raphael (born) is a professor in the Communications Sciences and Disorders department at Adelphi University in New York City, New York. Recently, he has become known for his cluttering research, although he has a more extensive publication record in speech production and perception. He was a research associate at Haskins Laboratories from 1970 to 1999.
The motor theory of speech perception is the hypothesis that people perceive spoken words by identifying the vocal tract gestures with which they are pronounced rather than by identifying the sound patterns that speech generates. It originally claimed that speech perception is done through a specialized module that is innate and human-specific. Though the idea of a module has been qualified in more recent versions of the theory, the idea remains that the role of the speech motor system is not only to produce speech articulations but also to detect them.
