Bregman was known for having defined and conceptually organized the field of auditory scene analysis (ASA) in his 1990 book, Auditory Scene Analysis: the perceptual Organization of Sound (MIT Press).[1] His ideas about ASA have provided a new framework for research in the auditory systems of both humans and non-human animals, for behavioral and neurological studies of speech perception, for music theory, hearing aids, audio technology, and the separation of speech from other sounds by computers (CASA). In acknowledgement of these contributions, he was called "the father of auditory scene analysis".[2]
Until his death, Bregman held a post-retirement appointment at the rank of emeritus professor in the Department of Psychology at McGill University. Arriving at McGill in 1965, he became the first professor there to teach cognitive psychology. He also taught courses on Computer and Man, Research methods in experimental psychology, Learning Theory, Auditory Perception, Psychological Theory, and honors research seminars.[3]
Many of Bregman's McGill undergraduate students have gone on to make significant contributions to intellectual life. These include Steven Pinker, Adam Gopnik, Paul Bloom, Stevan Harnad, Alfonso Caramazza, Marcel Just, Stephen McAdams, Bruce Walker, Susan Pinker, Alexander I. Rudnicky, and Alison Gopnik. His graduate students have included, among others, Gary L. Dannenbring, Valter Ciocca, Howard Steiger, Martine Turgeon, Poppy A.C. Crum, Michael Mills (Communications), James K. Wright (Music), and Francesco Tordini (Electrical Engineering). Postdoctoral fellows in his laboratory have included Richard Parncutt, Sheila Williams, and Brian Roberts.[3]
Bregman was born to a Jewish family in Toronto, Ontario, Canada on September 15, 1936. His father was an office manager and his mother, a home-maker. He had one sister, who lives in Jerusalem, Israel. His wife is a retired history professor and active artist. He had three stepdaughters and two stepsons.
Bregman died on May 18, 2023, at the age of 86.[4]
Bregman received a Bachelor of Arts degree from University College of the University of Toronto, with a concentration in Philosophy (ethics), in 1957. He received a master's degree in Psychology, also from the University of Toronto, in 1959, after which he worked as a research assistant for two summers for Endel Tulving, studying how subjective organization affected the process of memorization. In 1963, he received a PhD degree from Yale University, where he had gone, in 1959, to study the formation of concepts with Carl I. Hovland. However, after Hovland died in 1961, he did his dissertation research on human memory, supervised by Fred D. Sheffield.
Bregman's first research at McGill was a continuation of his earlier research on memory. However, in 1969, while preparing a recording of a rapid succession of sounds for an experiment on learning, he made a fortuitous discovery.
I was preparing an experiment on learning, involving a rapid sequence of unrelated sounds, each about the length of a speech phoneme. I spliced together one-tenth-second segments of many different sounds – water splashing in a sink, a dentist's drill, a tone, a vowel, etc. When I played the tape back to myself, though, I did not experience the sequences in the order that they were recorded on the tape. It appeared that non-adjacent sounds were grouping together and appeared to be adjacent. It was the similar sounds that seemed to be forming integrated perceptual sequences. This reminded me of an essay I had written at the University of Toronto on the topic of Gestalt Psychology. Some of the Gestaltist's examples showed that similar visual forms would group together and segregate from dissimilar ones. Perhaps an analogous sort of grouping might be happening in my auditory sequence. Although I had never been trained in auditory perception research, this one subjective experience set me off on a 36-year period of study."[5]
To support this research, he developed a computer-based laboratory based on a PDP-11 computer for working with auditory and visual signals and testing human subjects. Laboratory supervisors included Gary Bernstein, Gary Dannenbring, Philippe Grall, Sharif Qureshi, and Pierre Abdel Ahad.
Bregman developed the concept of auditory stream segregation (also called "streaming") to describe how a single sequence of sounds could be interpreted by the auditory system as two or more concurrent streams of sound.[6] Extensive research by Bregman and his students and postdoctoral fellows exposed many of the acoustic variables that controlled this process. Eventually he came to think of streaming as a part of a larger auditory process, which he called "auditory scene analysis" (ASA),[1][7] a process responsible for analyzing the complex mixture of sound that reaches the listener's ears and for building distinct perceptual representations of the individual acoustic sources that were buried in the mixture.
Bregman's work on ASA had influences outside the field of experimental psychology. In a field called Computational auditory scene analysis (CASA), the principles of ASA have been used in the development of computer systems that carry out ASA automatically, for example segregating speech from other concurrent sounds.[8] The principles have been applied to music to explain the segregation and integration of musical sounds [9] and have also been applied to speech perception[10] ASA has been found in human newborns [11] and in non-human animals,[12] suggesting an innate basis for the process.
In 1992, Bregman set up an electronic mail list, AUDITORY,[13] on the topic of auditory perception. Administered by Professor Daniel P. Ellis, Dept. of Electrical Engineering, Columbia University, it includes over 2500 researchers and practitioners of the auditory arts and sciences in about 45 countries (as of Aug 2011).
Bregman's extensive research on ASA yielded one book, one audio compact disk, three articles in encyclopedias or handbooks, 16 book chapters, and 53 papers in scientific journals. In addition he published 12 scientific articles on other perception-related topics, and six on human memory.[3]
Bregman, A.S., & Ahad, P.A. (1996) Demonstrations of Auditory Scene Analysis: The Perceptual Organization of Sound. Audio compact disk. (Distributed by MIT Press).
Bregman, A.S. (2004) Auditory scene analysis. In N.J. Smelzer & P.B. Baltes (Eds.) International Encyclopedia of the Social and Behavioral Sciences. Amsterdam: Pergamon (Elsevier). pp. 940–942.
Bregman, A.S. (2008) Auditory scene analysis. In Encyclopedia of Neuroscience. (L.R. Squire, Editor.) Oxford: Academic Press.
Bregman, A.S. (2007) Auditory scene analysis. In A.I. Basbaum, A. Koneko, G.M. Shepherd & G.Westheimer (Eds.) The Senses: A Comprehensive Reference, Vol. 3, Audition, P. Dallos & D. Oertel (Volume Eds.) San Diego: Academic Press, 2008, pp. 861–870.
Bregman, A.S. (1978). The formation of auditory streams. In J. Réquin (Ed.), Attention and Performance VII. Hillsdale, New Jersey: Lawrence Erlbaum.
Bregman, A.S. (1981). Asking the "what for" question in auditory perception. In M. Kubovy and J.R. Pomerantz (Eds.), Perceptual Organization. Hillsdale, New Jersey: Lawrence Erlbaum.
Bregman, A.S. (1993). Auditory scene analysis: Listening in complex environments. In S.E. McAdams, and E. Bigand (Eds.) Thinking in sound. London: Oxford University Press, pp. 10–36.
Bregman, A.S. (1998). Psychological data and computational ASA. In David F. Rosenthal and Hiroshi G. Okuno (Eds.), Computational Auditory Scene Analysis. Mahwah, NJ: Erlbaum.
Bregman, A.S. (1966). "Is recognition memory all-or-none?". Journal of Verbal Learning and Verbal Behavior. 5: 1–6. doi:10.1016/s0022-5371(66)80098-1.
Bregman, A.S. (1967). "Distribution of practice and between-trials interference". Canadian Journal of Psychology. 21 (1): 1–14. doi:10.1037/h0082962. PMID6038382.
Bregman, A.S.; Campbell, J. (1971). "Primary auditory stream segregation and perception of order in rapid sequences of tones". Journal of Experimental Psychology. 89 (2): 244–249. CiteSeerX10.1.1.615.7744. doi:10.1037/h0031163. PMID5567132.
Moeser, S.D.; Bregman, A.S. (1972). "The role of reference in the acquisition of a miniature artificial language". Journal of Verbal Learning and Verbal Behavior. 11 (6): 759–769. doi:10.1016/s0022-5371(72)80010-0.
Bregman, A.S. (1978). "Auditory streaming is cumulative". Journal of Experimental Psychology: Human Perception and Performance. 4 (3): 380–387. doi:10.1037/0096-1523.4.3.380. PMID681887.
Bregman, A.S.; Pinker (1978). "Auditory streaming and the building of timbre". Canadian Journal of Psychology. 32 (1): 19–31. doi:10.1037/h0081664. PMID728845.
Wright, J.K.; Bregman, A.S. (1987). "Auditory stream segregation and the control of dissonance in polyphonic music". Contemporary Music Review. 2: 63–92. doi:10.1080/07494468708567054.
Bregman, A.S.; Liao, C.; Levitan, R. (1990). "Auditory grouping based on fundamental frequency and formant peak frequency". Canadian Journal of Psychology. 44 (3): 400–413. doi:10.1037/h0084255. PMID2224643.
Bregman, A.S. (2005). "Auditory Scene Analysis and the Role of Phenomenology in Experimental Psychology". Canadian Psychology. 46 (1): 32–40. doi:10.1037/h0085822.
^"Albert Bregman". Montreal Gazette. Retrieved May 20, 2023 – via Remembering.ca.
^Bregman, A.S. (2005). "Auditory Scene Analysis and the Role of Phenomenology in Experimental Psychology". Canadian Psychology. 46 (1): 32–40. doi:10.1037/h0085822.
^Bregman, A.S.; Campbell, J. (1971). "Primary auditory stream segregation and perception of order in rapid sequences of tones". Journal of Experimental Psychology. 89 (2): 244–249. CiteSeerX10.1.1.615.7744. doi:10.1037/h0031163. PMID5567132.
^Bregman, A.S. (1984) Auditory scene analysis. In Proceedings of the Seventh International Congress on Pattern Recognition. Silver Spring, MD: IEEE Computer Society Press, pp. 168-175.
^Wang, D., & Brown, G.J. (2006) Computational Auditory Scene Analysis: Principles, Algorithms, and Applications. Wiley-IEEE Press
^Scheirer, E.D. (1996) "Bregman’s chimerae: Music perception as auditory scene analysis". International Conference on Music Perception and Cognition.
^Fay, R.R. (2008) Sound source perception and stream segregation in non-human vertebrate animals. In Yost, W. A., Popper, A.N., & Fay, R.R. (Eds.) Auditory perception of sound sources. Springer.
