Subject: Re: streams and groups From: Bruno Repp <repp(at)ALVIN.HASKINS.YALE.EDU> Date: Fri, 11 May 2001 14:55:32 -0700Al Bregman wrote: >I know what a stream is -- a time-varying sound or sequence of >sounds, treated by the auditory system as coming from a single >sound source. However, I don't know what is meant by a group. >Perhaps the context in which this term was found would be >informative. How was it used in the original source? I believe you are only pretending not to know about groups, Al. Perhaps you don't find the concept useful in your work? A group is a set of elements that is perceived as belonging together. In audition, these elements usually come from the same source, which is another property (besides temporal non-overlap) that distinguishes groups from streams. Perceptual grouping is as basic and ubiquitous a process as streaming, and there is a large literature on it. Grouping provides organization within streams. --Bruno Bruno H. Repp Research Scientist Haskins Laboratories 270 Crown Street New Haven, CT 06511-6695 Tel. (203) 865-6163, ext. 236 FAX (203) 865-8963 e-mail: repp(at)haskins.yale.edu