Re: streams and groups ("John K. Bates" )

Subject: Re: streams and groups
From:    "John K. Bates"  <jkbates(at)COMPUTER.NET>
Date:    Mon, 14 May 2001 13:53:41 -0400

Dear Al and List, (I wrote this before I read your more recent post but I'm sending it anyway. A little redundancy can't hurt.) In the few times that I have given talks before an audience, a few perplexed but polite people might applaud my presentation. Since there are so few, I am able easily to identify the individual streams of hand claps from the sources scattered among the audience. As I understand the discussion here, each clap in a clapper's stream of claps could be considered to be a group. Or is it that each clapper's stream of claps is a group? In any case, further parsing of my applause would reveal that every individual clap is itself composed of streams and/or groups of smaller identifiable transient events. But when you, Al, finish a presentation, the audience explodes with an ovation that is a flow of hundreds of homogenized hand-clap sources. You can no longer pick out the streams and groups. The applause you get is a single amorphous spatially distributed stream of noise. What happened to the groups? And is it important to know this? John Bates Pleasantville, New York At 10:31 PM 05/10/2001 -0400, you wrote: >Hi Tony and List, > >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? > >Best, > >Al >------------------------------------------------- >Albert S. Bregman, Emeritus Professor >Dept of Psychology, McGill University >1205 Docteur Penfield Avenue >Montreal, QC, Canada H3A 1B1 > >Office: > Phone: +1 (514) 398-6103 > Fax: +1 (514) 398-4896 >Home: > Phone & Fax: +1 (514) 484-2592 >Email: > bregman(at)

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