MAA and stream separation (Brian Gygi )

Subject: MAA and stream separation
From:    Brian Gygi  <bgygi(at)INDIANA.EDU>
Date:    Thu, 15 Oct 1998 11:49:36 -0500

On Thu, 15 Oct 1998, Richard J. Fabbri wrote:

>         ... Maybe an absurd example would help to see why.
>
>         ... What if our M(inimum)A(udible)A(ngle) were, instead of
>         1-2 spatial degrees, actually much larger ... say, 100 degrees !
>
>         ... i.e., TWO speakers would be perceived as ONE speaker
>         unless they were separated by MORE THAN 100 degrees !!

Let's take another absurd example.  You are listening to two talkers
through a *single* loudspeaker.  You would almost never think they were
one speaker, even though the angle of separation is zero.  Spatial
separation is useful, but is far from the defining feature of stream
segregation, for the simple fact that in highly reverberant environment,
the necessary information (time of arrival, phase)  can often be
ambiguous.

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