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Psycho-acoustics

Posted by KlausR. (A) on March 17, 2009 at 03:03:44

In Reply to: Ceiling Treatment posted by JKalman on March 15, 2009 at 14:29:18:

Ceiling reflections, in the absence of other first reflections, seem to be misleading (sound localisation). So when you treat all first reflections points except the ceiling, the ceiling might be a problem:

Guski, “Auditory localisation: effects of reflecting surfaces”, Perception 1990, vol. 19, p.819

That's a point that is known from psychoacoustic research: the less first reflections you have the more the remaining reflections become audible (absolute detection thresholds decrease) and eventually may become problematic.

Klaus

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