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• It destroys the delicate phase relationships, which help to establish an ac -
curate sound stage.
Slap echo is a common acoustical problem in the typical domestic listening room
because most of these rooms have walls with a hard, reflective nature, only occasion -
ally interrupted by curtains, wall art, or drapes. The best (but least practical) solution
to eliminate slap echo is nonparallel walls. This is because, rather than support slap-
echo, nonparallel walls allow the sound to diffuse. This approach can be accounted for
during the construction process. For existing rooms, slap echo can also be controlled
entirely by the application of absorptive materials to the hard surfaces. These are ab -
sorptive materials that can be used to ameliorate slap echo:
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u e t t e
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w n e r
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a n u a l
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W i l s o n A u d i o S p e c i a l t i e s
f
igure
14 - c
ommon room reflection proBlemS