Posted by roncla [ 207.254.227.224 ] on March 23, 2005 at 19:14:06:

In Reply to: Re: TL Help!!!! posted by ronbrady on March 23, 2005 at 11:07:24:

Cancellation is the wrong term. It would take a wave front 180 deg out of phase to truly cancell. What is happining is the wave front meets and causes a singular point of greater amplitude. The end result is sound not bouncing around or reflecting from the back wall of the chamber and exiting back thru the cone.
ron

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