Arny Krueger wrote:
"ruffrecords" wrote in message



PenguiN wrote:


As far as our

super-excursion speaker is concerned, the location that's generating
the high pitched sound is moving forward and backward several feet.


No it isn't. This is the flaw in all the doppler distortion
arguments.


If all the explanations for Doppler distortion are wrong, where does all of
the FM we measure come from? Why does it correlate well with the *incorrect*
theoretical predictions?



To produce FM there needs to be a non-linearity. If you detect FM there
is a good chance a non-linearity exists. But it is not due to the
doppler effect.

Ian