On Fri, 6 Aug 2004 07:47:24 -0400, "Arny Krueger"
wrote:

The only way to verify this is to look at the phase as well as the
amplitude of the sidebands.

That's one way, but it's a very hard row for me to hoe.

So, you decline to believe that the relative amplitudes of the sidebands are
different and relevant, as the frequency has increased?


No, not at all. But I am not convinced that with the complex
interactions of a speaker you can reach your conclusion as simply as
you have. Non-linearities of various orders can cause a multiplication
function which results in phase modulation. But to put this down to
Doppler effect is a leap too far for me.

d

Pearce Consulting
http://www.pearce.uk.com