stupid envelope follower idea

[Terry Michaels]

Message text written by "Ian Fritz"
>Terry --

Good point. I was wondering if you wouldn't be able to ge around this
proplem by using RMS detection?  I'm thinking in terms of how envelope
detection is done in noise reduction circuits.

  Ian<

Hi Ian:

RMS detection is a means of calculating the "area under the curve" of the
waveform. It is commonly done by squaring the instantaneous points of the
waveform with an analog multiplier.  The peak voltage squared yields the
RMS power.  I hope that's right, I'm going by memory here.   The problem
with that approach might be the time altered waveform might not have the
same "area under the curve" as the original waveform.  It should be
possible to do a mathmatical analysis or simulation to answer your
question, maybe someone on the list has the means to do so, unfortunately I
don't.

Terry Michaels