No partials in lowest 1 1/2 octaves?

[Frank Weston]

Bob makes a good point.  With only the computer mike, the fundamentals I am
able to detect start pretty high up the scale.  With a cheap plug in mike
the results are a little better.  Check the specs on your mike.  Many
specify 50 or even 100 Hz as the bottom of their range.  Of course, the
whole issue is moot if your system does not measure the fundamental below a
certain limit.

Frank Weston

----------
> From: Robert Scott <rscott@wwnet.net>
> To: pianotech@ptg.org
> Subject: No partials in lowest 1 1/2 octaves?
> Date: Thursday, June 18, 1998 9:58 AM
> 
> Bob Sadowski wrote:
> 
> >>>
> This Sunday at our local chapter meeting we employed an RCT to
> analyze the partials in the low bass on my 1911 S & S "O".  The graph
> showed absolutely no fundamental on the lowest 1 1/2 octaves.
> <<<
> 
> The basic problem is microphone response.  Good microphones to pick up
> the frequency range below 60 Hz do exist, but they are large, expensive,
> and are not usually found in laptop computers.  If you got a hold of
> one of those expensive studio microphones and plugged it in to your
laptop,
> you might see a different picture.
> 
> Robert Scott
> Detroit-Windsor Chapter, PTG