Re: Ribbon Microphones

Chris Hornbeck <chrishornbeckremovethis@xxxxxxx> wrote:
On Sun, 27 Aug 2006 16:07:55 -0700, Bob Cain
<arcane@xxxxxxxxxxxxxxxxx> wrote:

Only the part about slew rate limiting. That's far different from HF
rolloff and there is no mechanism in a ribbon to account for any slew
rate limiting. Passive devices just don't have that characteristic.

There is a high frequency where diaphragm motion can
no longer keep up with instantaneous differential pressure.
It's not usually thought of as being level-sensitive,
so maybe slewing isn't the best analogy.

In the case of the ribbon, there are air compression issues which ARE
level-sensitive, on top of the primary resonance that is the result
of the ribbon tension and mass. Some of these effects also exist in
very small condenser designs as well, as Juha Backman showed a few years
ago.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."
.

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