clint
manufacturers only write specs out to 20khz usually, but all mics
still react to soundwaves at higher frequencies...it's just that the
response is totally skewed compared to the basically flat response in
the human hearing range part of the mics response.
for recording bats and insects there are special devices that will
lower the frequency of these ultrasonic sounds so that we may hear
them. that's the thing to remember...YOU can't hear anything over
about 18-20khz and unless you are recording at a very high sample
rate, you can't record it either. so at some point you'll need to
lower it.
Here's some bat detectors:
http://www.batsound.com/psondet.html
Other than that, you can take a regular mic and record at a high
sample rate [192khz] and then lower it in post. I've done that for
some bat recordings with reasonable results.
Danny
--- In "artsonics" <>
wrote:
>
> hi again,
> A while back I posted a question wanting to know a good mic for
> recording very high frequencies well above 20khz maybe to 100khz as i
> would like to try capturing very faint insect sounds...any
> sugestions.I have a feeling a mic for this sort of thing is not going
> to be cheap. The only one I have seen is the Sennheiser MKH800 and
> that only goes up to around the 50khz mark.
>
> thanks again clint
>
|