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Re: Recording Bats - what microphone to use?

Subject: Re: Recording Bats - what microphone to use?
From: "animalsounds" animalsounds
Date: Thu Aug 27, 2009 2:58 am ((PDT))
> I've just noticed a little bat happily flying around in our garden at dus=
k!

Yes, it is surprising how many different bat species can even appear in a s=
uburban garden. During the last two nights I recorded at least seven differ=
ent species of bats very close to our house in Berlin, Germany (see http://=
www.avisoft.com/sounds.htm#bats).

> What microphone would enable me to pick up his high pitched noises?

As mentioned here before, many common audio microphones can also capture ul=
trasounds. However, depending on the specific model, their sensitivity is v=
ery limited at higher ultrasonic frequencies (lets say above 30 to 50 kHz).

> I've got an Fostex FR2 LE recorder, and my Roland FA-66 sound interface f=
or my computer that goes up to 192khz.

There are special microphones that are optimized for recording ultrasounds =
and that would be compatible to your recording equipment:

http://www.avisoft.com/usg/microphonesP48.htm

Regards,
Raimund







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