Thanks,
Recorded by laptop in mono at 24/96.
Microphone is a very old Senn MKH-110
a/d is a rme multiface.
mic pre a rme quadmic.
home made field case and power supplies for mic and equipment.
In post. Sample rate adjusted to bring bat down to audible and expand
time.
Dynamic range altered about 6 db to amplify the quiet echos heard but
not the primary calls volume.
Recorded at a large city (Minneapolis, MN)lake shore. Drove around
looking at the spectral display with the mic held out a sun roof
window to find bats. Even in a city it is pretty quiet above 25,000.=20
I am still trying to figure out an occational narrow few seconds tone
above 30,000 heard. I don't know if it is an industrial sonar device
or natural. More work needed on that.
Makes me wish I had a 196khz sample rate as the mic is pretty smooth
up there to 40,000. I have not done comparisons yet to my other mics
to see if they can do this.
Rich
--- In Gianni Pavan <>
wrote:
> Rich,
> great recording! please, can you give me details on
recording
> equipment and settings ?
>
> Gianni
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