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RE: Re: RE:Bats catching a dime

Subject: RE: Re: RE:Bats catching a dime
From: "DragonDancer ^_^" <>
Date: Mon, 20 Jun 2005 16:28:08 -0500

Please let me know as well.  I'm a bat biologist and would love to see that 


>Let me know when you want to try and video them.
>Mark Alt

>I think its all in the toss. You gotta get the flip right on those
>dimes to sucker the bat. I have not found any bat roosts up here like
>you have down there so I have to settle with just single bat fly bys.
>The main exercise for me with the dimes is to get the bat to fly
>around my Cube Mic to check the surround image.  I was confused for
>some time by echos that were louder than the primary signals.  It has
>become my conclusion based on listening that the bat has a fairly
>narrow projection of its voice and when its voice hits my garage
>(about 30 feet away) the sound is spred out so that the mic picks up a
>larger echo than the primary voice and over a wider degree area. I am
>sure someone has worked with determination of the directional
>character of a bat voice but it is new fun for me. I can not prove any
>of this without video capability of course.
>I still have much work to do before I can conclude how many degrees I
>can get resolution of from this Cube Mic.  It appears that the math
>that leads one to believe distance to the source is a problem in
>resolving accurate direction of stereo or quad images from a
>microphone may not be important. I suspect this is not a problem when
>everything is beyond "near field" or "far field" aka "faint field"
>where I am doing all my recording.


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