I am looking for evaluation of this mic I just finished.
The intended use is outside as both a bird feeder mic and for
monitoring migrating birds. Critical evaluation by all is appreciated.
It tests above 40mph winds headon and 15 mph side.
So far I lost no recording time in 1 hour of rain.
Base cap is 4" pvc, Stainer is 6".
The total construction cost of this mic is $13.50 US
Any changes would be easiest now before I move on to Proto 2 which
will be balanced output with a xlr connector.
design preference is to be low freq weak and song bird call range hot.
Mic element before pzm gain is: Sensitivity -65 db.
All jpg downloads are under 200kb. but the mp3 file is 466 kb
Finished Prototype Photo:
http://home.attbi.com/~richpeet/finished.jpg
Partly apart to see parts:
http://home.attbi.com/~richpeet/proto1apart.jpg
Underside before all electronics coated in epoxy
http://home.attbi.com/~richpeet/bottom.jpg
Wiring diagram:
http://home.attbi.com/~richpeet/diagram.jpg
A sample recording 6' under a bird feeder with callers about 20'
away. An expressway with severe rumble is 1/4 mile away.
http://home.attbi.com/~richpeet/proto1.mp3
A visual of the sample recording:
http://home.attbi.com/~richpeet/proto1.jpg
My first impression is that it is a great mic at $13.50 but I am
looking for all ideas how to make it better.
Rich Peet
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