bureauzuidmvt
Posts: 1
Joined: Fri Nov 08, 2019 12:03 pm

Bat Translater

Fri Nov 08, 2019 12:32 pm

Hi guys,

I'm working on a Bat detector/translater, it's a device that will change the live bat frequencies (around 125KHz) to human like frequencies. This device will be used in a park in Rotterdam so that people have more awareness around the bats.

I have a raspberry Pi 4b, Ultramic 200K, Peterrsson 500M (both mics),.

But now I have no idea where to start the coding for the translater, do I need some more hardware or is the raspberry pi capable enough?

Anyone got any ideas to give me some direction?

User avatar
topguy
Posts: 5892
Joined: Tue Oct 09, 2012 11:46 am
Location: Trondheim, Norway

Re: Bat Translater

Mon Nov 11, 2019 2:35 pm

Those mics are USB devices ?

You should google model name + "linux" to find out if there are known issues with drivers etc.

g4bch
Posts: 8
Joined: Mon Oct 01, 2012 12:06 pm

Re: Bat Translater

Thu Nov 14, 2019 1:17 pm

You could try
http://pibat.afraidofsunlight.co.uk/
and
http://www.bat-pi.eu/

They both use a RPI.
You have whet seem to be high end microphones so should not have any problems making recordings. The script used on the pibat should work if you can get the levels right. It plays back only when the bat call is above a a given threshold. I did try it some time ago but did not have much success, there was too much low frequency sound so there was never a gap and I got continual buffer over run errors.

Peter

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