Hi dear community,
I have a peculiar demand from my Arudino Due. I want to use it to make a portable device that plays bat calls on push of a button. Now, the recorded bat calls are broadband signals ranging between 40 to 65 kHz for a common species in Germany. I played around with the Due DAC0 output a bit but realized that it does not play signals at 192kHz sampling rate. Could anyone suggest me if 1) this is achievable just with the Due, or in combination. with other hardware, 2) how to go about it, if yes.
Warmly,
Ravi
Due DAC is rubbish and is not even good for your average audio let alone ultrasound. What do you use as emmiter for your recordings?
Hi,
thanks for the reply. I am feeding the DAC output to a class D power amp which is driving a *tweeter. This works fine when I use a sound card and play the calls via MATLAB.
You mean tweeter? tweeters go to 19 maybe 22khz way way lower than 40-65khz required. same goes for class D amp, has it got enough bandwidth?
Yes. The power amp and the speaker are fine. I can hear the calls from a bat detector. 
Ok, I see you have superhuman hearing, I leave it to you then
No, I don't. Hence the bat detector... 