I came across this product in a field recording facebook group. It's mainly used for recording animal ultrasonics or mechanical ultrasonics, but the guy experimenting with it was pointing out the hidden ultrasonic noise he was discovering from SMPSs and led lights etc whilst recording other everyday sounds.
Got me thinking it could be used in audio for finding sources of ultrasonic interference (if the unknown sources give off ultrasonics at the same frequencies as the EM interference) or simply testing the claimed frequency ranges of tweeters etc etc..
Can record to MicroSD card too.
So here's the link for anyone who might find it useful:
Ultramic384K - Dodotronic
(not cheap though @ €390).
Got me thinking it could be used in audio for finding sources of ultrasonic interference (if the unknown sources give off ultrasonics at the same frequencies as the EM interference) or simply testing the claimed frequency ranges of tweeters etc etc..
Can record to MicroSD card too.
So here's the link for anyone who might find it useful:
An externally hosted image should be here but it was not working when we last tested it.
Ultramic384K - Dodotronic
(not cheap though @ €390).