For a personal project, I’m trying to record ultrasonic sound. I would like to find the best way to record from 20kHz to 200kHz.
As I found from Wikipedia, animals can hear up to 200kHz.
As I prefer to design my own board, the best component I have found is this Knowles SPH0641LU4H-1.
But the range is from 50Hz to 80kHz...
What is the best configurations/components to record ultrasonic sound?