Oh we are in for one of those "I can hear above 22kHz" arguments "but I
don't need to prove it even to myself of course!"
OK, there are higher sampling rate options just for you!
**_I_ don't claim to be able to hear past 22kHz. I don't doubt that some
can, however. Back in the 1970s, I worked for a medium sized importer of
hi fi equipment. I was asked to pop down to the new warehouse that the
company had leased. I walked in the door and immediately walked back
out. I found something intolerable about the place. I glanced around and
spotted some ultrasonic burglar alarm sensors. I located the power
supply and shut it off. I was then able to complete my job. I returned a
few days later with a micrphone, preamp, CRO and frequency counter. I
switched the system on and off and was able to see, very clearly, a high
level of 25kHz signal throughout much of the warehouse. Given that I had
already measured my own hearing and found that I could not reliably hear
past 19kHz, I was surprised. However, it is a common fallacy to assume
that human hearing 'cuts off' at 20kHz. It does not. It is severely
attenuated.