10-27-2012, 04:53 PM
Just to add:
The benefits of having more than 20kHz:
The speaker/headphone will reproduce the ultrasonics more cleanly, and they will actually become quieter to conscious hearing. Second, you'll be able to benefit from the audio in the subliminal that goes above 20 kHz. It's not really terribly important, but it will help improve clarity slightly. There is audio up to 23 kHz in the ultrasonic programs.
20 kHz is the minimum for properly reproducing the ultrasonics, as they use a frequency band that tops out there. If you cannot find the frequency response rating, there's a simple test you can do to know if your speakers work.
The benefits of having more than 20kHz:
The speaker/headphone will reproduce the ultrasonics more cleanly, and they will actually become quieter to conscious hearing. Second, you'll be able to benefit from the audio in the subliminal that goes above 20 kHz. It's not really terribly important, but it will help improve clarity slightly. There is audio up to 23 kHz in the ultrasonic programs.
20 kHz is the minimum for properly reproducing the ultrasonics, as they use a frequency band that tops out there. If you cannot find the frequency response rating, there's a simple test you can do to know if your speakers work.
