10-11-2014, 12:35 AM
Conscious hearing goes to 12-14kHz for most people of adult age. My ultrasonics have a frequency band of 15 kHz to 20 kHz, centering on 17.5 kHz. This works even if you cannot consciously hear it, although nobody seems to have a certain answer for why. The best theory I have heard so far is that it vibrates the tiny hairs in your ear that help you with balance. So don't worry about it, they'll work for you.
Subliminal Audio Specialist & Administrator
The scientist has a question to find an answer for. The pseudo-scientist has an answer to find a question for. ~ "Failure is the path of least persistence." - Chinese Fortune Cookie ~ Logic left. Emotion right. But thinking, straight ahead. ~ Sperate supra omnia in valorem. (The value of trust is above all else.) ~ Meowsomeness!
The scientist has a question to find an answer for. The pseudo-scientist has an answer to find a question for. ~ "Failure is the path of least persistence." - Chinese Fortune Cookie ~ Logic left. Emotion right. But thinking, straight ahead. ~ Sperate supra omnia in valorem. (The value of trust is above all else.) ~ Meowsomeness!
