11-24-2013, 01:57 PM
AlphaMind's got it right. Ultrasonic is the one that uses pitch differencing instead of volume differencing, so you'll get the best results because of that. Speakers are what's safest for using ultrasonics on. Ultrasonic audio can be detected and deciphered even in spite of at least one form of hearing loss. But yes, if you haven't already, definitely do go have a doctor check it out.
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!
