(03-11-2011, 06:45 PM)mat422 Wrote: Shannon I was just curious where did you come up with the idea to utilize ultrasonic subliminals? At first I didn't understand how they could possibly work, but I've been doing a little research and what I have found has fascinated me.
"The upper frequency limit in humans (approximately 20 kHz) is due to limitations of the middle ear, which acts as a low-pass filter. Ultrasonic hearing can occur if ultrasound is fed directly into the skull bone and reaches the cochlea through bone conduction without passing through the middle ear."
Now it says "fed directly into the skull bone" which would require a device of some sort that is in contact with the skull. But it seems like these ultrasonic subliminals are still able to vibrate the inner ear through the air. Is the principle still the same, bone is being vibrated within the ear to hear the messages? This really is amazing how we can decipher these messages even at ultrasonic frequency.
Great question.
I don't think that there is enough energy in the audio at normal levels to become conductive through bone, if it is delivered via the air. That it works through physical contact is not surprising, but the amount of energy involved in doing the same thing through the air would seem to make that explanation impossible.
How ultrasonics work, I have only ever found one theory to explain adequately, and even it has problems. But... the idea is that the hairs in the inner ear, which deal with our sense of balance, are affected by the ultrasonic audio and the resulting nerve impulses are translated by the brain into comprehended audio stimulus.
The idea of an ultrasonic "subliminal" is not new and not original to me. It is similar to the technology that was used by the military and other producers, including the original inventor of the technology, for similar purposes. I just pair it with more effective scripting methods and have better center frequencies. I got the idea when I was doing research into how to make these programs in the early 2000's, before I had the technology to do much of what I can do now.
But really, I am not sure anyone really understands how and why ultrasonics work. I have had some very highly educated people dispute the theory I gave above, with very good reasons. All I can say with certainty is this: the method does work, and there is apparently no clear understanding of how and why.
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!