Deaf in one ear

**CFTraveler** · 16th September 2007, 02:23 AM

Simply the human ear cannot identify frequencies that low.

Yes, but hearing is not what is necessary, so my question would be would the human ear be able to relay a 4Hz beat to the middle ear, and would it register in the cilia, transmitting it to the brain? Because what we are interested isn't in 'hearing' the tone, but in the brain registering it and entraining to it.
So, can the ear receive and transduce a 4 or 4.5Hz soundwave?

**Tom** · 16th September 2007, 03:58 AM

You see, I'm saying that binaurals using tones under 20 Hz do work, and I know having used them. I'm also saying that they are obviously not based on regular hearing, so being completely deaf in one ear should not be a factor unless it spoils whatever background music you use. How? Good question.

**journyman161** · 16th September 2007, 07:54 AM

I have a set of LED glasses from http://www.mindfield-biosystems.com that I got a while back - they are more sophisitcated now. I've also seen some that can be used eyes-open. Visual binaural is actually more effective than aural - think how much of your sensorium is made up of visual stimulation - & with the mindfield system the aural is an addition. It would however be useful even with limited hearing as the background music would help prevent distraction from other sources.

The glasses will get you into alpha, theta or delta as fast as it is possible to do so (takes about 6 - 7 minutes before the brainwave is measurably in tune with the beats)

But it isn't only a matter of what level you get to, there are other considerations. You can get different effects by moving from one level to another & back and how fast you go from one to the other can cause different effects as well. Jagged waves (square or triangular) have different effects to sine curves. For a rather amazing effect, you can do 45 minutes at Schumann resonance - 7.83Hz. Some patterns can be used as wake-ups & some can be used to relax or sleep.

With the software you can record your voice AND music, so after the time required to enter (say) delta, your own voice starts to guide you in your quests.

All the best...

Deadliner · 16th September 2007, 10:10 AM

Originally Posted by CFTraveler

Simply the human ear cannot identify frequencies that low.

Yes, but hearing is not what is necessary, so my question would be would the human ear be able to relay a 4Hz beat to the middle ear, and would it register in the cilia, transmitting it to the brain? Because what we are interested isn't in 'hearing' the tone, but in the brain registering it and entraining to it.
So, can the ear receive and transduce a 4 or 4.5Hz soundwave?

As far as I know, binaural beats are generated by the mind when left and right ears hear a slightly detuned sound (different frequency). So it is the difference in frequency between the two tones that generates it. This is not a pure mathematical problem where 10 - 5 = 5 and 5 - 0 = 5 again, it does need two different sounds to operate! So 5 - 0 is just one signal into one ear, hence no binaural (the zero in the equation is not acceptable).

You can just try it yourself: listen to some binaural beat and then remove one earphone from your ear. You get a steady tone, no pulsation, no fluctuation, nothing.

**CFTraveler** · 16th September 2007, 06:00 PM

I have done something similar just for kicks, but differently: I have meditated with one earplug on and one off, but really haven't done it enough to see if it makes my experience any different than just with nothing.

**CFTraveler** · 16th September 2007, 06:01 PM

Jman wrote:

For a rather amazing effect, you can do 45 minutes at Schumann resonance - 7.83Hz. Some patterns can be used as wake-ups & some can be used to relax or sleep.

This sounds interesting.

**journyman161** · 16th September 2007, 08:18 PM

The Mindfield software runs from a graph you create so it is possible to make different patterns of how the sound changes. And the different patterns cause a variety of effects. The pattern for creativity is different to that used for deep meditation; you can get some interesting effects by going deep into Delta or Theta for a while & then altering the pattern.

Deadliner · 17th September 2007, 10:55 PM

Originally Posted by Alex

The easiest way to do this would be to get some mono headphones, where both left and right channels are mixed into one. This creates an audible strobing sound at the same frequency as the binaural, but it can be listened to with only one ear.

I think you got this wrong. A mono signal in both ears does not create any effect. It's just a buzzing sound in your ears.

**journyman161** · 17th September 2007, 11:58 PM

I think Alex is talking about mixing the binaural signal prior to feeding the mono signal to the headphones. Not sure how it would work as my understanding of it is the binaural effect is a brain production not an aural one - that is what causes the entrainment rather than just the beat.