If you were to introduce two tones of different frequency into your ears, you could create binaural beats. For example, playing a tone with a frequency of 100Hz in one ear and playing a tone with a frequency of 114Hz in the other ear will force the brain to determine the phase difference between the two wavelengths of each tone. We naturally do this to determine directional information.

The signals integrate and become a third frequency or what we call a 'binaural beat'. The resultant beat of 14Hz is produced within your brain. The tone will sound like a wave or beat depending on the frequency. If the generated beat is 4Hz, then it will sound more like a wave, however if the beat is at 20Hz, it will sound more like a beat.

Stereo headphones must be used in order to make use of this technology. If you were to use speakers, the tones would mix in the air and not give you the desired effect. It can produce a monoraul beat, which can be used for brain wave entrainment (bwe). However, if the track was created for binaural beats, it should be used as such.

When first listening to these binaurals, you may initially hear a warbling sound until your brain adjusts. If you have a hearing loss in one ear, it does not reduce the effect of binaural beats. It's not how loud they are, in fact you could actually used them just below what we can naturally hear, and they would still be effective. Commonly, binaurals are masked with noise or music of some kind.

There is a lot of controversy over whether or not binaural beats can be used for brain-wave entrainment. According to Dr. Gerald Oster binaural beats can be used to produce beats from as little as 0.235Hz to as high as 26.25Hz. Oster also concluded that binaural beats would be insufficient for brainwave entrainment because the depth of the beat is only around 3 decibels or 1/10 the volume of a whisper.

Many companies use binaural beats as the basis for their products such as The Monroe Institute (Hemi-Sync), I-Doser, and Centerpointe (Holosync). The beats are usually mixed with noise, music, ambiance, or guided instructions.

There are other technologies which are more efficient like low-pass filter modulation, cross-feed modulation, isochronic tones, monaural beats, pitch modulation and auto-pan modulation. Every type has it's own limitations. Our products use a combination of these methods to achieve the best possible results.