The Missing Frequency

myNoise Binaural Beats generator, is a popular brainwave entrainment player on the internet, with hundreds of listeners every day. It covers most frequencies, from low delta (1 Hz) up to low gamma (32 Hz).

Recent scientific papers suggest that higher frequencies in the gamma range - and 40 Hz in particular - could be more effective than any other frequency for improving memory and attention. It didn't take long for visitors to begin requesting that frequency from me. Here is what they were looking for, along with some explanation as to why that frequency wasn't included the original brainwave entrainment generator.

Brainwaves are electrical waves characterized by frequencies that would be below our hearing range if they were sound. Researchers have devised various techniques to embed this inaudible signal into an audible sound and then use it as a stimulus. Popular techniques are binaural beats, isochronic and bilateral modulations.

40 Hz is unusually high for a brainwave and is already a frequency that humans can hear! This is why I didn't consider including it in the binaural beat generator: it didn't need binaural beats in order to be audible. Unfortunately, this special frequency was not to be found elsewhere on the website. Until now.

The first slider of this generator plays 40 Hz, raw, in its purest sinusoidal form. Though audible, it is still a low frequency, one that will NOT cut though small speakers.

Don't try to hear it on your mobile phone, laptop, or tablet speakers, it won't work. Use headphones instead.

The next sliders use that same frequency but as a carrier embedding other brainwave frequencies. This hasn't been offered elsewhere yet! They play two brainwaves simultaneously: 40 Hz gamma as a carrier and slower brainwaves as a binaural beat embedded in thise carrier. Headphones are again strongly recommended.

Finally, the last slider uses a much higher carrier frequency, offering 40 Hz as a pure binaural beat, instead of a raw frequency.

Experimenting with audio signals should be harmless as long as you keep the levels safe. Beware though of the preset called "Adrenaline Rush," which embeds a very strong modulation. If you don't feel comfortable while listening to it, or to other preset, just leave this page and you will be fine.

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