Walking into any spa, massage centre, beauty centre and the likes, the
first thing one would notice is the tranquil and quiet surroundings
that are only “broken” by the equally intoxication tranquil sounding
light music in the background.
Similar yet different to this is the binaural beats. The underlying
reason for using this type of music is similar and so is the intended
goal. Binaural beats are sounds that are supposed to stimulate the
brain in specific ways. These sounds have been claimed to help induce
relaxation, meditation, creativity and other desirable mental states.
The way the brain is affected depends on the varying frequencies of
each tone. Each ear listens to these tones at different frequencies.
This may sound strange, but that is the basis of binaural beats. The
right ear my listen to a tone of 300Hz while the left ear listens to the
same sounds but at a different tone of 310Hz.
In order for the phenomenon to work the low frequency pulsations in
the amplitude and sound localization of the sound must be presented
separately, ideally using head phones.
Also the frequencies of the tones must be below 1000Hz for the
beating to be noticeable. Also the difference between the two
frequencies must be small, otherwise the two tone sounds would clash
and come out sounding separately, and thus the binaural effects are