Light And Sound Machines
One purpose of such technology is to create a relaxed state through the use of sound and light stimulation. It was discovered in the 1930’s that repetitive light stimulation (strobing) caused brain waves to follow and pulse at the same frequency. This discovery had profound implications for the human condition, giving rise to an entire industry that explores the possibilities in using outside stimulation to provide a functioning aide to the workings of the brain. The devices on the market today are set at predetermined frequencies of 1 to 40 Hertz per second. The user is then free to experiment on just how these vibrational frequencies influence their affect on the mind’s eye. Most users report patterns of colors that pulse in synch with the frequency of the beats. The patterns are often quite psychedelic and geometrical.
Light and sound machines are often used for meditation assistance, or to aid the learning process. The technologies are referred to as audio−visual stimulation systems, light and sound machines, or mind machines. Varying patterns of light and sound are used to create different states of awareness, attention, relaxation, creativity, and receptivity to information. Most systems are controlled by a microprocessor. The sound and music sometimes comes on a CD, with the frequency patterns embedded in the music.
A typical system is made up of three components: a light/sound synthesizer, stereo headphones, and stimulation glasses with pulsating lights. A carefully composed sequence of rhythmic light and sound patterns direct the stimulation synthesis, creating light and or sound sessions for the desired effect. Some systems connect to your music CD player, or have one built in. The process employs a technology called an audio strobe system, which creates inaudible, high frequency beats that drive a light/sound system. Other systems have computer interface capabilities that allow the user to vary the tone, frequency, pitch and other parameters to tailor the program to individual needs. Some metaphysical technology companies have downloadable programs that allow for even more growth, variety, and individual tailoring. A few make a point of offering customer service where the company provides you with specifics that are designed to individual needs.



