[sdiy] LFO, analog computers

[Paul Perry]

At 04:00 PM 14/02/01 EST, you wrote:
>In a message dated 2/14/01 1:41:26 PM Eastern Standard Time, matti at devo.com 
>writes:
>> 1)In trying to produce theta waves in the brain, I wondered if I couldn't 
>> simply 
>>  set an oscillator to 4-7 Hz, instead of putting one wave with some 
>frequency 
>> 
It's easier to drive light sources.
That's how the 'meditation spectacles'(sunglasses with leds built in) operate.
This technique must work,because there are documented cases of epilleptic 
fits produced by driving through an avenue of trees giving a flickering effect.

paul perry melbourne australia