[sdiy] LFO, analog computers

[stewart pye]

There are also cases of eplleptic fits brought on by disco strobe
lights.They often seem to be around that frequency too.


stewart.

> 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
>
>