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Precision Analogue Scale Device
This machine was originally designed for a researcher who doesn't even
*use* MediaLab or DirectRT. In his research, test subjects are
subjected to various levels of pain, ranging from 'I don't feel
anything' to 'Worst. Pain. Ever.' He told his subjects that as
the pain levels changed, they should move the slider toward one
end of the box or the other. The slider has travels 100 mm (about 4") in total.

His computer contains a precision analogue capture card with
16 bit resolution. So, we designed some precision electronics
to feed his capture card. The power supply circuitry that we
chose is ultra-clean.
Any electrical noise present in the output is several orders
of magnitude smaller than the output voltage change produced
by 1 mm of travel.
The fader we chose is the same model used in recording studios
on mixing consoles costing hundreds of thousands of dollars.
It's amazingly precise and very linear.
The analog voltage output on a BNC connector varies between zero
and ten volts DC, depending on the position of the fader.
This box can easily be modified to output digital signals
compatible with MediaLab and DirectRT. Just let us know!

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Release of the sleek new DirectIN button boxes. Same super-fast circuitry but a fresh new look. Read more
Empirisoft releases the first circuit board that can be implanted in a standard keyboard to make it millisecond accurate. Read more
DirectIN surgery -- designing top quality keyboards with millisecond accuracy.
Release of the DirectIN Custom Response Box System., the first high-precision, plug and play box that allows you to switch button layouts.
Empirisoft hires engineering genius John Chapman to head its new hardware division.
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