Does any one know of a manufacturer/supplier of optically isolates audiocables that I could use to connect a small biofeedback device that generates a tone to the microphone input of a PC?
Thanks in advance for you help
Adam Sargant
DO you absolutely need optoisolation ?
Would just an audio frequency isolation transformer be suitable for your application ?
-- Tomi Engdahl (http://www.iki.fi/then/) Take a look at my electronics web links and documents at http://www.epanorama.net/
How about this:
Kal
eep... I don't know, I'm no electronics engineer, though I do know one :-)
I'm working on a piece of software that would interact with the galvanic skin response expressed as an auditory tone, and the easiest way I could think of doing this was to plug the (already comercially available) GSR device into the line in or mic in of a pc... but I am advised that if the application is ever to be commercially viable (it may not be, that's a long way down the line) I would be required to isolate the GSR device from the PC, for the obvious reasons... if there is another way of doing it, I would be grateful for any references.
Adam
Way out of my cost league, but thanks for the response
-- Adam Sargant
-- You don't really need anything fancy; you ought to be able to do it with a simple optoisolator.
"Adam Sargant" wrote
Use a small 1:1 transformer - one winding connected to the gizmo's speaker terminals - plug the other winding into the 'line' input. Any transformer will work.
If the device generates a tone might you tape a microphone to it and plug the mic into the PC? It would get you going for next to $0.00.
-- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. Remove spaces etc. to reply: n o lindan at net com dot com psst.. want to buy an f-stop timer? nolindan.com/da/fstop/
long
would
What's the output of the GSR device?
Analog? Perhaps you could digitise it using a battery powered PIC (or similar and have the PIC output TOSLINK.
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.