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music lights idea Answered

Well I've been working on this project for a while now and the design has changed many times. I have also asked several questions based on the ideas. My latest idea is to make 3 different sets of lights flash to music using the 3 outputs of a 5.1 system on a computer. I know this may sound confusing but what I mean is the orange, black and green outputs which control the rear, front and center/subwoofer of a 5.1 surround system. Do you think this could work? If so then I suppose I would use just the right channel of each and possibly the ground connection (not sure whether I need it). Also if using transistors to make an electronic switch turning the lights on and off, would I need amplifiers? I only have 1 at the moment and even if I could get more they would almost certainly be different. If you know the answer to these questions please help and even I am successful the I will create an instructable on this. One more thing: Does anyone know whether the center of the center/sub connection is the tip or middle of the jack? Thanks, Jim

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guyfrom7up

10 years ago

I think u could do it with just a diode, resistor, and darlington pair. But I suggest mosfet (you want to effect the audio to the speakers as little as possible) but I totally forget what's the voltage range from an amplifier, do you have an oscilloscope?

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Arduino Guyguyfrom7up

Reply 9 years ago

you do not need an oscilloscope, use winscope or oscilloscope4 there windows compatible for sure, i do not know about mac. http://www.zen22142.zen.co.uk/Prac/winscope.htm i couldn't find Oscilloscope4 but i do have it installed on my computer. Note: a the sound card of a computer will fry if the signal is above 2v you can use a hv probe stick to make 10v into 0.1v and 100v to 1v.

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guyfrom7upguyfrom7up

Reply 10 years ago

oh, and i didn't mean to say "u" :P, i meant to say "you." too much skype chat too much online games too much txting

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pyro-jimguyfrom7up

Reply 10 years ago

Also, should I use a darlington mapir, npn or mosfet? :S

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pyro-jimguyfrom7up

Reply 10 years ago

lol, I forgot to say that the amp runs on 9v an I think that it produces up to about 6v. Don't hold me to that though. So you think that I need a diode resistor and darlington pair for each connection?

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pyro-jim

10 years ago

darn another thing I forgot: I don't have an oscilloscope as far as I know