How to make sound reactive LEDs
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Uploaded by monster2221 on Sep 5, 2010
this will show you how to make sound reactive LEDs without blowing them up by loud music.
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Uploader Comments (monster2221)
All Comments (234)
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im a tiny bit confused with attaching the audio cable ( headphone wires ) for example i have a red blue and orange I'm guessing red is positive like it always is and the orange one is ground and then blue is negative ? where do i put these ?
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@monster2221 they always recommend a resistor. and capacitor would only make the light have a fade out effect.
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fucking awesome music!!!
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@monster2221 does the TIP31CO.. can be used??? or does they just have same value with the transistor use in this video.. please do response thank you....
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also i used the leds out of a flashlight, and a usb cord instead, works great other than the spliter prob. works with ipod and phone. Also thebeybladenation, with the flashlight leds in fades in and out instead of just flashing
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when i plug the splitter in, it only allows one signal or the other, so if musics working light isnt, same for other way. WHy do you think that is
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you mentioned needing an AC to DC transformer with 12V output--and then you showed a pic of a 120 VaC to 12VaC transformer, yes it was 12Volts but it was AC--400mA
still haven't finished the video will keep watching and see how it goes
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i'm enjoying the background music not the video...hihihi but i like
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@xxxjgodxxx you would definitely need some sort of audio input device. I would not be able to answer many questions on how specifically it works but yes you would need a device taking in the sound waves to output them to a LED.
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well, the lm324 should cut it, but check this video on amplifiers to build your understanding
/watch?v=TQB1VlLBgJE
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Can you take the signal straigt from the the speaker like in your other video and use the TIP31? or you need to take it with the jack from the computer?
steffy2006us 1 month ago
@steffy2006us i have never tried to take the signal straight from the speaker, it could work but i dont have an idea how. try it and if it would work tell me.
monster2221 1 month ago
any resistors or capacitators needed?
TheBeyBladeNation 2 months ago
@TheBeyBladeNation no, only if you use the right amount of leds per amount of voltage you use. look up led calculator in Google, this should help you.
monster2221 2 months ago