Hi everyone,
I don't know if this is the right sub-forum to ask, but here goes. So I'm pimping my PC with LEDs (old PC, just new casing and stuffs). I installed a neon flex strip around the frame, plugged to a remote LED controller. It worked nicely. Now I'm thinking of making the LED 'dance' to the music.
Here's the thing, I'm only using headphones with my PC, no speakers. Music LED controllers (ready to use) I found mostly use a built-in mic to listen to ambient sound. What I want is a controller that listens to the headphone jack (maybe with a 3.5mm jack splitter, or even solder it to the jack itself)
I'm thinking there are 2 different ways to approach this
- just on and off, by a simple relay. Might be able to do it with an SCR/transistor and a potentiometer for sensitivity control. I have built a homebrew photography flash gun sound trigger with a simple SCR in the past, so I'm familiar with the concept of SCR as a relay/gate.
- brightness control, gets brighter with louder sound/signal, and vice versa. Have no idea how to build from scratch.
So my question are:
1. Is there a site that contains the schematic to build the thingy I mentioned above? Also with the required parts (like what SCR part number, what size of potentiometer would work, etc)
2. Say I go ahead and buy the controller with the built in mic. Can I just snip off the built in mic, and wire it to the headphone output of my PC? I'm guessing it's not that simple, but I have minimal knowledge about these things.
Thank you in advance.
I don't know if this is the right sub-forum to ask, but here goes. So I'm pimping my PC with LEDs (old PC, just new casing and stuffs). I installed a neon flex strip around the frame, plugged to a remote LED controller. It worked nicely. Now I'm thinking of making the LED 'dance' to the music.
Here's the thing, I'm only using headphones with my PC, no speakers. Music LED controllers (ready to use) I found mostly use a built-in mic to listen to ambient sound. What I want is a controller that listens to the headphone jack (maybe with a 3.5mm jack splitter, or even solder it to the jack itself)
I'm thinking there are 2 different ways to approach this
- just on and off, by a simple relay. Might be able to do it with an SCR/transistor and a potentiometer for sensitivity control. I have built a homebrew photography flash gun sound trigger with a simple SCR in the past, so I'm familiar with the concept of SCR as a relay/gate.
- brightness control, gets brighter with louder sound/signal, and vice versa. Have no idea how to build from scratch.
So my question are:
1. Is there a site that contains the schematic to build the thingy I mentioned above? Also with the required parts (like what SCR part number, what size of potentiometer would work, etc)
2. Say I go ahead and buy the controller with the built in mic. Can I just snip off the built in mic, and wire it to the headphone output of my PC? I'm guessing it's not that simple, but I have minimal knowledge about these things.
Thank you in advance.
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