NOOB: Something Really Simple.

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nathaniel..

NOOB: Something Really Simple.

in General Discussion • Other • 1 year ago

I've been looking around for while now now but, I can't seem to the find code.
I want a code that allows you to detect the sound levels of the computer.

I was close to finding it but, it required a microphone to detect it.

I'm trying to make an LED (I will eventually go into larger scale). Pulsate with the beat of the music or any level of the music.

Any Help will be appreciated Thanks.

Replies(1)

timpulver

Re: NOOB: Something Really Simple.

1 year ago

You will need the library Minim to do that (it's already included in the processing IDE).

To use the stereomix of your soundcard as input in processing, you need to edit your system properties to use stereomix as recording device, see discussion here: https://forum.processing.org/topic/doing-an-fft-on-system-audio-currently-playing-with-minim

Then the following code should work:

import ddf.minim.*;

import ddf.minim.signals.*;

Minim minim;
AudioInput in;
SineWave sine;
void setup()
{
size(512, 200, P2D);
minim = new Minim(this);
// get a line out from Minim, default sample rate is 44100, default bit depth is 16
in = minim.getLineIn(Minim.STEREO);
}
void draw()
{
background(0);
stroke(255);
// draw the waveforms
for(int i = 0; i < in.bufferSize() - 1; i++)
{
line(i, 50 + in.left.get(i)*50, i+1, 50 + in.left.get(i+1)*50);
line(i, 150 + in.right.get(i)*50, i+1, 150 + in.right.get(i+1)*50);
}
}
void stop()
{
// always close Minim audio classes when you are done with them
in.close();
minim.stop();
super.stop();
}

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