Today’s sketch is a take on the mouse controlled ball that you can rotate and throw. I have a sphere here that is rotated by making a loud sound. I have done a rather crude thresholding but I discovered that MINIM has a nice level() call on audiobuffers that return the RMS. Hooray!
I also discovered that on a mac when you export your patch to the web it doesn’t work well if you are using OPENGL. I have included the code inline with the blog, which I don’t like so much but it will get the idea to you.
Like I predicted this is a much shorter sketch than on the weekends. This is going to be the way of it until I get more efficient at my changing weeks.
import ddf.minim.*;
import processing.opengl.*;
import javax.media.opengl.*;
Minim minim;
AudioInput input;
float r;
float inc;
void setup(){
size(screen.width, screen.height, OPENGL);
hint(ENABLE_OPENGL_4X_SMOOTH);
minim = new Minim(this);
input = minim.getLineIn(Minim.STEREO, 512);
stroke(255, 255, 150);
noFill();
}
void draw(){
background(30);
float audiolevel = input.mix.level();
if (audiolevel > 0.01)
inc++;
r = r + inc;
inc = inc * 0.85;
translate (width/2, height/2,mouseX);
rotateY(r);
sphere(200 + audiolevel*1000);
}
void keyPressed()
{
if (key == ' ')
{
saveFrame();
}
}
void stop()
{
input.close();
minim.stop();
super.stop();
}
