Examples |
/* delayExample<br/>
* is an example of using the Delay UGen in a continuous sound example.
* <p>
* For more information about Minim and additional features,
* visit http://code.compartmental.net/minim/
* <p>
* author: Anderson Mills<br/>
* Anderson Mills's work was supported by numediart (www.numediart.org)
*/
// import everything necessary to make sound.
import ddf.minim.*;
import ddf.minim.ugens.*;
// create all of the variables that will need to be accessed in
// more than one methods (setup(), draw(), stop()).
Minim minim;
AudioOutput out;
Delay myDelay;
// setup is run once at the beginning
void setup()
{
// initialize the drawing window
size( 512, 200 );
// initialize the minim and out objects
minim = new Minim(this);
out = minim.getLineOut();
// initialize myDelay with continual feedback and audio passthrough
myDelay = new Delay( 0.4, 0.5, true, true );
// sawh will create a Sawtooth wave with the requested number of harmonics.
// like with Waves.randomNHarms for sine waves,
// you can create a richer sounding sawtooth this way.
Waveform saw = Waves.sawh( 15 );
// create the Blip that will be used
Oscil myBlip = new Oscil( 245.0, 0.3, saw );
// Waves.square will create a square wave with an uneven duty-cycle,
// also known as a pulse wave. a square wave has only two values,
// either -1 or 1 and the duty cycle indicates how much of the wave
// should -1 and how much 1. in this case, we are asking for a square
// wave that is -1 90% of the time, and 1 10% of the time.
Waveform square = Waves.square( 0.9 );
// create an LFO to be used for an amplitude envelope
Oscil myLFO = new Oscil( 1, 0.3, square );
// offset the center value of the LFO so that it outputs 0
// for the long portion of the duty cycle
myLFO.offset.setLastValue( 0.3 );
myLFO.patch( myBlip.amplitude );
// and the Blip is patched through the delay into the output
myBlip.patch( myDelay ).patch( out );
}
// draw is run many times
void draw()
{
// erase the window to dark grey
background( 64 );
// draw using a light gray stroke
stroke( 192 );
// draw the waveforms
for( int i = 0; i < out.bufferSize() - 1; i++ )
{
// find the x position of each buffer value
float x1 = map( i, 0, out.bufferSize(), 0, width );
float x2 = map( i+1, 0, out.bufferSize(), 0, width );
// draw a line from one buffer position to the next for both channels
line( x1, 50 + out.left.get(i)*50, x2, 50 + out.left.get(i+1)*50);
line( x1, 150 + out.right.get(i)*50, x2, 150 + out.right.get(i+1)*50);
}
text( "Delay time is " + myDelay.delTime.getLastValue(), 5, 15 );
text( "Delay amplitude (feedback) is " + myDelay.delAmp.getLastValue(), 5, 30 );
}
// when the mouse is moved, change the delay parameters
void mouseMoved()
{
// set the delay time by the horizontal location
float delayTime = map( mouseX, 0, width, 0.0001, 0.5 );
myDelay.setDelTime( delayTime );
// set the feedback factor by the vertical location
float feedbackFactor = map( mouseY, 0, height, 0.99, 0.0 );
myDelay.setDelAmp( feedbackFactor );
}
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Constructors |
Delay();
Delay(maxDelayTime);
Delay(maxDelayTime, amplitudeFactor);
Delay(maxDelayTime, amplitudeFactor, feedBackOn);
Delay(maxDelayTime, amplitudeFactor, feedBackOn, passAudioOn);
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