Minim |
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delAmp |
Description the strength of each repetition compared to the previous. often labeled as feedback on delay units.Signature UGen.UGenInput delAmp Related setDelAmp ( )Delay UGen.UGenInput Example /* 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 ); } Usage Web & Application |