Tone.js/Tone/component/DryWet.js

52 lines
1.3 KiB
JavaScript

///////////////////////////////////////////////////////////////////////////////
//
// DRY/WET KNOB
//
// equal power fading
// control values:
// -1 = 100% dry
// 1 = 100% wet
///////////////////////////////////////////////////////////////////////////////
define(["Tone/core/Tone", "Tone/signal/Signal", "Tone/signal/Scale"], function(Tone){
Tone.DryWet = function(initialDry){
Tone.call(this);
//components
this.dry = this.context.createGain();
this.wet = this.context.createGain();
//control signal
this.control = new Tone.Signal();
this.invert = new Tone.Scale(1, 0);
this.normal = new Tone.Scale(0, 1);
//connections
this.dry.connect(this.output);
this.wet.connect(this.output);
//wet control
this.chain(this.control, this.invert, this.wet.gain);
//dry control
this.chain(this.control, this.normal, this.dry.gain);
//setup
this.dry.gain.value = 0;
this.wet.gain.value = 0;
this.setDry(0);
}
Tone.extend(Tone.DryWet);
// @param {number} val
// @param {Tone.Timing} rampTime
Tone.DryWet.prototype.setDry = function(val, rampTime){
rampTime = this.defaultArg(rampTime, 0);
this.control.linearRampToValueAtTime(val, this.toSeconds(rampTime));
}
Tone.DryWet.prototype.setWet = function(val, rampTime){
this.setDry(-val, rampTime);
}
return Tone.DryWet;
});