scratchfoundation/scratch-audio
1
0
Fork 0
mirror of https://github.com/scratchfoundation/scratch-audio.git synced 2024-12-22 22:12:48 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

add distortion effect

Browse source
This commit is contained in:
Eric Rosenbaum 2016-10-26 16:53:23 -04:00
parent 840c53f524
commit d9c879d4b7
1 changed files with 18 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
src/index.js
View file

@ -14,13 +14,15 @@ function AudioEngine (sounds) {
this.delay = new Tone.FeedbackDelay(0.25, 0.5);
this.panner = new Tone.Panner();
this.reverb = new Tone.Freeverb();
this.distortion = new Tone.Distortion();
this.pitchEffectValue;
// the effects are chained to an effects node for this clone, then to the master output
// so audio is sent from each player or instrument, through the effects in order, then out
// note that the pitch effect works differently - it sets the playback rate for each player
this.effectsNode = new Tone.Gain();
this.effectsNode.chain(this.delay, this.panner, this.reverb, Tone.Master);
this.effectsNode.chain(this.distortion, this.delay, this.panner, this.reverb, Tone.Master);
// reset effects to their default parameters
this.clearEffects();
@ -164,6 +166,12 @@ AudioEngine.prototype.setEffect = function (effect, value) {
case 'PITCH':
this._setPitchShift(value);
break;
case 'DISTORTION' :
this.distortion.wet.value = value / 100;
break;
case 'ROBOTIC' :
// vocoder effect?
break;
}
};
@ -184,6 +192,14 @@ AudioEngine.prototype.changeEffect = function (effect, value) {
case 'PITCH':
this._setPitchShift(this.pitchEffectValue + Number(value));
break;
case 'DISTORTION' :
this.distortion.wet.value += value / 100;
this.distortion.wet.value = this._clamp(this.distortion.wet.value, 0, 1);
break;
case 'ROBOTIC' :
// vocoder effect?
break;
}
};
@ -215,6 +231,7 @@ AudioEngine.prototype.clearEffects = function () {
this._setPitchShift(0);
this.panner.pan.value = 0;
this.reverb.wet.value = 0;
this.distortion.wet.value = 0;
};
AudioEngine.prototype.setVolume = function (value) {