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This commit is contained in:
Eric Rosenbaum 2016-11-10 18:04:49 -05:00
parent cf80c9f9b8
commit 0c2548f6ba
1 changed files with 2 additions and 2 deletions
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src/vocoder.js
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@ -103,7 +103,7 @@ Vocoder.prototype.initBandpassFilters = function () {
modulatorFilter.connect(modulatorFilterPostGain); modulatorFilter.connect(modulatorFilterPostGain);
// add a rectifier with a lowpass filter to turn the bandpass filtered signal // add a rectifier with a lowpass filter to turn the bandpass filtered signal
// into a smoothed control signal to control the carrier filter // into a smoothed control signal for the carrier filter
var rectifier = new Tone.WaveShaper([1,0,1]); var rectifier = new Tone.WaveShaper([1,0,1]);
modulatorFilterPostGain.connect(rectifier); modulatorFilterPostGain.connect(rectifier);
var rectifierLowPass = new Tone.Filter(50, 'lowpass'); var rectifierLowPass = new Tone.Filter(50, 'lowpass');
@ -113,7 +113,6 @@ Vocoder.prototype.initBandpassFilters = function () {
var carrierFilter = new Tone.Filter(this.vocoderBands[i].frequency, 'bandpass', -24); var carrierFilter = new Tone.Filter(this.vocoderBands[i].frequency, 'bandpass', -24);
carrierFilter.Q.value = FILTER_QUALITY; carrierFilter.Q.value = FILTER_QUALITY;
this.carrierInput.connect(carrierFilter); this.carrierInput.connect(carrierFilter);
var carrierFilterPostGain = new Tone.Gain(10); var carrierFilterPostGain = new Tone.Gain(10);
carrierFilter.connect(carrierFilterPostGain); carrierFilter.connect(carrierFilterPostGain);
@ -121,6 +120,7 @@ Vocoder.prototype.initBandpassFilters = function () {
var bandGain = new Tone.Gain(0); var bandGain = new Tone.Gain(0);
carrierFilterPostGain.connect(bandGain); carrierFilterPostGain.connect(bandGain);
// the modulator band filter output controls the gain of the carrier band
rectifierLowPass.connect(bandGain.gain); rectifierLowPass.connect(bandGain.gain);
bandGain.connect(this.outputGain); bandGain.connect(this.outputGain);