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replace follower with waveshaper

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This commit is contained in:
Eric Rosenbaum 2016-11-10 14:39:22 -05:00
parent 4deff78059
commit cf80c9f9b8
1 changed files with 7 additions and 7 deletions
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14
src/vocoder.js
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@ -102,12 +102,12 @@ Vocoder.prototype.initBandpassFilters = function () {
var modulatorFilterPostGain = new Tone.Gain(6); var modulatorFilterPostGain = new Tone.Gain(6);
modulatorFilter.connect(modulatorFilterPostGain); modulatorFilter.connect(modulatorFilterPostGain);
// create a lowpass filtered follower to turn the bandpass filter output into a smooth control // add a rectifier with a lowpass filter to turn the bandpass filtered signal
// signal for the carrier filter // into a smoothed control signal to control the carrier filter
var follower = new Tone.Follower(0,0); var rectifier = new Tone.WaveShaper([1,0,1]);
modulatorFilterPostGain.connect(follower); modulatorFilterPostGain.connect(rectifier);
var followerLowPass = new Tone.Filter(50, 'lowpass'); var rectifierLowPass = new Tone.Filter(50, 'lowpass');
follower.connect(followerLowPass); rectifier.connect(rectifierLowPass);
// Create the bandpass filter in the carrier chain // Create the bandpass filter in the carrier chain
var carrierFilter = new Tone.Filter(this.vocoderBands[i].frequency, 'bandpass', -24); var carrierFilter = new Tone.Filter(this.vocoderBands[i].frequency, 'bandpass', -24);
@ -121,7 +121,7 @@ Vocoder.prototype.initBandpassFilters = function () {
var bandGain = new Tone.Gain(0); var bandGain = new Tone.Gain(0);
carrierFilterPostGain.connect(bandGain); carrierFilterPostGain.connect(bandGain);
followerLowPass.connect(bandGain.gain); rectifierLowPass.connect(bandGain.gain);
bandGain.connect(this.outputGain); bandGain.connect(this.outputGain);
} }