mirror of
https://github.com/Tonejs/Tone.js
synced 2025-01-05 00:18:43 +00:00
280 lines
No EOL
7.3 KiB
JavaScript
280 lines
No EOL
7.3 KiB
JavaScript
define(["chai", "Tone/component/Recorder", "Tone/signal/Signal", "Tone/signal/Add", "Tone/signal/Multiply",
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"Tone/signal/Scale", "Tone/source/Oscillator", "Tone/signal/Merge", "Tone/signal/Split", "tests/Core"],
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function(chai, Recorder, Signal, Add, Multiply, Scale, Oscillator, Merge, Split, Master){
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var expect = chai.expect;
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//SIGNAL
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describe("Tone.Signal", function(){
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this.timeout(1000);
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it("can be created and disposed", function(){
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var s = new Signal();
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s.dispose();
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});
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it("can start with a value initially", function(){
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var signal = new Signal(100);
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expect(signal.getValue()).to.equal(100);
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});
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it("can set a value", function(){
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var signal = new Signal(0);
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signal.setValue(10);
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expect(signal.getValue()).to.equal(10);
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});
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it("can set a value in the future", function(done){
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var signal = new Signal(0);
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// signal.toMaster();
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signal.setValueAtTime(10, "+0.1");
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signal.noGC();
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expect(signal.getValue()).to.equal(0);
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var interval = setInterval(function(){
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if (signal.getValue() === 10){
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done();
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clearInterval(interval);
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signal.dispose();
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}
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}, 10);
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});
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it("can change value with sample accurate timing", function(done){
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var signal = new Signal(0);
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var waitTime = 0.05;
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var recorder = new Recorder();
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signal.connect(recorder);
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signal.noGC();
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signal.setValueAtTime(1, "+"+waitTime);//ramp after 50ms
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recorder.record(0.1);
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setTimeout(function(){
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var buffer = recorder.getFloat32Array()[0];
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for (var i = 0; i < buffer.length; i++){
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if (buffer[i] === 1){
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expect(signal.samplesToSeconds(i)).is.closeTo(waitTime, 0.001);
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done();
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signal.dispose();
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break;
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}
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}
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}, 100);
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});
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it("can sync to another signal", function(done){
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var signal0 = new Signal(1);
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var signal1 = new Signal(2);
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signal0.noGC();
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signal1.noGC();
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//sync signal1 to signal0
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signal1.sync(signal0);
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//change signal0 and signal1 should also change
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signal0.setValue(2);
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var recorder = new Recorder();
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signal1.connect(recorder);
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recorder.record(0.05);
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setTimeout(function(){
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var buffer = recorder.getFloat32Array()[0];
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for (var i = 0; i < buffer.length; i++){
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expect(buffer[i]).to.equal(4);
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}
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done();
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signal0.dispose();
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signal1.dispose();
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}, 100);
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});
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it("can ramp from the current value", function(done){
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var signal = new Signal(-10);
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signal.noGC();
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var recorder = new Recorder(1);
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signal.connect(recorder);
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var waitTime = 0.03;
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recorder.record(0.05);
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expect(signal.getValue()).to.equal(-10);
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signal.linearRampToValueNow(1, waitTime);
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setTimeout(function(){
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var buffer = recorder.getFloat32Array()[0];
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for (var i = 0; i < buffer.length; i++){
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if (buffer[i] === 1){
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expect(signal.samplesToSeconds(i)).is.closeTo(waitTime, 0.01);
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done();
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signal.dispose();
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break;
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}
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}
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}, 100);
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});
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});
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//ADD
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describe("Tone.Add", function(){
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this.timeout(500);
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it("can be created and disposed", function(){
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var a = new Add(1);
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a.dispose();
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});
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it("correctly sums a signal and a number", function(done){
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var signal = new Signal(0);
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var adder = new Add(3);
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signal.connect(adder);
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var recorder = new Recorder();
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adder.connect(recorder);
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recorder.record(0.05);
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setTimeout(function(){
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var buffer = recorder.getFloat32Array()[0];
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//get the left buffer and check that all values are === 1
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for (var i = 0; i < buffer.length; i++){
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expect(buffer[i]).to.equal(3);
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}
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done();
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}, 100);
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});
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it("can handle negative values", function(done){
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var signal = new Signal(10);
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var adder = new Add(-1);
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signal.connect(adder);
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var recorder = new Recorder();
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adder.connect(recorder);
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recorder.record(0.05);
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setTimeout(function(){
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var buffer = recorder.getFloat32Array()[0];
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//get the left buffer and check that all values are === 1
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for (var i = 0; i < buffer.length; i++){
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expect(buffer[i]).to.equal(9);
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}
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done();
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}, 100);
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});
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});
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//MULTIPLY
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describe("Tone.Multiply", function(){
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this.timeout(500);
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it("can be created and disposed", function(){
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var m = new Multiply(1);
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m.dispose();
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});
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it("correctly multiplys a signal and a scalar", function(done){
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var signal = new Signal(2);
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var mult = new Multiply(10);
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signal.connect(mult);
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var recorder = new Recorder();
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mult.connect(recorder);
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recorder.record(0.05);
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setTimeout(function(){
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var buffer = recorder.getFloat32Array()[0];
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//get the left buffer and check that all values are === 1
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for (var i = 0; i < buffer.length; i++){
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expect(buffer[i]).to.equal(20);
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}
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done();
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}, 100);
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});
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});
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//SCALE
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describe("Tone.Scale", function(){
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this.timeout(500);
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it("can be created and disposed", function(){
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var s = new Scale(0, 10);
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s.dispose();
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});
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it("scales an input range to an output range", function(done){
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//make an oscillator to drive the signal
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var osc = new Oscillator(1000);
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osc.start();
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var scale = new Scale(-1, 1, 10, 20);
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osc.connect(scale);
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var recorder = new Recorder();
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scale.connect(recorder);
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recorder.record(0.05);
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setTimeout(function(){
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var buffer = recorder.getFloat32Array()[0];
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//get the left buffer and check that all values are === 1
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for (var i = 0; i < buffer.length; i++){
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expect(buffer[i]).to.be.within(10, 20);
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}
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done();
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}, 100);
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});
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});
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//MERGE
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describe("Tone.Merge", function(){
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this.timeout(500);
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it("can be created and disposed", function(){
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var mer = new Merge();
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mer.dispose();
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});
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it("merge two signal into one stereo signal", function(done){
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//make an oscillator to drive the signal
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var sigL = new Signal(1);
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var sigR = new Signal(2);
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var merger = new Merge();
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sigL.connect(merger.left);
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sigR.connect(merger.right);
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var recorder = new Recorder(2);
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merger.connect(recorder);
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recorder.record(0.05);
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setTimeout(function(){
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var buffers = recorder.getFloat32Array();
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var lBuffer = buffers[0];
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var rBuffer = buffers[1];
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//get the left buffer and check that all values are === 1
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for (var i = 0; i < lBuffer.length; i++){
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expect(lBuffer[i]).to.equal(1);
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expect(rBuffer[i]).to.equal(2);
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}
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done();
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}, 100);
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});
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});
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//SCALE
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describe("Tone.Split", function(){
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this.timeout(500);
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it("can be created and disposed", function(){
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var split = new Split();
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split.dispose();
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});
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it("merges two signal into one stereo signal and then split them back into two signals", function(done){
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//make an oscillator to drive the signal
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var sigL = new Signal(1);
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var sigR = new Signal(2);
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var merger = new Merge();
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var split = new Split();
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sigL.connect(merger.left);
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sigR.connect(merger.right);
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merger.connect(split);
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var recorderL = new Recorder();
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var recorderR = new Recorder();
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split.left.connect(recorderL);
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split.right.connect(recorderR);
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recorderL.record(0.05);
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recorderR.record(0.05);
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setTimeout(function(){
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//test the left side
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var lBuffer = recorderL.getFloat32Array()[0];
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for (var i = 0; i < lBuffer.length; i++){
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expect(lBuffer[i]).to.equal(1);
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}
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//test the right side
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var rBuffer = recorderR.getFloat32Array()[0];
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for (var j = 0; j < rBuffer.length; j++){
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expect(rBuffer[j]).to.equal(2);
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}
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done();
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}, 100);
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});
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});
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}); |