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How to use getChannelGain method in wpt

Best JavaScript code snippet using wpt

stereopanner-testing.js

Source:stereopanner-testing.js

...9  // Total render length for all of our nodes.10  let gRenderLength = gTimeStep * (gNodesToCreate + 1) + gSampleRate;11  // Calculates channel gains based on equal power panning model.12  // See: http://webaudio.github.io/web-audio-api/#panning-algorithm13  function getChannelGain(pan, numberOfChannels) {14    // The internal panning clips the pan value between -1, 1.15    pan = Math.min(Math.max(pan, -1), 1);16    let gainL, gainR;17    // Consider number of channels and pan value's polarity.18    if (numberOfChannels == 1) {19      let panRadian = (pan * 0.5 + 0.5) * PI_OVER_TWO;20      gainL = Math.cos(panRadian);21      gainR = Math.sin(panRadian);22    } else {23      let panRadian = (pan <= 0 ? pan + 1 : pan) * PI_OVER_TWO;24      if (pan <= 0) {25        gainL = 1 + Math.cos(panRadian);26        gainR = Math.sin(panRadian);27      } else {28        gainL = Math.cos(panRadian);29        gainR = 1 + Math.sin(panRadian);30      }31    }32    return {gainL: gainL, gainR: gainR};33  }34  /**35   * Test implementation class.36   * @param {Object} options Test options37   * @param {Object} options.description Test description38   * @param {Object} options.numberOfInputChannels Number of input channels39   */40  function Test(should, options) {41    // Primary test flag.42    this.success = true;43    this.should = should;44    this.context = null;45    this.prefix = options.prefix;46    this.numberOfInputChannels = (options.numberOfInputChannels || 1);47    switch (this.numberOfInputChannels) {48      case 1:49        this.description = 'Test for mono input';50        break;51      case 2:52        this.description = 'Test for stereo input';53        break;54    }55    // Onset time position of each impulse.56    this.onsets = [];57    // Pan position value of each impulse.58    this.panPositions = [];59    // Locations of where the impulses aren't at the expected locations.60    this.errors = [];61    // The index of the current impulse being verified.62    this.impulseIndex = 0;63    // The max error we allow between the rendered impulse and the64    // expected value.  This value is experimentally determined.  Set65    // to 0 to make the test fail to see what the actual error is.66    this.maxAllowedError = 1.3e-6;67    // Max (absolute) error and the index of the maxima for the left68    // and right channels.69    this.maxErrorL = 0;70    this.maxErrorR = 0;71    this.maxErrorIndexL = 0;72    this.maxErrorIndexR = 0;73    // The maximum value to use for panner pan value. The value will range from74    // -panLimit to +panLimit.75    this.panLimit = 1.0625;76  }77  Test.prototype.init = function() {78    this.context = new OfflineAudioContext(2, gRenderLength, gSampleRate);79  };80  // Prepare an audio graph for testing. Create multiple impulse generators and81  // panner nodes, then play them sequentially while varying the pan position.82  Test.prototype.prepare = function() {83    let impulse;84    let impulseLength = Math.round(gTimeStep * gSampleRate);85    let sources = [];86    let panners = [];87    // Moves the pan value for each panner by pan step unit from -2 to 2.88    // This is to check if the internal panning value is clipped properly.89    let panStep = (2 * this.panLimit) / (gNodesToCreate - 1);90    if (this.numberOfInputChannels === 1) {91      impulse = createImpulseBuffer(this.context, impulseLength);92    } else {93      impulse = createStereoImpulseBuffer(this.context, impulseLength);94    }95    for (let i = 0; i < gNodesToCreate; i++) {96      sources[i] = this.context.createBufferSource();97      panners[i] = this.context.createStereoPanner();98      sources[i].connect(panners[i]);99      panners[i].connect(this.context.destination);100      sources[i].buffer = impulse;101      panners[i].pan.value = this.panPositions[i] = panStep * i - this.panLimit;102      // Store the onset time position of impulse.103      this.onsets[i] = gTimeStep * i;104      sources[i].start(this.onsets[i]);105    }106  };107  Test.prototype.verify = function() {108    let chanL = this.renderedBufferL;109    let chanR = this.renderedBufferR;110    for (let i = 0; i < chanL.length; i++) {111      // Left and right channels must start at the same instant.112      if (chanL[i] !== 0 || chanR[i] !== 0) {113        // Get amount of error between actual and expected gain.114        let expected = getChannelGain(115            this.panPositions[this.impulseIndex], this.numberOfInputChannels);116        let errorL = Math.abs(chanL[i] - expected.gainL);117        let errorR = Math.abs(chanR[i] - expected.gainR);118        if (errorL > this.maxErrorL) {119          this.maxErrorL = errorL;120          this.maxErrorIndexL = this.impulseIndex;121        }122        if (errorR > this.maxErrorR) {123          this.maxErrorR = errorR;124          this.maxErrorIndexR = this.impulseIndex;125        }126        // Keep track of the impulses that didn't show up where we expected127        // them to be.128        let expectedOffset =...

MixerGainNode.js

Source:MixerGainNode.js

...11      let mixer = new MixerGainNode(audioContext);12      assert(mixer instanceof MixerGainNode);13    });14  });15  describe("#getChannelGain(channel: number): AudioParam", () => {16    it("works", () => {17      let mixer = new MixerGainNode(audioContext);18      assert(mixer.getChannelGain(0) instanceof global.AudioParam);19      assert(mixer.getChannelGain(0) === mixer[CHANNELS][0].gain);20      assert(mixer.getChannelGain(1) instanceof global.AudioParam);21      assert(mixer.getChannelGain(1) === mixer[CHANNELS][1].gain);22    });23  });24  describe("#connect(...args): void", () => {25    it("works", () => {26      let mixer = new MixerGainNode(audioContext);27      mixer.connect(audioContext.destination);28      assert(audioContext.destination.$isConnectedFrom(mixer[CHANNELS][0]));29      assert(audioContext.destination.$isConnectedFrom(mixer[CHANNELS][1]));30    });31  });32  describe("#disconnect(...args): void", () => {33    it("works", () => {34      let mixer = new MixerGainNode(audioContext);35      mixer.connect(audioContext.destination);36      mixer.disconnect();37      assert(!audioContext.destination.$isConnectedFrom(mixer[CHANNELS][0]));38      assert(!audioContext.destination.$isConnectedFrom(mixer[CHANNELS][1]));39    });40  });41  describe("#dispose(): void", () => {42    it("works", () => {43      let mixer = new MixerGainNode(audioContext);44      mixer.dispose();45      assert.throws(() => {46        mixer.dispose();47      });48    });49  });50  describe("connected from", () => {51    it("works", () => {52      let oscillator1 = audioContext.createOscillator();53      let oscillator2 = audioContext.createOscillator();54      let mixer = new MixerGainNode(audioContext);55      oscillator1.connect(mixer, 0, 0);56      oscillator2.connect(mixer, 0, 1);57      assert(mixer[CHANNELS][0].$isConnectedFrom(oscillator1));58      assert(!mixer[CHANNELS][0].$isConnectedFrom(oscillator2));59      assert(mixer[CHANNELS][1].$isConnectedFrom(oscillator2));60      assert(!mixer[CHANNELS][1].$isConnectedFrom(oscillator1));61    });62  });63  describe("graph", () => {64    it("works", () => {65      let mixer = new MixerGainNode(audioContext, 4);66      mixer.getChannelGain(0).value = 0.0;67      mixer.getChannelGain(1).value = 0.1;68      mixer.getChannelGain(2).value = 0.2;69      mixer.getChannelGain(3).value = 0.3;70      mixer.connect(audioContext.destination);71      assert.deepEqual(audioContext.destination.toJSON(), {72        name: "AudioDestinationNode",73        inputs: [74          {75            name: "GainNode",76            gain: {77              value: 0,78              inputs: []79            },80            inputs: []81          },82          {83            name: "GainNode",...

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2console.log(wptoolkit.getChannelGain('1'));3console.log(wptoolkit.getChannelGain('2'));4console.log(wptoolkit.getChannelGain('3'));5console.log(wptoolkit.getChannelGain('4'));6console.log(wptoolkit.getChannelGain('5'));7console.log(wptoolkit.getChannelGain('6'));8console.log(wptoolkit.getChannelGain('7'));9console.log(wptoolkit.getChannelGain('8'));10var wptoolkit = require('wptoolkit');11wptoolkit.setChannelGain('1','0.5');12wptoolkit.setChannelGain('2','0.5');13wptoolkit.setChannelGain('3','0.5');14wptoolkit.setChannelGain('4','0.5');15wptoolkit.setChannelGain('5','0.5');16wptoolkit.setChannelGain('6','0.5');17wptoolkit.setChannelGain('7','0.5');18wptoolkit.setChannelGain('8','0.5');19var wptoolkit = require('wptoolkit');20console.log(wptoolkit.getChannelState('1'));21console.log(wptoolkit.getChannelState('2'));22console.log(wptoolkit.getChannelState('3'));23console.log(wptoolkit.getChannelState('4'));24console.log(wptoolkit.getChannelState('5'));25console.log(wptoolkit.getChannelState('6'));26console.log(wptoolkit.getChannelState('7'));27console.log(wptoolkit.getChannelState('8'));28var wptoolkit = require('wptoolkit');29wptoolkit.setChannelState('1','1');30wptoolkit.setChannelState('2','1');31wptoolkit.setChannelState('3','1');32wptoolkit.setChannelState('4','1');33wptoolkit.setChannelState('5','1');34wptoolkit.setChannelState('6','1');35wptoolkit.setChannelState('7','1');36wptoolkit.setChannelState('8','1');

Using AI Code Generation

1var wptk = require('wptoolkit');2var wp = new wptk.WPToolkit();3wp.getChannelGain(1, function (err, gain) {4    if (err) {5        console.log("Error: " + err);6    } else {7        console.log("Gain: " + gain);8    }9});10var wptk = require('wptoolkit');11var wp = new wptk.WPToolkit();12wp.getChannelGain(1, function (err, gain) {13    if (err) {14        console.log("Error: " + err);15    } else {16        console.log("Gain: " + gain);17    }18});

Using AI Code Generation

1var WPTK = require('./wptoolkit');2var wptk = new WPTK();3var channel = 1;4var gain = wptk.getChannelGain(channel);5console.log('Gain for channel ' + channel + ' is ' + gain);6var WPTK = require('./wptoolkit');7var wptk = new WPTK();8var channel = 1;9var gain = 10;10wptk.setChannelGain(channel, gain);11var WPTK = require('./wptoolkit');12var wptk = new WPTK();13var channel = 1;14var offset = wptk.getChannelOffset(channel);15console.log('Offset for channel ' + channel + ' is ' + offset);16var WPTK = require('./wptoolkit');17var wptk = new WPTK();18var channel = 1;19var offset = 10;20wptk.setChannelOffset(channel, offset);21var WPTK = require('./wptoolkit');22var wptk = new WPTK();23var channel = 1;24var coupling = wptk.getChannelCoupling(channel);25console.log('Coupling for channel ' + channel + ' is ' + coupling);26var WPTK = require('./wptoolkit');27var wptk = new WPTK();28var channel = 1;29var coupling = 'AC';30wptk.setChannelCoupling(channel, coupling);

Using AI Code Generation

1var wptk = require('wptoolkit');2var device = wptk.getDevice(0);3var channel = device.getChannel(0);4var gain = channel.getGain();5console.log("Gain of channel 0: " + gain);6var wptk = require('wptoolkit');7var device = wptk.getDevice(0);8var channel = device.getChannel(0);9channel.setGain(0.5);10console.log("Gain of channel 0: " + channel.getGain());11var wptk = require('wptoolkit');12var device = wptk.getDevice(0);13var channel = device.getChannel(0);14var offset = channel.getOffset();15console.log("Offset of channel 0: " + offset);16var wptk = require('wptoolkit');17var device = wptk.getDevice(0);18var channel = device.getChannel(0);19channel.setOffset(0.5);20console.log("Offset of channel 0: " + channel.getOffset());21var wptk = require('wptoolkit');22var device = wptk.getDevice(0);23var channel = device.getChannel(0);24var coupling = channel.getCoupling();25console.log("Coupling of channel 0: " + coupling);26var wptk = require('wptoolkit');27var device = wptk.getDevice(0);

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2var channel = "2.4";3var gain = wptoolkit.getChannelGain(channel);4console.log(gain);5var wptoolkit = require('wptoolkit');6var channel = "5";7var gain = wptoolkit.getChannelGain(channel);8console.log(gain);9var wptoolkit = require('wptoolkit');10var channel = "5.8";11var gain = wptoolkit.getChannelGain(channel);12console.log(gain);13var wptoolkit = require('wptoolkit');14var channel = "5.5";15var gain = wptoolkit.getChannelGain(channel);16console.log(gain);17var wptoolkit = require('wptoolkit');18var channel = "5.5";19var gain = wptoolkit.getChannelGain(channel);20console.log(gain);21var wptoolkit = require('wptoolkit');22var channel = "5.5";23var gain = wptoolkit.getChannelGain(channel);24console.log(gain);25var wptoolkit = require('wptoolkit');26var channel = "5.5";27var gain = wptoolkit.getChannelGain(channel);28console.log(gain);29var wptoolkit = require('wptoolkit');30var channel = "5.5";31var gain = wptoolkit.getChannelGain(channel);32console.log(gain);

Using AI Code Generation

1var wpToolkit = require('wptoolkit');2var myWp = new wpToolkit();3var channelGain = myWp.getChannelGain();4console.log(channelGain);5var wpToolkit = require('wptoolkit');6var myWp = new wpToolkit();7var channelGain = myWp.setChannelGain(0);8console.log(channelGain);9var wpToolkit = require('wptoolkit');10var myWp = new wpToolkit();11var channel = myWp.getChannel();12console.log(channel);13var wpToolkit = require('wptoolkit');14var myWp = new wpToolkit();15var channel = myWp.setChannel(1);16console.log(channel);17var wpToolkit = require('wptoolkit');18var myWp = new wpToolkit();19var channelWidth = myWp.getChannelWidth();20console.log(channelWidth);

Using AI Code Generation

1var wptb = new WPTB();2var gain = wptb.getChannelGain(1);3console.log("Gain value of channel 1: " + gain);4wptb.setChannelGain(1, 0.5);5gain = wptb.getChannelGain(1);6console.log("New gain value of channel 1: " + gain);7wptb.setChannelGain(1, 0.8);8gain = wptb.getChannelGain(1);9console.log("New gain value of channel 1: " + gain);10wptb.setChannelGain(1, 1);11gain = wptb.getChannelGain(1);12console.log("New gain value of channel 1: " + gain);

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