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How to use createSineWaveArray method in wpt

Best JavaScript code snippet using wpt

audioparam-testing.js

Source:audioparam-testing.js

...116  // Create a sine wave of the specified duration.117  function createReferenceSineArray(118      startTime, endTime, startValue, endValue, sampleRate) {119    // Ignore |startValue| and |endValue| for the sine wave.120    let curve = createSineWaveArray(121        endTime - startTime, freqHz, sineAmplitude, sampleRate);122    // Sample the curve appropriately.123    let frameInfo = getStartEndFrames(startTime, endTime, sampleRate);124    let startFrame = frameInfo.startFrame;125    let endFrame = frameInfo.endFrame;126    let length = Math.floor(endFrame - startFrame);127    let array = new Array(length);128    // v(t) = linearly interpolate between V[k] and V[k + 1] where k =129    // floor((N-1)/duration*(t - t0))130    let f = (length - 1) / (endTime - startTime);131    for (let k = 0; k < length; ++k) {132      let t = (startFrame + k) / sampleRate;133      let indexFloat = f * (t - startTime);134      let index = Math.floor(indexFloat);135      if (index + 1 < length) {136        let v0 = curve[index];137        let v1 = curve[index + 1];138        array[k] = v0 + (v1 - v0) * (indexFloat - index);139      } else {140        array[k] = curve[length - 1];141      }142    }143    return array;144  }145  // Create a sine wave of the given frequency and amplitude.  The sine wave is146  // offset by half the amplitude so that result is always positive.147  function createSineWaveArray(durationSeconds, freqHz, amplitude, sampleRate) {148    let length = timeToSampleFrame(durationSeconds, sampleRate);149    let signal = new Float32Array(length);150    let omega = 2 * Math.PI * freqHz / sampleRate;151    let halfAmplitude = amplitude / 2;152    for (let k = 0; k < length; ++k) {153      signal[k] = halfAmplitude + halfAmplitude * Math.sin(omega * k);154    }155    return signal;156  }157  // Return the difference between the starting value and the ending value for158  // time interval |timeIntervalIndex|.  We alternate between an end value that159  // is above or below the starting value.160  function endValueDelta(timeIntervalIndex) {161    if (timeIntervalIndex & 1) {...

Using AI Code Generation

1var wptools = require('./wptools.js');2var wav = require('wav');3var fs = require('fs');4var writer = new wav.FileWriter('test.wav', {5});6var sineWaveArray = wptools.createSineWaveArray(440, 2, 44100);7writer.write(sineWaveArray);8writer.end();9var wptools = (function() {10  var exports = {};11  exports.createSineWaveArray = function(frequency, duration, sampleRate) {12    var arrayLength = duration * sampleRate;13    var sineWaveArray = new Float32Array(arrayLength);14    var period = sampleRate / frequency;15    for (var i = 0; i < arrayLength; i++) {16      var time = i / sampleRate;17      sineWaveArray[i] = Math.sin(2 * Math.PI * frequency * time);18    }19    return sineWaveArray;20  };21  return exports;22}());

Using AI Code Generation

1var wptools = require('wptools');2var data = wptools.createSineWaveArray(100, 1, 0, 100);3console.log(data);4	var data = wptools.createSineWaveArray(100, 1, 0, 100);5	console.log(data);6	require_once('wptools.php');7	$data = wptools::createSineWaveArray(100, 1, 0, 100);8	print_r($data);9	require_once('wptools.php');10	$data = wptools::createSineWaveArray(100, 1, 0, 100);11	print_r($data);12	require_once('wptools.php');13	$data = wptools::createSineWaveArray(100, 1, 0, 100);14	print_r($data);15	require_once('wptools.php');16	$data = wptools::createSineWaveArray(100, 1, 0, 100);17	print_r($data);

Using AI Code Generation

1var wpt = require('wpt');2var sineWaveArray = wpt.createSineWaveArray(10000, 440, 1, 44100);3wpt.play(sineWaveArray);4var wpt = require('wpt');5var sineWaveArray = wpt.createSineWaveArray(10000, 440, 0.5, 44100);6wpt.play(sineWaveArray);7var wpt = require('wpt');8var sineWaveArray = wpt.createSineWaveArray(10000, 440, 1, 44100);9wpt.play(sineWaveArray);10var wpt = require('wpt');11var sineWaveArray = wpt.createSineWaveArray(10000, 440, 1, 44100);12wpt.play(sineWaveArray);

Using AI Code Generation

1var sineWaveArray = wptool.createSineWaveArray(100, 48000, 440, 1);2wptool.playSineWaveArray(sineWaveArray, 48000, 1);3wptool.createSineWaveArray = function (sampleCount, sampleRate, freq, amp) {4    var result = [];5    var period = sampleRate / freq;6    var max = sampleCount * 2;7    var amp = amp * 32767;8    for (var i = 0; i < max; i++) {9        result[i] = Math.floor(amp * Math.sin(i / period));10    }11    return result;12};13wptool.playSineWaveArray = function (sineWaveArray, sampleRate, channels) {14    var buffer = new ArrayBuffer(sineWaveArray.length * 2);15    var view = new DataView(buffer);16    for (var i = 0; i < sineWaveArray.length; i++) {17        view.setInt16(i * 2, sineWaveArray[i], true);18    }19    var wave = new RIFFWAVE();20    wave.header.sampleRate = sampleRate;21    wave.header.numChannels = channels;22    wave.Make(buffer);23    var audio = new Audio(wave.dataURI);24    audio.play();25};

Using AI Code Generation

1var wptd = require('wptd');2var samples = 100;3var frequency = 10;4var samplingFrequency = 1000;5var phase = 0;6var sineWaveArray = wptd.createSineWaveArray(samples, frequency, samplingFrequency, phase);7console.log(sineWaveArray);8var wptd = require('wptd');9var samples = 100;10var frequency = 10;11var samplingFrequency = 1000;12var phase = 90;13var sineWaveArray = wptd.createSineWaveArray(samples, frequency, samplingFrequency, phase);14console.log(sineWaveArray);15var wptd = require('wptd');16var samples = 100;17var frequency = 10;18var samplingFrequency = 1000;19var phase = 180;20var sineWaveArray = wptd.createSineWaveArray(samples, frequency, samplingFrequency, phase);21console.log(sineWaveArray);22var wptd = require('wptd');23var samples = 100;24var frequency = 10;25var samplingFrequency = 1000;26var phase = 270;27var sineWaveArray = wptd.createSineWaveArray(samples, frequency, samplingFrequency, phase);28console.log(sineWaveArray);

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