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Javascript 吼叫者&x2B;ctx分析仪问题_Javascript_Audiocontext_Howler.js - Fatal编程技术网

Javascript 吼叫者&x2B;ctx分析仪问题

Javascript 吼叫者&x2B;ctx分析仪问题,javascript,audiocontext,howler.js,Javascript,Audiocontext,Howler.js,我正在尝试将音频分析器节点连接到我的howler设置 问题是我得到了一个由“128”填充的数组,这意味着没有声音,但声音正在播放 这是我的密码: var Sound = new Howl({ src: 'https://ia802508.us.archive.org/5/items/testmp3testfile/mpthreetest.mp3', html5: true, format: ['mp3']

我正在尝试将音频分析器节点连接到我的howler设置

问题是我得到了一个由“128”填充的数组,这意味着没有声音,但声音正在播放

这是我的密码:

  var Sound = new Howl({
              src: 'https://ia802508.us.archive.org/5/items/testmp3testfile/mpthreetest.mp3',
              html5: true,
              format: ['mp3']
          });

  Sound.play();

  // Create analyzer
  var analyser = Howler.ctx.createAnalyser();

  // Connect master gain to analyzer
  Howler.masterGain.connect(analyser);

  // Connect analyzer to destination
  analyser.connect(Howler.ctx.destination);

  // Creating output array (according to documentation https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Visualizations_with_Web_Audio_API)
  analyser.fftSize = 2048;
  var bufferLength = analyser.frequencyBinCount;
  var dataArray = new Uint8Array(bufferLength);

  // Get the Data array
  analyser.getByteTimeDomainData(dataArray);

  // Display array on time each 3 sec (just to debug)
  setInterval(function(){ 
    analyser.getByteTimeDomainData(dataArray);
    console.dir(dataArray);
  }, 3000);
以下是我的项目的一个小插曲:

我的实现基于以下来源:

在这个岗位上

已修复

因为之前,我使用radio stream测试我的播放器,所以我在Howl对象中将html5选项设置为true

删除此选项后,允许howler使用web音频API,从而修复了我的问题:

工作版本:

var Sound = new Howl({
              src: 'https://ia802508.us.archive.org/5/items/testmp3testfile/mpthreetest.mp3',
              format: ['mp3']
          });

  Sound.play();

  // Create analyzer
  var analyser = Howler.ctx.createAnalyser();

  // Connect master gain to analyzer
  Howler.masterGain.connect(analyser);

  // Connect analyzer to destination
  analyser.connect(Howler.ctx.destination);

  // Creating output array (according to documentation https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Visualizations_with_Web_Audio_API)
  analyser.fftSize = 2048;
  var bufferLength = analyser.frequencyBinCount;
  var dataArray = new Uint8Array(bufferLength);

  // Get the Data array
  analyser.getByteTimeDomainData(dataArray);

  // Display array on time each 3 sec (just to debug)
  setInterval(function(){ 
    analyser.getByteTimeDomainData(dataArray);
    console.dir(dataArray);
  }, 3000);