Meteor DOMException：无法解码音频数据

Question

EDIT : I just created a new Meteor Project and it worked :D wow.But it still doesnt work on my core project..looks like i have different settings.

In my Meteor.js project i have 4 .mp3 -files located in public/sounds/xyz.mp3 . I load these .mp3 with :

 let soundRequest = new XMLHttpRequest();
    soundRequest.open('GET', this._soundPath, true);
    soundRequest.responseType = 'arraybuffer';
    let $this = this;
    soundRequest.onload = function () {
        Core.getAudioContext().decodeAudioData(soundRequest.response, function (buffer) {
            $this.source.buffer = buffer;
            $this.source.loop = true;
            $this.source.connect($this.panner);
        });
    };
soundRequest.send();

This WORKS on google Chrome , but when i build the app via meteor run android-device , i get the following error message : DOMException: Unable to decode audio data I wonder if this is a bug because loading .png or .jpg works just fine in the mobile version. I have not installed any packages beside meteor add crosswalk but deinstalling this doesnt help either.

Answer 1

You shouldn't need to do a http request to get a local resource. You can just refer to a local url. On the Android device the path is different. See this code:

  function getSound(file) {
    var sound = "/sounds/"+file;
    if (Meteor.isCordova) {
      var s;
      if (device.platform.toLowerCase() === "android") {
        sfile = cordova.file.applicationDirectory.replace('file://', '') + 'www/application/app' + sound;
      }
      else {
        sfile = cordova.file.applicationDirectory.replace('file://', '') + sound;
      }
      var s = new Media(
        sfile,
        function (success) {
          console.log("Got sound "+file+" ok ("+sfile+")");
          s.play();
        },
        function (err) {
          console.log("Get sound "+file+" ("+sfile+") failed: "+err);
        }
      );
    } else {
      var a = new Audio(sound);
      a.play();
    }
  }

On a device it loads the sound file asynchronously and then plays it. In the browser it just loads and plays it synchronously.

Answer 2

This web API is not supported on android device but works on chrome browser of android

Check browser specification in this link https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/decodeAudioData