Dart web audio noteOn internal error - audio

Question

I'm trying to get dart to play an audio, but everytime I try to play the Audio I get the following error:
Internal error: 'dart:_blink': error: line 248: native function 'AudioBufferSourceNode_noteOn_Callback_RESOLVER_STRING_1_double' (2 arguments) cannot be found
Native_AudioBufferSourceNode_noteOn_Callback(mthis, when) native "AudioBufferSourceNode_noteOn_Callback_RESOLVER_STRING_1_double";
This is the my Audio class:
class Audio {
static List<Audio> _loadQueue = new List<Audio>();
String _url;
bool loaded = false;
AudioBufferSourceNode _source;
Audio(this._url) {
if (audioContext == null) {
_loadQueue.add(this);
}
else {
load();
}
}
void load() {
print("Loading sound: " + _url);
HttpRequest req = new HttpRequest();
req.open("GET", _url);
req.responseType = "arraybuffer";
req.onLoad.listen((e) {
_source = audioContext.createBufferSource();
print("Found sound: " + _url + ". Decoding...");
audioContext.decodeAudioData(req.response).then((buffer) {
_source.buffer = buffer;
_source.connectNode(gainNode);
_source.connectNode(audioContext.destination);
loaded = true;
});
});
req.send();
}
void play() {
if (!loaded) { return; }
_source.noteOn(0);
}
void stop() {
if (!loaded) return;
_source.noteOff(0);
}
static void loadAll() {
_loadQueue.forEach((e) {e.load();});
}
}
The audio context and gain node is created in another class like this:
audioContext = new AudioContext();
gainNode = audioContext.createGain();
gainNode.connectNode(audioContext.destination);
Audio.loadAll();
I don't know what the problem is, especially since it says it's internal, and that it's missing arguments, but the noteOn function only takes one argument.

Answer 1

I was facing the same issue using dart 1.6. It seems noteOn has been replaced by start in the latest spec/implementation.
The AudioBufferSourceNode Interface (http://webaudio.github.io/web-audio-api/#the-audiobuffersourcenode-interface)
Porting notes (https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Porting_webkitAudioContext_code_to_standards_based_AudioContext#Changes_to_methods_used_to_start.2Fstop_AudioBufferSourceNode_and_OscillatorNode)