[英]playback progress of audio - SoundJS
How do I get continual playback progress of an audio file, using SoundJS? 如何使用SoundJS获得音频文件的连续播放进度?
I need to animate a graphic matching to play progess. 我需要为图形匹配设置动画以播放进度。
I have looked at the documentation and cannot see a playback progress event. 我查看了文档,但看不到播放进度事件。
The answer is to roll you own: 答案是让自己拥有一席之地:
//declare global var for Sound instance
var soundInstance;
function startPlayback(){
soundInstance = createjs.Sound.play("audio/sound.mp3", {loop: 0});
createjs.Ticker.addEventListener("tick", tick);
createjs.Ticker.setInterval(TICK_FREQ);
}
function tick(evt) {
var progress = soundInstance.position/soundInstance.duration;
//do something with progress
}
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