OfflineAudioContext: complete event

complete当离线音频上下文的呈现完成时，将触发OfflineAudioContext接口的事件。

处理完成后，您可能希望使用oncomplete处理程序提示用户现在可以播放音频，并启用播放按钮：

offlineAudioCtx.addEventListener('complete',()=> {
  console.log('Offline audio processing now complete');
  showModalDialog('Song processed and ready to play');
  playBtn.disabled = false;
})

You can also set up the event handler using the OfflineAudioContext.oncomplete property:

offlineAudioCtx.oncomplete = function() {
  console.log('Offline audio processing now complete');
  showModalDialog('Song processed and ready to play');
  playBtn.disabled = false;
}

• 离线音频上下文.oncomplete
• Web Audio API