WebGL bouncing ball Stutter

Unity
1

Hello everyone, in my game, I’m encountering an issue with Unity and FMOD in WebGL builds. The problem is similar to what occurs in the bouncing ball FMOD demo: FMOD HTML5 Demo.

When I load the banks, start the scene, and then switch tabs, the game audio begins to stutter. I hypothesize this only happens to streamed audios, I wonder what is the common practice in these scenarios, if continue playing the music or pause/resume all events, also would appreciate any advice on which API functions to study for that matter.

Thank you in advance for any advice!

2

Hi,

An option when the game enters the background is to suspend the mixer: FMOD Engine | Core API Reference - System::mixerSuspend. This will maintain all internal states while reducing CPU usage to 0%. Mainly useful on mobile platforms. When the game resumes focus resume the mixer: FMOD Engine | Core API Reference - System::mixerResume.

However, we have to call JavaScript functions from Unity C# scripts:

  1. First set up a Java Plugin: Unit Docs | Set up your JavaScript plug-in
  2. As we use the MyGameInstance object in the .jslib file we need to initialize it in our index.html file: Unity Docs | Call JavaScript functions from Unity C# scripts - Call JavaScript functions from global scope.

Here is how I am pausing/resuming the mixer in my script:

public class TriggerPause : MonoBehaviour
{
	[DllImport("__Internal")]
	private static extern void AddListener();

	private bool paused = false;
	void Start()
	{
		AddListener();
	}

	void suspend()
	{
		if (paused)
		{
			FMODUnity.RuntimeManager.CoreSystem.mixerResume();
			paused = false;
		}
		else
		{
			FMODUnity.RuntimeManager.CoreSystem.mixerSuspend();
			paused = true;
		}
	}
}

Hope this helps!