working without bootloader scene?

Is the only way to make background music continue to play across scenes, to turn on persist across scenes?

If I have a masteraudio prefab in every single scene with dontdestroy ticked, is there much performance overhead having the original destroy the new instance in the scene?

I'm guessing masteraudio checks to see if another masteraudio exists, BEFORE the dynamic sound groups look for the masteraudio to add to?

Thanks

Hi
I am revisting this issue again. Ideally we want an empty MasterAudio prefab with dontdestory in our bootstrap scene, and not have one per scene getting destroyed as we have lots of scenes and quick changes.

If you start the game from bootstrap, all is fine. If I start the game from another scene in editor, I need there to be a masteraudio prefab present.

I made this script to add a MA prefab into the scene if the editor play mode changes to play.


[InitializeOnLoadAttribute]
public static class AddMasterAudioOnPlay
{
   
   static Scene scene;
   
   static AddMasterAudioOnPlay()
   {
       EditorApplication.playModeStateChanged += ChangePlayModeState;
   }
   private static void ChangePlayModeState(PlayModeStateChange state)
   {
       if (state == PlayModeStateChange.EnteredPlayMode)
       {
           // which scene
           scene = SceneManager.GetActiveScene();
           int sceneIndex = scene.buildIndex;
           // only add masteraudio prefab to scene in editor if starting scene is higher than 3
           if (sceneIndex > 3)
           {
               Debug.Log("Add MasterAudio via editor scene=" + sceneIndex);
               Object maPrefab =
                   AssetDatabase.LoadAssetAtPath("Assets/Prefabs/MasterAudio.prefab", typeof(GameObject));
               if (maPrefab != null)
               {
                   PrefabUtility.InstantiatePrefab(maPrefab);
               }
           }
       }
   }
}


It works, however none of the dynamic sound groups in the scene are added to masteraudio. Any ideas? Thanks