Callback each time a scatter instrument plays a new sound?

FMOD Studio
1

I’d like to use the playback from a scatter instrument to control stuff in our game (Unity). Is it possible to get a callback when the scatter instrument plays a new sound?

Thank you!

2

Hi,

The event callback FMOD_STUDIO_EVENT_CALLBACK_SOUND_PLAYED will be triggered each time a new sound is played. We have an example setting up a callback in Unity here: Unity Integration | Scripting Examples - Timeline Callbacks.

Hope this helps!

1 Like
3

Awesome, that sounds perfect!
I don’t see and example of the SOUND_PLAYED in that link though, am I missing something?

4

No, the example just outlined how to set up the callback. Here is an example just for SOUND_PLAYED

public class ScatterInstrumentCallbacks : MonoBehaviour
{
    public FMODUnity.EventReference eventReference = new FMODUnity.EventReference();
    private FMOD.Studio.EventInstance eventInstance = new FMOD.Studio.EventInstance();
    private FMOD.Studio.EVENT_CALLBACK eventCallback = null;

    // Start is called before the first frame update
    void Start()
    {
        eventCallback = new FMOD.Studio.EVENT_CALLBACK(ScatterInstrumentCallback);

        eventInstance = FMODUnity.RuntimeManager.CreateInstance(eventReference);
        if (eventInstance.isValid())
        {
            eventInstance.setCallback(eventCallback);
            eventInstance.start();
            eventInstance.release();
        }
    }

    [AOT.MonoPInvokeCallback(typeof(FMOD.Studio.EVENT_CALLBACK))]
    static FMOD.RESULT ScatterInstrumentCallback(FMOD.Studio.EVENT_CALLBACK_TYPE type, IntPtr instancePtr, IntPtr parameterPtr)
    {
        switch (type)
        {
            case FMOD.Studio.EVENT_CALLBACK_TYPE.SOUND_PLAYED:
                var sound = new FMOD.Sound(parameterPtr);
                sound.getName(out string name, 256);
                Debug.Log($"Sound Name {name}");
                break;
            default:
                break;
        }
        return FMOD.RESULT.OK;
    }
}

Hope this helps!

1 Like
5

Very helpful, thank you Connor!

1 Like