# Stop (FMOD.Studio.STOP\_MODE.IMMEDIATE) doesn't work in Unity

**URL:** <https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585>\
**Category:** Unity\
**Created:** [May 7, 2024, 4:54am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585 "2024-05-07T04:54:09Z")\
**Posts on this page:** 9\
**Page:** 1

<div class="post-metadata">

**Author:** ![Yiqi2024](https://avatars.discourse-cdn.com/v4/letter/y/c89c15/32.png) [@Yiqi2024](https://qa.fmod.com/u/Yiqi2024)\
**Post date:** [May 7, 2024, 4:54am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/1 "2024-05-07T04:54:09Z")

</div>

![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/3/39a67c9a6f38675dc20e37735dd21ac836ab2ea0.png)

As shown above, when the gameover, the music should stop  
But the code"stop (FMOD.Studio.STOP\_MODE.IMMEDIATE)"doesn’t work

---

<div class="post-metadata">

**Author:** ![Connor\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/connor_fmod/32/3685_2.png) [@Connor\_FMOD](https://qa.fmod.com/u/Connor_FMOD)\
**Post date:** [May 8, 2024, 12:39am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/2 "2024-05-08T00:39:50Z")

</div>

Hi,

What version of the FMOD integration are you using?

Could you please add an [FMOD\_RESULT](https://fmod.com/docs/2.02/api/core-api-common.html#fmod_result) to the `musicEventInstance.stop` and `.release` calls and share their results?

Most FMOD functions will return a `result` which can be very useful for debugging unexpected behavior.

---

<div class="post-metadata">

**Author:** ![Yiqi2024](https://avatars.discourse-cdn.com/v4/letter/y/c89c15/32.png) [@Yiqi2024](https://qa.fmod.com/u/Yiqi2024)\
**Post date:** [May 8, 2024, 5:12am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/3 "2024-05-08T05:12:05Z")

</div>

I’m using FMOD Studioo2.02.21  
And for the intergration. I remember I download it on Unity Asset store  
Thanks for your suggestion  
It’s my first time to use FMOD  
To be honest,I don’t know how to do even though you gave very clear instruction

I only know I should enum the result,right?

---

<div class="post-metadata">

**Author:** ![Connor\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/connor_fmod/32/3685_2.png) [@Connor\_FMOD](https://qa.fmod.com/u/Connor_FMOD)\
**Post date:** [May 9, 2024, 12:35am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/4 "2024-05-09T00:35:54Z")

</div>

You can check the integration version in the `About FMOD` option:  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/8/8b930b2793ccb78edb3563620f4e23df50619fc6.png)  
Could you please try adding the following to your script:

```auto
print("StopMusic");
var result = musicEventInstance.stop(FMOD.Studio.STOP_MODE.IMMEDIATE);
if (result != FMOD.RESULT.OK)
{
	Debug.Log($"Failed to stop event with result: {result}");
}
result = musicEventInstance.release();
if (result != FMOD.RESULT.OK)
{
	Debug.Log($"Failed to stop event with result: {result}");
}

```

This will log the error message if the `stop()` function does not return the `FMOD.RESULT.OK`.

Hope this helps!

---

<div class="post-metadata">

**Author:** ![Yiqi2024](https://avatars.discourse-cdn.com/v4/letter/y/c89c15/32.png) [@Yiqi2024](https://qa.fmod.com/u/Yiqi2024)\
**Post date:** [May 9, 2024, 5:25am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/5 "2024-05-09T05:25:40Z")

</div>

I tried the code,  
It says" ERR\_INVALID\_HANDLE"  
And I’m using Version: 2.02.21

---

<div class="post-metadata">

**Author:** ![Connor\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/connor_fmod/32/3685_2.png) [@Connor\_FMOD](https://qa.fmod.com/u/Connor_FMOD)\
**Post date:** [May 9, 2024, 6:26am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/6 "2024-05-09T06:26:05Z")

</div>

That indicates that `musicEventInstance` is no longer connected to a valid instance.

Would it be possible to get the full code you’re using to play and stop the event?

---

<div class="post-metadata">

**Author:** ![Yiqi2024](https://avatars.discourse-cdn.com/v4/letter/y/c89c15/32.png) [@Yiqi2024](https://qa.fmod.com/u/Yiqi2024)\
**Post date:** [May 9, 2024, 6:26am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/7 "2024-05-09T06:26:39Z")

</div>

And I forgot to tell you there’re another two errors"Found more than one FMOD Events instance " and"Found more than one Audio Manager"

The audio manager script:

```auto
private void Awake()
    {
        if(instance != null)
        {
            Debug.LogError("Found more than one Audio Manager");
        }

        instance = this;
    }

```

The FMOD Events script which has error is as same as audio manger’s

---

<div class="post-metadata">

**Author:** ![Yiqi2024](https://avatars.discourse-cdn.com/v4/letter/y/c89c15/32.png) [@Yiqi2024](https://qa.fmod.com/u/Yiqi2024)\
**Post date:** [May 9, 2024, 6:30am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/8 "2024-05-09T06:30:46Z")

</div>

Audio Manager:

```auto
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using FMODUnity;
using FMOD.Studio;
public class AudioManager : MonoBehaviour
{
    public static AudioManager instance{get;private set;}
    private List<EventInstance> eventInstances;
    private EventInstance musicEventInstance;
    private void InitializeMusic(EventReference musicEventReference)
    {
        musicEventInstance = CreateInstance(musicEventReference);
        musicEventInstance.start();
    }
    public EventInstance CreateInstance(EventReference eventReference)
    {
        EventInstance eventInstance = RuntimeManager.CreateInstance(eventReference);
        return eventInstance;   
    }

    private void Start()
    {
        InitializeMusic(FMODEvents.instance.music);
        DontDestroyOnLoad(GameObject.Find("AudioManager"));
    }

    private void Awake()
    {
        if(instance != null)
        {
            Debug.LogError("Found more than one Audio Manager");
        }

        instance = this;
    }

    public void PlayOneShot(EventReference sound,Vector3 worldPos)
    {
        RuntimeManager.PlayOneShot(sound,worldPos);
    }
   
}

```

FMOD Events:

```auto
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using FMODUnity;

public class FMODEvents : MonoBehaviour
{
    [field:Header("Coin SFX")]
    [field:SerializeField] public EventReference coinCollected{get;private set;}

    [field:Header("Shoot SFX")]
    [field:SerializeField] public EventReference playerShoot{get;private set;}

    [field:Header("Death SFX")]
    [field:SerializeField] public EventReference playerDeath{get;private set;}

    [field:Header("Door SFX")]
    [field:SerializeField] public EventReference doorOpen{get;private set;}

    [field:Header("Enemy SFX")]
    [field:SerializeField] public EventReference enemyHit{get;private set;}

    [field:Header("Music")]
    [field:SerializeField] public EventReference music{get;private set;}

    public static FMODEvents instance{get;private set;}

    private void Awake()
    {
        if(instance != null)
        {
            Debug.LogError("Found more than one FMOD Events instance ");
        }

        instance = this;
    }
}

```

The place I want to stop the music event is when the "Gameover"screen show up.

```auto
 if (collision.gameObject.CompareTag("Enemy") && canMove)
        {

            HitpointsHeart[HitPoints - 1].GetComponent<Animator>().enabled = true;
            AudioManager.instance.PlayOneShot(FMODEvents.instance.enemyHit,this.transform.position);
            HitPoints--;
            if (HitPoints <= 0)
            {
                HitPoints = 0;
                AudioManager.instance.PlayOneShot(FMODEvents.instance.playerDeath,this.transform.position);
                Debug.Log("Game_Over");
                Invoke("Gameover", 1.3f);
                print("StopMusic");
                var result = musicEventInstance.stop(FMOD.Studio.STOP_MODE.IMMEDIATE);
                if (result != FMOD.RESULT.OK)
                {
	                Debug.Log($"Failed to stop event with result: {result}");
                }
                result = musicEventInstance.release();
                if (result != FMOD.RESULT.OK)
                {
	                Debug.Log($"Failed to stop event with result: {result}");
                }

       
            }
            // Prevent further movement temporarily
            canMove = false;

            // Apply hit effect immediately
            ApplyHitEffect(collision);

            // Start a coroutine to enable movement after a delay
            StartCoroutine(EnableMovementAfterDelay());
        }

```

---

<div class="post-metadata">

**Author:** ![Connor\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/connor_fmod/32/3685_2.png) [@Connor\_FMOD](https://qa.fmod.com/u/Connor_FMOD)\
**Post date:** [May 13, 2024, 12:12am UTC](https://qa.fmod.com/t/stop-fmod-studio-stop-mode-immediate-doesnt-work-in-unity/21585/9 "2024-05-13T00:12:15Z")

</div>

Thank you for the code.

You can check an event instance is valid before interacting with it by using: [EventInstance::isValid](https://fmod.com/docs/2.02/api/studio-api-eventinstance.html#studio_eventinstance_isvalid).

It could be added here:

```auto
if (HitPoints <= 0)
{
    HitPoints = 0;
    AudioManager.instance.PlayOneShot(FMODEvents.instance.playerDeath,this.transform.position);
    Debug.Log("Game_Over");
    Invoke("Gameover", 1.3f);
    if (musicEventInstance.isValid())
    {
        print("StopMusic");
        var result = musicEventInstance.stop(FMOD.Studio.STOP_MODE.IMMEDIATE);
        if (result != FMOD.RESULT.OK)
        {
            Debug.Log($"Failed to stop event with result: {result}");
        }
        result = musicEventInstance.release();
        if (result != FMOD.RESULT.OK)
        {
            Debug.Log($"Failed to stop event with result: {result}");
        }
    }
    else
    {
        Debug.Log("musicEventInstance is not valid");
    }
}

```

How is the `musicEventInstance` being set in the class that contains this function? I can see it being set in the `AudioManager`, however, that class does not contain this `if()` function.

Losing the reference to the valid instance may be caused by Unity’s shallow copying.

I was able to stop the `musicEventInstance` in the `AudioManager` as that instance is a member variable of that class.