# change parameter in other script C#

**URL:** <https://qa.fmod.com/t/change-parameter-in-other-script-c/12882>\
**Category:** FMOD Studio\
**Created:** [December 16, 2016, 4:28am UTC](https://qa.fmod.com/t/change-parameter-in-other-script-c/12882 "2016-12-16T04:28:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Lagomorf81](https://avatars.discourse-cdn.com/v4/letter/l/d6d6ee/32.png) [@Lagomorf81](https://qa.fmod.com/u/Lagomorf81)\
**Post date:** [December 16, 2016, 4:28am UTC](https://qa.fmod.com/t/change-parameter-in-other-script-c/12882/1 "2016-12-16T04:28:37Z")

</div>

Hi every one  
Excuse me for my english!

Well. I’m using 2 scripts. in the first scritp (audio) I have “EventInstace” and “parameterInstance”, this lines is working perfect in this script but, I need change the parameter in other script (collider)… the question is… How I do that?

FIRST SCRIPT

public class audio : MonoBehaviour {

```
[FMODUnity.EventRef]
public string Eventomusica = "event:/musica";
public FMOD.Studio.EventInstance Audiomusica;
public FMOD.Studio.ParameterInstance ParamMusica;

void Start () {
    Audiomusica = FMODUnity.RuntimeManager.CreateInstance(Eventomusica);
    Audiomusica.getParameter("musica", out ParamMusica);
    Audiomusica.start();
}

// Update is called once per frame
void Update () {

}

```

}

SECOND SCRIPT

public class Colision : MonoBehaviour {

```
void Start () {
  
}

// Update is called once per frame
void Update () {
    
}

void OnTriggerEnter(Collider other)
{
    Parammusica.setValue(1.0);
}

```

}

---

<div class="post-metadata">

**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\
**Post date:** [December 18, 2016, 10:59pm UTC](https://qa.fmod.com/t/change-parameter-in-other-script-c/12882/2 "2016-12-18T22:59:01Z")

</div>

Have a look at the StudioParameterTrigger script, included with the integration, it takes in a StudioEventEmitter object and modifies a parameter.