How to adjust In-Game volume in C#?

Questions & Answers
1

Hello! I am currently trying to figure out how to adjust the In-Game volume via a GUI Slider. I’ve done this before, but my hard-drive was wiped so I lost my script and a lot other files. I remember that I used a hSliderValue to adjust a AudioSource component to turn the volume up or down. How would I do this? I wrote some code to attempt this but it did not work. Here is the code(In the “AudioOptions” void)
using UnityEngine;
using System.Collections;

public class GUI_menu : MonoBehaviour {
	private string CurMenu;
	public float hSliderValue = 0.0f;
	// Use this for initialization
	void Start () {
		CurMenu = "Main";
	}
	
	// Update is called once per frame
	void Update () {
		AudioListener.volume = hSliderValue/10.0;
	}

	void ToMenu(string menu)
	{
		CurMenu = menu;
	}

	void OnGUI()
	{
		if(CurMenu == "Main")
			Main ();
		if(CurMenu == "Options")
			Options ();
		if(CurMenu == "GraphOptions")
			GraphOptions ();
    }

	private void Main()
	{
		if(GUI.Button(new Rect(0, 0, 128, 32),"Play Limp"))
		{
			Application.LoadLevel("Level 1");
		}

		if(GUI.Button(new Rect(0, 36, 128, 32),"Options"))
		{
			ToMenu("Options");
		}
	}


	//Option menus

	private void Options()
	{
		if(GUI.Button(new Rect(0, 0, 128, 32),"Graphic options"))
		{
			ToMenu("GraphOptions");
		}

		if(GUI.Button(new Rect(0, 32, 128, 32),"Audio options"))
		{
			ToMenu("AudioOptions");
		}
	}

	private void GraphOptions()
	{
		if(GUI.Button(new Rect(0,0,128,32),"Very Low"))
		{
			QualitySettings.currentLevel = QualityLevel.Fastest;
		}
		if(GUI.Button(new Rect(0,32,128,32),"Low"))
		{
			QualitySettings.currentLevel = QualityLevel.Fast;
		}
		if(GUI.Button(new Rect(0,64,128,32),"Good"))
		{
			QualitySettings.currentLevel = QualityLevel.Good;
		}
		if(GUI.Button(new Rect(0,94,128,32),"Default"))
		{
			QualitySettings.currentLevel = QualityLevel.Fantastic;
		}
		if(GUI.Button(new Rect(0,126,128,32),"Very Good"))
		{
			QualitySettings.currentLevel = QualityLevel.Beautiful;
		}
		if(GUI.Button(new Rect(0,164,128,32),"Back"))
		{
			ToMenu("Main");
		}
	}

	private void AudioOptions()
	{
		hSliderValue = GUI.HorizontalSlider (Rect (370, 220, 546, 30), hSliderValue, 0.0, 10.0);
	}
}

Any help? Thanks in advance! :smiley:

2

You need to set audio volume only once, move your audio listener volume setting inside audio option method like

      //
    void Update () {
       //AudioListener.volume = hSliderValue/10.0;
    }


   private void AudioOptions()
    {
       hSliderValue = GUI.HorizontalSlider (Rect (370, 220, 546, 30), hSliderValue, 0.0, 10.0);
       AudioListener.volume = hSliderValue/10.0;
    }