How to adjust game sound from UI Slider?

@kevinamoin23

Here 3 easy options: On Slider change ...

• create a global float value on one scene, retrieving it in the other one and applying that float to the Audio Source Volume (Globals stay across scenes, but get resettet when restarting or exiting the game)

• change the overall game volume with

   public float volume = 1.0f;  //1.0f = 100% Volume, 0.0f = 0% Volume (mute) | instead of a hardcoded value like "1.0f" you should get the slider value, so that it applies this to the audio
   AudioListener.volume = volume.Value;
  

• use PlayerPrefs, wich Values even stay when you leave or close the game:

   PlayerPrefs.SetFloat("Game Volume", 1.0f); //in the first scene; "Game Volume" is the name of the (unique) Key you create and the float value afterwards is the value of that Key, both can be changed to your liking
  

   public float volume = PlayerPrefs.GetFloat("Game Volume"); //in the other scene, then apply that value to the Audio Source Volume you want to control