Randomly selecting a sound and playing it regardless of SceneManager.LoadScene

Hello Unity developers,

I was hoping maybe you could shed some light on this.

I'd like to have a game in which sounds loop through the entire time (I created a list of AudioClips and it selects one sound from the list randomly). However, I want the sound to continue playing even after the level is restarted (via SceneManager.LoadScene).

I managed to create a list of AudioClips and randomly pick one sound and attach it to the AudioSource. But here I encounter a problem.

When I don't call DontDestroyOnLoad within my C# script, the sound restarts itself after level has restarted. I have tried using DontDestroyOnLoad function, but that creates a new Audio Listener every time that the level restarts (which gives me 2 sounds playing at the same time). I even tried calling the function that plays the sounds from Start() instead of Awake(), but with no avail.

How could I fix this?

Here's my code (attached to the MainCamera):

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4.  
5. public class MainCamera : MonoBehaviour
6. {
7.  
8.     public AudioClip[] songs;
9.  
10.     void Awake()
11.     {
12.         PlayRandom();
13.         DontDestroyOnLoad(this.gameObject); // creates new Audio Listener every time level restarts
14.     }
15.  
16.     void PlayRandom()
17.     {
18.         if (!GetComponent<AudioSource>().isPlaying)
19.         {
20.             GetComponent<AudioSource>().clip = songs[Random.Range(0, songs.Length)];
21.             GetComponent<AudioSource>().Play();
22.         }
23.     }
24. }
25.  

 

You could use a SingleTon class in your script that's instantiated only once and doesn't get destroyed when you're switching between scenes. This live session training will give you an idea about this method:

https://unity3d.com/learn/tutorials...ining-archive/persistence-data-saving-loading

Another, simpler method would be to add a variable "isPlaying" that you set when the sound starts playing that you can check before starting to play the sound.