Problems with Audio Sources

Questions & Answers
1

I recently decided to try to create a class which is (essentially) a song manager which would ideally allow me to create and manipulate songs to be different between each “loop” or change the song through the use of various triggers. Unfortunately, I ran into a bit of a snag – the audio source components I attached to base object do not want to play.

I’ll go step by step through the code:

	public AudioSource[] trackArray = new AudioSource[4];
	
	public float[] trackVolumeArray = new float[4];
	
	public float allTrackVolumeScale = 100.0f;
	
	public bool bClampValues = true;
	
	private int totalIndexOfVolumeArray;
	private int totalIndexOfTracksArray;

Nothing special here, I then initialize the variables in the Start():

void Start () 
	{
		int trackArrayIndex = 0;
		int volumeArrayIndex = 0;
		
		// Initialize the Audio Source files..
		foreach( AudioSource track in trackArray )
		{
			trackArray[trackArrayIndex] = gameObject.AddComponent ("AudioSource") as AudioSource;
			track.volume = 1f;
			track.enabled = true;
			trackArrayIndex++;
		}
		
		// Initialize the Volume Settings..
		foreach( float trackVolume in trackVolumeArray )
		{
			trackVolumeArray[volumeArrayIndex] = 100f;
			volumeArrayIndex++;
		}
		
		totalIndexOfTracksArray = trackArrayIndex;
		totalIndexOfVolumeArray = volumeArrayIndex;
	}

Side Note: Earlier I tried to set each float by referring to it as “trackVolume” to no success, since you cannot redefine it. Is it wrong to use a foreach and not actually use each component your referencing?

Lastly, in the update function, I call a “check playing” function, which for testing purposes I had to change to try to be more direct with no results. The ideal way of doing this would probably be another “foreach”.

	private void CheckPlaying()
	{
		if( trackArray[0].isPlaying != true )
		{
			trackArray[0].Play();
		}
		
		if( trackArray[1].isPlaying != true )
		{
			trackArray[1].Play();
		}
	}

I should also tell you that the AudioSource array has inputs in the inspector, and all I did from there is reference a audiosource that exists in the scene and is a child of the SongManager game object. Obviously, those AudioSources have an AudioClip attatched to them.

Is there any reason why this wouldn’t be working?

2

Hi!
what types of error messages do you get in the console?
What do you see happening in the editor?

I am betting that you don´t see several audisources added to the gameobject;
Unity wont let you add the same component twice to the same gameobject.
the line:
“trackArray[trackArrayIndex] = gameObject.AddComponent (“AudioSource”) as AudioSource;”
wont work.

(workaround is the create child gameobjects and add the component to them instead, one per child)