Audio Snapshot TransitionTo Not Working in Awake and Start

Questions & Answers
1

Is there any reason why this doesn’t work? I think it might be a BUG.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Audio;

public class JKDefaultSnapshot : MonoBehaviour
{

	public List<AudioMixerSnapshot> snapshots;
	public float transitionTime;

	void Awake ()
	{
		foreach(var snapshot in snapshots)
			snapshot.TransitionTo(transitionTime);
	}
}
2

I got around this issue by calling the transition a frame later. Start a coroutine in your awake, wait a frame then fade in. Here is how your script would look.

	using System.Collections;
	using System.Collections.Generic;
	using UnityEngine;
	using UnityEngine.Audio;

	public class JKDefaultSnapshot : MonoBehaviour
	{
		public List<AudioMixerSnapshot> snapshots;
		public float transitionTime;

		void Awake ()
		{
			StartCoroutine( TransitionToSnapshots() );
		}

		private IEnumerator TransitionToSnapshots()
		{
			// we wait for 1 frame then fade in, and then it works.
			yield return null;

			foreach(var snapshot in snapshots)
			{
				snapshot.TransitionTo(transitionTime);
			}
		}
	}