Audiomixerのスナップショットの入れ替え

MixerTest.cs

using UnityEngine;
using System.Collections;

public class MixerTest : MonoBehaviour {

	[SerializeField]
	UnityEngine.Audio.AudioMixer mix;

	void Start () 
	{
		var snapshot = mix.FindSnapshot("snapshot2");
		var baseSnapshot = mix.FindSnapshot("Snapshot1");
		mix.TransitionToSnapshots(
			new UnityEngine.Audio.AudioMixerSnapshot[]{baseSnapshot, snapshot},
			new float[]{0, 1}, 
			3);
	}

}