Multiple gapless sound loops from one AudioSource (C#)

Questions & Answers
1

I have seen many questions about using multiple AudioSources but in my case, I want to use just one AudioSource, and one script controlling it. I have assigned 3 sound loops and I want to loop them without gaps all at once from one AudioSource, as well as stop and play individual sound loop with different individual volumes. Here’s where I am right now:

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(AudioSource))]
public class Sound : MonoBehaviour {

	AudioSource audioSource;
	public AudioClip audioClip1;
	public AudioClip audioClip2;
	public AudioClip audioClip3;
	[Range (0, 1)] public float audioClipVolume1;
	[Range (0, 1)] public float audioClipVolume2;
	[Range (0, 1)] public float audioClipVolume3;

	void Start () {
		audioSource = GetComponent<AudioSource> ();
		audioSource.loop = true;
	}

	void Update () {
		//How do I loop all 3 audio clips without gaps?

		//Tried using PlayOneShot
		//Checking if it is playing and playing it again creates gaps

		//Also, if one sound loop is shorter than the other soundloops, will wait untill
		//other sound loops finished to start playing again...

		if (!audioSource.isPlaying) {
			audioSource.PlayOneShot (audioClip1, audioClipVolume1);
			audioSource.PlayOneShot (audioClip2, audioClipVolume2);
			audioSource.PlayOneShot (audioClip3, audioClipVolume3);
		}

		//Tried changing clip

		//AudioSource can load only one clip, but allows for gapless looping

		audioSource.clip = audioClip2;
		audioSource.volume = audioClipVolume2;
		if (!audioSource.isPlaying) {
			audioSource.Play ();
		}
	}
}
2

If you want seamless/gap free transitions, you should use 3 Audio Sources playing at the same time, with only one’s volume set to > 0. Then, you crossfade volumes using Lerp or something similar.

3

I took SuperStarPL’s advice and created an Audio Source for each sound.