Utilities - AudioHelper Script

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

public class AudioHelper : MonoBehaviour
{
    // over loads
    public static void CreatePlayAudioObject(AudioClip aClip)
    {
        CreatePlayAudioObject(aClip, 1.0f);
    }
    public static void CreatePlayAudioObject(AudioClip aClip, float vol)
    {
        CreatePlayAudioObject(aClip, vol, "AudioPlayObject");
    }
    // creates a dynamic Audio object to position and play in the world
    public static void CreatePlayAudioObject(AudioClip aClip, float vol, string objName)
    {
        // instance a new gameobject
        GameObject apObject = new GameObject(objName);
        // position the object in the world
        apObject.transform.position = Vector3.zero;

        // add an AudioSource component
        apObject.AddComponent<AudioSource>();
        // return this script for use
        AudioSource apAudio = apObject.GetComponent<AudioSource>();
        // initialize some AudioSource fields
        apAudio.playOnAwake = false;
        apAudio.rolloffMode = AudioRolloffMode.Linear;

        apAudio.loop = false;
        apAudio.clip = aClip;
        apAudio.volume = vol;

        // play the clip
        apAudio.Play();
        // destroy this object after clip length
        Destroy(apObject, aClip.length);
    }

    // fade our AudioSource object based on speed (> 0 fades volume up, < 0 fades volume out, == 0 assumes the sound is playing and just destroys it)
    public static IEnumerator FadeAudioObject(GameObject aObject, float fadeSpeed)
    {
        Animation apAnim = aObject.GetComponent<Animation>();
        AudioSource aSource = aObject.GetComponent<AudioSource>();


        // we are not a fade audio object
        if (apAnim == null)
        {
            // we simply destroy the object and return
            if (fadeSpeed <= 0)
            {
                Destroy(aObject);
            }

            // we are a psitive playing sound, so just play it
            if (fadeSpeed > 0 && aSource != null)
            {
                aSource.Play();
            }

            yield return null;
        }

        // animation clip is default to fade out (1 to 0), these will look reveresed but they are correct
        if (fadeSpeed < 0)
        {
            apAnim[apAnim.clip.name].time = apAnim[apAnim.clip.name].length;
        }
        else
        {
            apAnim[apAnim.clip.name].time = 0;
        }

        // set our speed
        apAnim[apAnim.clip.name].speed = fadeSpeed;

        // play the audio
        if (aSource.isPlaying == false)
        {
            aSource.Play();
        }

        // play the fade
        apAnim.Play();

        // yield the length of the clip
        if (fadeSpeed < 0)
        {
            while (apAnim.isPlaying) { yield return new WaitForEndOfFrame(); }

            Destroy(aObject);
        }
    }

    // over loads
    public static GameObject CreateGetFadeAudioObject(AudioClip aClip)
    {
        return CreateGetFadeAudioObject(aClip, true);
    }
    public static GameObject CreateGetFadeAudioObject(AudioClip aClip, bool dLoop)
    {
        return CreateGetFadeAudioObject(aClip, dLoop, null);
    }
    public static GameObject CreateGetFadeAudioObject(AudioClip aClip, bool dLoop, AnimationClip fadeClip)
    {
        return CreateGetFadeAudioObject(aClip, dLoop, fadeClip, "ReturnedAudioPlayObject");
    }

    // creates/returns a dynamic Audio object to position and plays in the world with loop
    public static GameObject CreateGetFadeAudioObject(AudioClip aClip, bool dLoop, AnimationClip fadeClip, string objName)
    {
        // instance a new gameobject
        GameObject apObject = new GameObject(objName);
        // position the object in the world
        apObject.transform.position = Vector3.zero;
        // add our DontDestroyOnLoad
        DontDestroyOnLoad(apObject);
        // add an AudioSource component
        apObject.AddComponent<AudioSource>();
        // return this script for use
        AudioSource apAudio = apObject.GetComponent<AudioSource>();
        // initialize some AudioSource fields
        apAudio.playOnAwake = false;
        apAudio.rolloffMode = AudioRolloffMode.Linear;

        apAudio.loop = dLoop;
        apAudio.clip = aClip;
        apAudio.volume = 1.0f; // default

        if (fadeClip != null)
        {
            Animation apAnim = apObject.AddComponent<Animation>();
            apAnim.AddClip(fadeClip, fadeClip.name);
            apAnim.clip = fadeClip;
            apAnim.playAutomatically = false;
        }


        // return our AudioObject
        return apObject;
    }

    // Setting
    public static void SetAudioEnable(bool enable)
    {
        AudioListener.volume = enable ? 1.0f : 0;
    }
    public static void SetAudioSfxEnable(bool enable)
    {
        AudioListener.volume = enable ? 1.0f : 0;
    }

    public static List<float> audioVolumes;
    public static void EnableAllAudio()
    {
        int cnt = 0;

        foreach (var at in GameObject.FindObjectsOfType(typeof(AudioSource)) as AudioSource[])
        {
            at.volume = (audioVolumes.Count > 0) ? audioVolumes[cnt] : 1.0f;
            cnt++;
        }
    }

    public static void DisableAllAudio()
    {
        audioVolumes = new List<float>();

        foreach (var at in GameObject.FindObjectsOfType(typeof(AudioSource)) as AudioSource[])
        {
            audioVolumes.Add(at.volume);

            at.volume = 0.0f;
        }
    }

}