Using Unity the VideoPlayer Component with URL has no auido

The video plays very well, but it does not have audio when it should play it too

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Video;


public class StreamVideo : MonoBehaviour {

    public RawImage image;
    public GameObject playIcon;


    private VideoPlayer videoPlayer;
    private VideoSource videoSource;

    private AudioSource audioSource;

    private bool isPaused = false;
    private bool firstRun = true;

    IEnumerator playVideo() {
        playIcon.SetActive(false);
        firstRun = false;
        //Add VideoPlayer to the GameObject
        videoPlayer = gameObject.AddComponent<VideoPlayer>();

        //Add AudioSource
        audioSource = gameObject.AddComponent<AudioSource>();

        //Disable Play on Awake for both Video and Audio
        videoPlayer.playOnAwake = false;
        audioSource.playOnAwake = false;
        audioSource.Pause();

        //We want to play from video clip not from url

        //videoPlayer.source = VideoSource.VideoClip;

        // Video clip from Url
        videoPlayer.source = VideoSource.Url;
        videoPlayer.url = "http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4";


        //Set Audio Output to AudioSource
        videoPlayer.audioOutputMode = VideoAudioOutputMode.AudioSource;

        //Assign the Audio from Video to AudioSource to be played
        videoPlayer.EnableAudioTrack(0, true);
        videoPlayer.SetTargetAudioSource(0, audioSource);

        //Set video To Play then prepare Audio to prevent Buffering
        videoPlayer.Prepare();

        //Wait until video is prepared
        while (!videoPlayer.isPrepared) {
            yield return null;
        }

        Debug.Log("Done Preparing Video");

        //Assign the Texture from Video to RawImage to be displayed
        image.texture = videoPlayer.texture;

        //Play Video
        videoPlayer.Play();

        //Play Sound
        audioSource.Play();

        Debug.Log("Playing Video");
        while (videoPlayer.isPlaying) {
            Debug.LogWarning("Video Time: " + Mathf.FloorToInt((float)videoPlayer.time));
            yield return null;
        }

        Debug.Log("Done Playing Video");
    }

    public void PlayPause() {
        if(!firstRun && !isPaused) {
            videoPlayer.Pause();
            audioSource.Pause();
            playIcon.SetActive(true);
            isPaused = true;
        } else if (!firstRun && isPaused) {
            videoPlayer.Play();
            audioSource.Play();
            playIcon.SetActive(false);
            isPaused = false;
        } else {
            StartCoroutine(playVideo());
        }
    }
}