Audio crackling after sound effect

Hi,
I added a shoot sound effect to my game, but unfortunately I always hear a crackling when the sound effect ends. The audio file it self is clear, so the crackling comes definitely from unity.
The code which is supposed to play the sound looks like this:

Code (CSharp):

1. public AudioClip clip;
2.  
3. private AudioSource source;
4.  
5. void Start(){
6. source = GetComponent<AudioSource>();
7. }
8. void Update(){
9. source.PlayOneShot(clip);
10. }

I also recorded it, make sure to turn the volume up:

 

you are playing the sound every frame, play it once at the needed place

Code (CSharp):

1. //if this script is on bullet, then
2. void Start(){
3. source = GetComponent<AudioSource>();
4. source.PlayOneShot(clip);
5. }

or at the place, where you are spawn the bullet
{Instantiate....
playoneshot}

 

I actually play the sound when I spawn the bullet, I just wanted to keep the code in my post as short as possible.
Here's the whole code:

Code (CSharp):

1. public class shoot : MonoBehaviour {
2.  
3.     public GameObject projectile;
4.     public GameObject gunPoint;
5.  
6.     public Animator anim;
7.  
8.     public AudioClip clip;
9.  
10.     public float speed;
11.     public float cooldown;
12.     public float bulletTime;
13.  
14.     private AudioSource source;
15.  
16.     private bool canShoot = true;
17.  
18.  
19.     // Use this for initialization
20.     void Start () {
21.         source = GetComponent<AudioSource>();
22.     }
23.    
24.     // Update is called once per frame
25.     void Update () {
26.        
27.         if(Input.GetKeyDown(KeyCode.Space) && canShoot)
28.         {
29.             GameObject go = (GameObject) Instantiate(projectile, (Vector2)gunPoint.transform.position, Quaternion.identity);
30.  
31.             go.GetComponent<Rigidbody2D>().transform.Translate(Vector3.forward);
32.             go.GetComponent<Rigidbody2D>().AddForce(transform.up * speed);
33.  
34.             anim.SetBool("shooting", true);
35.  
36.             source.PlayOneShot(clip);
37.  
38.             StartCoroutine(CanShoot());
39.             StartCoroutine(RemoveObject(go));
40.         }
41.     }
42.     IEnumerator CanShoot()
43.     {
44.         canShoot = false;
45.         yield return new WaitForSeconds(cooldown);
46.         anim.SetBool("shooting", false);
47.         canShoot = true;
48.     }
49.  
50.     IEnumerator RemoveObject(Object obj)
51.     {
52.         yield return new WaitForSeconds(bulletTime);
53.         Destroy(obj);
54.     }
55.  

 

can it be that audioclip isn't at zero volume at the end ? You can try to adjust audioclip with an extra audioeditor (like audacity

 

That did it... Thank you!!