DYNAMIC SOUND

iam developing some Dynamic audio in game, i mean when you SHOT a gun the player will hear 3 different sounds, (Left, Center, Right)

the center sound is the main shooting sound, but the side sounds are ambient sounds... the thing is.. im recently learning JS and C# and i dont know how to do it but i know that it is possible... i think using RAYCAST... can i use it? to shot a line in left-right directions and that give me the distances, and with that information manipulate the volume of the side sounds?? this is my actual code:

 var FireShot = GameObject; 
 private var FireShotEnabled : boolean = false;
 var ShotFX = AudioClip;
 var ShotAmbientFX = AudioClip;
  
 function FireShot ()
 {
     if (Input.GetButtonDown("Fire1")) {
         FireShotEnabled = !FireShotEnabled;
         FireShot.enabled = LightEnabled;
         audio.PlayOneShot (ShotFX);
         audio.PlayOneShot (ShotAmbientFX);
     }
 }

the FireShot correspond to the Muzzleflash effect that iam using, and the other thing you can figured out...

like i said im starting to learn, maybe my code is crap, you let me know :)

greetings and THANK YOU!