Update

Assets/Scripts/Player/Generic/Animator/vTriggerSoundByState.cs

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+using UnityEngine;
+using System.Collections.Generic;
+
+namespace Invector
+{
+    public class vTriggerSoundByState : StateMachineBehaviour
+    {
+        public GameObject audioSource;
+        public List<AudioClip> sounds;
+        public float triggerTime;
+        private vFisherYatesRandom _random;
+        private bool isTrigger;
+
+        // OnStateEnter is called when a transition starts and the state machine starts to evaluate this state
+        override public void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
+        {
+            isTrigger = false;
+        }
+
+        // OnStateUpdate is called on each Update frame between OnStateEnter and OnStateExit callbacks
+        override public void OnStateUpdate(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
+        {
+            if (stateInfo.normalizedTime % 1 >= triggerTime && !isTrigger)
+            {
+                TriggerSound(animator, stateInfo, layerIndex);
+            }
+            else if (stateInfo.normalizedTime % 1 < triggerTime && isTrigger) isTrigger = false;
+        }
+
+        void TriggerSound(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
+        {
+            if (_random == null)
+                _random = new vFisherYatesRandom();
+            isTrigger = true;
+            GameObject audioObject = null;
+            if (audioSource != null)
+                audioObject = Instantiate(audioSource.gameObject, animator.transform.position, Quaternion.identity) as GameObject;
+            else
+            {
+                audioObject = new GameObject("audioObject");
+                audioObject.transform.position = animator.transform.position;
+            }
+            if (audioObject != null)
+            {
+                var source = audioObject.gameObject.GetComponent<AudioSource>();
+                var clip = sounds[_random.Next(sounds.Count)];
+                source.PlayOneShot(clip);
+            }
+        }
+    }
+}