How many audio channels does mobile have

you can play as much audio as you want just don't spam a particular audio over and over again also, for SFX use playclipatpoint for soundtracks,music tracks make a script to handle it even a simple script would work personally i use an IEnumarator to do it.

Here is a basic soundtrack player,

 using UnityEngine;
 using System.Collections;
 
 public class SoundTrackPlayer : $$anonymous$$onoBehaviour {
     public AudioClip[] Soundtrack$$anonymous$$usic;
     private AudioSource audioSource;
     void Awake(){
         this.gameObject.AddComponent <AudioSource>();
         audioSource = this.gameObject.GetComponent<AudioSource> ();
         this.gameObject.gameObject.name = "Sound$$anonymous$$anager";
         DontDestroyOnLoad (this);
         if (FindObjectsOfType (GetType ()).Length > 1) {
             Destroy(gameObject);
         }
     }
 
 
     void Start () {
         StartCoroutine (PlaySoundTracks ());
     }
     
     // Update is called once per frame
     void Update () {
     
     }
     IEnumerator PlaySoundTracks(){
         audioSource.clip = Soundtrack$$anonymous$$usic [Random.Range (0, Soundtrack$$anonymous$$usic.Length)];
         audioSource.Play ();
         yield return new WaitForSeconds (audioSource.clip.length);
         StartCoroutine (PlaySoundTracks ());
     }
 }
 

Thanks!!!!