Problem with audio after leaving pause menu

Read this first

ou can use AudioListener.pause to pause-resume audio. The answers and script below will work, but it will be overdoing it.

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Overdid Answers/Scripts

I wrote a wrapper to control the basic flow of a audio (Play, Pause, Resume, Stop)

AudioPlayer Wrappper (CS)

/*using UnityEngine; using System.Collections;

 [RequireComponent(typeof(AudioSource))]
 public class AudioPlayer : MonoBehaviour {
    
    private float time;
    private bool canPlay;
     
    //Testing code, should be deleted
    void Update() {
       if( Input.GetKeyDown(KeyCode.P) ) {
          Pause ();    
       }
         
       if( Input.GetKeyDown(KeyCode.O) ) {
          Resume ();    
       }
    }
     
    void Stop() {
       audio.Stop();
       time = 0;
       canPlay = false;
    }
     
    void Play() {
       audio.Play();
       time = 0;
       canPlay = true;
    }
         
    void Pause() {
      canPlay = audio.isPlaying;        
      time = audio.time;        
      audio.Stop();
    }   
     
    void Resume() {
       if( canPlay ) {
          audio.Play();
          audio.time = time;
       }
    }
 }*/

AudioPlayer.js // Overdid Script

    /*private var time : float;
    private var canPlay : boolean;
  
    function Stop() {
       audio.Stop();
       time = 0;
       canPlay = false;
    }
  
    function Play() {
       audio.Play();
       time = 0;
       canPlay = true;
    }
  
    function Pause() {
      canPlay = audio.isPlaying;     
      time = audio.time;     
      audio.Stop();
    }   
  
    function Resume() {
       if( canPlay ) {
          audio.Play();
          audio.time = time;
       }
    }*/

How to use

You will have to attach this script to all your audio source. I have tested this with 3 types of audio: a 3 minute song, a looping short-loop audio, and a one-shot death-cry.

Explanation

used AudioSource.time to make the audio player resume-able. I grab the audio.time right before it is Stop(), if I do it after, I will always get 0 for the audio.time. When I Resume(), I Play() the audio and set the audio.time to match the last time I Pause().

I use a boolean canPlay to determine whether the audio (this is meant for the one-shot audio) should be played when it is Resume(). I grab the audio.isPlaying when I Pause(). When the one-shot audio is not done playing yet, it will continue playing when I Resume().

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Pause.js

 #pragma strict
  
 var pause : boolean = false;
 var clickTexture : ClickTexture[];
 //var allAudioSources : AudioPlayer[];
  
 function Awake() 
 { 
     EnableClick( false );
  
     for( var i : int = 0; i < clickTexture.Length; ++i ) 
       clickTexture[i].pauseScript = this;
  
     //allAudioSources = FindObjectsOfType(AudioPlayer) as AudioPlayer[];
 }
  
  function PauseAllAudio() 
 {
     /*for(var audioS : AudioPlayer in allAudioSources) { 
         if( audioS != null ) {
             audioS.Pause(); 
         }
     }*/

     AudioListener.pause = true;
 }
  
 function ResumeAllAudio() 
 {
     /*for(var audioS : AudioPlayer in allAudioSources) { 
         if( audioS != null ) {
             audioS.Resume(); 
         }
     }*/
     AudioListener.pause = false;
 }
  
 function Update()
 {
      if(Input.GetKeyUp(KeyCode.Escape)) 
      {
         //Super lazy one-liner
         pause = !pause; 
  
         if(pause == true) 
         {
           Time.timeScale = 0.0;
           EnableClick( true );    
           PauseAllAudio();
         }
         else 
         {
           Time.timeScale = 1.0;
           EnableClick( false );    
           ResumeAllAudio();
         }
      } 
 }
  
 function RunOption( str : String ) {
    if( str == "quit" ) {
        Application.LoadLevel("AliensMainMenu");
    }
    else if( str == "resume" ) {
       pause = false;
             
       Time.timeScale = 1.0;
       EnableClick( false );    
       ResumeAllAudio();
    }
 }
  
 function EnableClick( b : boolean ) {
    for( var i : int = 0; i < clickTexture.Length; ++i ) 
       clickTexture[i].Show(b);
 }

ClickTexture.js

 #pragma strict
 
 var pauseScript : Pause;
 var optionString : String;
  
 function OnMouseEnter()
 {
    //change text color
    guiTexture.color = Color.red;
 }
  
 function OnMouseExit()
 {
  
    //change text color
    guiTexture.color = Color.white;
 }
  
 function OnMouseUp()
 {
    pauseScript.RunOption( optionString );
 }
 
 function Show( b : boolean ) {
    this.enabled = b;
     
    if( guiTexture ) {
       guiTexture.enabled = b;
    }
     
    if( guiText ) {
       guiText.enabled = b;
    }
 }

 ...
 private var allAudioSources : AudioPlayer[];
  
 function Awake() 
 {
     ...
  
     allAudioSources = FindObjectsOfType(AudioPlayer) as AudioPlayer[];
 }
  
 function PauseAllAudio() 
 {
    for(var audioS : AudioPlayer in allAudioSources ) 
    { 
       audioS.Pause();
    }
 }
  
 function ResumeAllAudio() 
 {
    for(var audioS : AudioPlayer in allAudioSources )
    { 
       audioS.Resume();
    }
 }
  
  
 function Update()
 {
    ...
 }
  
 function RunOption( str : String )
 {
    ...
 }
  
 function EnableClick( b : boolean )
 {
    ...
 }