...
public float soundVolume {              
   get {return AudioListener.volume;}  
   set {AudioListener.volume = value;} 
}

public bool soundMute {          
   get {return AudioListener.pause;}
   set {AudioListener.pause = value;}
}

public void Startup(NetworkService service) {
   Debug.Log("Uruchomienie menedżera dźwięku...");

   _network = service;

   soundVolume = 1f;                    
   
   status = ManagerStatus.Started;
}
...
