Generally, people get into the sound problem due to the several reasons.
* Check the driver settings.
* Reboot the laptop.
* Set your speakers as a default.
* check audio settings.
Now check the mute button and reboot the laptop. here, is the quick option to fix the problem. if you need to fix the problem you can simply visit : [http://www.askprob.com/forums/topic/how-do-i-fix-my-asus-laptop-sound-not-working/|fix asus laptop sound not working].