Its in the camera app's settings.
Launch camera app, press the gear icon, press the gear icon again, scroll down and you'll find the shutter sound option.
Hi muzzy, I cannot find it. Can you please tell me where it is? After choosing two gear icons, I have something like: location information tag, confirmation of photo/video, volumn key, timer, white balance, exposion, guide line, flash, voice control, automatic creation of filename, reverse of left and right and then save (dimmed option), save location (dimmed option), reset, help.