Chosen Solution

music in ipod is ok but many of my game doesnt have any sound speaker is ok and fine only in game i dont have any sound /: try restart nothing changed and i dont want resetting because of jailbreak

A user with the same issue on another forum discovered that the iPhone’s ringer switch was affecting audio in games. Of course there is no physical ringer switch on the iPod Touch, but I was able to use Activator to set up an action to toggle the ringer, and it seems that the ringer setting had somehow been disabled. Performing the Activator action generated a notification “Ringer Enabled”, and the sound is now working in all apps and games.

Go to Settings and find game sounds… if that doesnt work you may need to replace it.