About This File
This Kext works for me after Update to Lion 10.7.1.
I use Emachines E510 (its the same like Acer Aspire 5310), so it should work on other Aspires, too.
Microfon is working perfect.
This kext is better then Voodoo HDA, cause the Mic didnt work with Voodoo.
Let me know if it's working for your System.
Works only with Realtek ALC268 sound card.
Remove all other Audio kexts before install, repair permissions.
No need to edit DSDT, no hda enabler needed.
Update: Kext is working with Mountain Lion, too. Makes sure to enable 32bit mode in org.chameleon.boot.plist.
Install in S/L/E and remove the original AppleHDA.kext, important: Remove Voodoo HDA and hda enabler.