After looking through james2marts' kext. I discovered something while reverse engineering it. The reason it might not work with Sigmatel 9200 codec is because your Device/Vendor ID might be incorrect.
First, download the kext first.
http://forum.insanelymac.com/index.php?act...st&id=31721CODE
sudo -s
password: <---- type your password when sudo asks for it
chown -R root:wheel SigmaTelAudioDriver.kext
chmod -R 755 SigmaTelAudioDriver.kext
Now, right click on the kext and go to /Contents/Info.plist
Where it says
CODE
<key>IOPCIMatch</key>
<string>0xCCCCCCCC</string>
Change the CCCCCCCC to your device id / vendor id.
Save.
Now open a new terminal window and type
CODE
tail -f /var/log/system.log
Now on the Terminal window where you did the chown-ing type
CODE
kextload SigmaTelAudioDriver.kext
This worked for me... If it did or didnt work or you, could you post your system.log file here? Thanks