This is an unofficial OSX HDAudio area for people who need solutions for several HDA Codecs.
Since Taruga's wiki is offline I'll try to help out untill the Taruga is back again. Soon hopefully.
I really miss the big guy.
Patches, kexts or installers can be found at OSX86Tuga.
Here's a How to install the kexts (just download kext helper b7, drag and drop the kexts or, if you prefer to use the Terminal:)
1- Grab the kexts
2- Open your Extensions folder: /System/Library/Extensions/
3- On that folder, erase AppleAzalia.kext and AppleHDA.kext (if you have ALCinject.kext, erase it too)
4- Drag and drop the newly downloaded AppleHDA.kext and ALCinject.kext into the Extensions folder.
5- Close the Extensions folder and erase the file named Extensions.mkext, or whatever. You'll find it near the Extensions folder.
6- Open the Terminal - You'll find it on the Go menu on the top bar
7- Type: sudo -s [Enter]
8- Type your password [Enter]
9- Type: cd /System/Library/Extensions/ [Enter]
10- Type: chown -R root:wheel ALCinject.kext [Enter]
11- Type: chmod -R 755 ALCinject.kext [Enter]
12- Type: chown -R root:wheel AppleHDA.kext [Enter]
13- Type: chmod -R 755 AppleHDA.kext [Enter]
14- Type: rm -f /System/Library/Extensions.
15- Type: rm -Rf /System/Library/Extensions/
16- Type: diskutil repairPermissions / [Enter]
18- Probably you won't need steps 14 to 16, but do them anyway
19- When your computer reboots, you'll hear some cracking noises. It's OK, it means you now have sound.
I'm not Taruga, so don't beg me for sollutions to your sound problems. All I can do is send you Taruga's patcher, edited sound kexts or installers.