AppleHDA is the default kext for Audio. After 10.6.3, it only supports some Audio Codecs by default.
 Patching AppleHDA
Patching AppleHDA can be very difficult. It requires much understanding of HDA and editing three files:
- /System/Library/Extensions/AppleHDA.kext/Contents/MacOS/AppleHDA must be patched.
- Enabling your audio adapter with either a DSDT edit or an extension like HDAEnabler.kext
- Link list
- Complete Guide Step 1-4
- Step 1
- Step 2+Step 3
- Step 4
VoodooHDA support many different sound adapters. It's currently the best choice if you don't have native support of AppleHDA or patching AppleHDA doesn't work for you.
 Apple Azalia
The old AppleAzaliaAudio.kext still provides audio output up to OSX 10.6 (32-bit mode, boot flag: arch=i386) for several Codecs from Realtek, Sigmatel, Cmedia, Analog Devices or Conexant. Only Stereo output is supported. Volume is a bit louder than with AppleHDA or VoodooHDA.
This page was last modified on 13 April 2011, at 20:12.
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