Intel High Definition Audio

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Introduction

Intel High Definition Audio (HD Audio, HDA, Azalia) is Intel's high-quality successor/alternative to the AC'97 codec.

Configuration

  1. Determine which codecs your cards have.
    It's not that unusual to have more than one sound card these days, since some graphics cards have an HDA audio chip for the HDMI output, so we grep for all codecs on all cards:
    grep Codec /proc/asound/card*/codec*
    You should see something like:
    /proc/asound/card0/codec#0:Codec: Analog Devices AD1986A
    /proc/asound/card1/codec#0:Codec: ATI R6xx HDMI
    In this case there are two different codecs, one on each card.
  2. Configure the kernel.
Linux Kernel Configuration: Sound card support
   Device Drivers  --->
   <*> Sound card support  --->
       <*>   Advanced Linux Sound Architecture  --->
             [*]   PCI sound devices  --->
                   <*>   Intel HD Audio  --->
                         >>> Choose your codecs in here <<<

And you're done!

External links

Wikipedia's article on Intel HDA