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A52Codec is a CoreAudio component that can decode stereo and 5.1 surround sound from A52 and AC-3 audio. This type of audio is often found in DVD movies.

From the Developer:" I'm no longer maintaining this app as a separate download; Instead you need to download Perian to get the latest version."

What's New

Version 1.7.6:
  • Allow the setting of dynamic range. Can make soft sounds louder.
  • AC3 passthrough. This is a hidden pref since it requires special conditions. It is best set by the application after it has completed such setup.
  • Fixed bug with badly packetized data
  • Fixed a case where the audio was being clipped
  • Fixed an incorrect assumption about sample rates.
  • more...


  • Mac OS X 10.4 or later
  • QuickTime 7.0.1 or later

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Current Version (1.x)


Downloads 252,517
Version Downloads 238,543
License Free
Date 02 Jul 2007
Platform OS X / PPC 32 / Intel 32
Price Free
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