Fix Subler Audio Converter something went wrong in Mavericks 10.9

The Issue

Subler is a free Mac OS X app to Mux video, audio, chapters, subtitles and closed captions tracks from mov, mp4 and mkv as well as to edit metadata and create tx3g subtitles tracks, compatible with all Apple’s devices (iPod, AppleTV, iPhone, QuickTime).

After updating to Mavericks (OS X 10.9), when trying to convert Audio AC3 to AAC, Subler just stopped working saying “Something went wrong with the audio converter”.

How to Fix

The similar issue that exists in Mountain Lion now continues to bring inconvenience to Mavericks users. The solution to solve “Subler Audio Converter can not be initialized under Mountain Lion” provided by TechiSky benefits lots of Mountain Lion users. The solution that works on Mountain lion can still work on Mavericks to solve “Something went wrong with the audio converter” under OS X 10.9 Mavericks, reported by TechiSky readers.

Both issues under Mountain Lion and Mavericks are related to a52codec, the ac3 core audio component that is bundled with Perian.

Step 1: Download and install the latest Perian

Step 2: Donwnload the a52codec.component

Step 3: Unzip A52Codec

Unzip it. It should replace the one in /Library/Audio/Plug-Ins/Components or ~/Library/Audio/Plug-Ins/Components (the Library folder in your Home folder).

Step 4: Select “multi-channel output” in Perian preferences.

If you want to play MKV AC3 in 5.1 surround sound on Mavericks, you will need to convert MKV to MP4 AC3 5.1 or MP4 AAC 5.1 by some professional tool.

Click to learn how to convert MKV to MP4 AC3 5.1 or MP4 AAC 5.1 on Mavericks

13 comments on “Fix Subler Audio Converter something went wrong in Mavericks 10.9

  1. RapCal says:

    ac2codec link –> 404

  2. Renek says:

    thanks, it worked

  3. Blake says:

    Cannot unzip this link…

    • admin says:

      Hi Blake. Right click the mouse, you will see “Show Package Contents” Option. Click on it and you will see a folder named “Contents”. Then open the folder to copy and paste to /Library/Audio/Plug-Ins/Components.

  4. buck says:

    Thanks that worked.

  5. Brad Tarver says:

    worked perfectly on Mavericks 10.9.2. Thank you so very much!

  6. John Lopez says:

    Thanks great help

  7. Olav says:


    Weee! Yes, This guide solved the problem!
    Thx for the easy guide and FIX.

  8. willie says:

    many thanks – and Subler is appreciated – i only wish Apple iTunes would support all video codecs

  9. pr0per says:

    Thank you so much for this thread. Everything working smooth now. Thumbs up!

  10. icelander says:

    Thanks! It works great.

  11. anon says:


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