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MKV2AC3 is a simple tool that converts MKV with DTS to MKV with AC3 Audio. Does batch conversion. It only accepts MKVs sources ( for now ) and transforms : DTS -> AC3 AAC -> AC3, AC3 -> AC3 ( normalized ).

File size:18.8MB
Old versions available
Version history available

15 votes

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  Latest version

1.03.04 (October 30, 2012)

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Download MKV2AC3 1.03.04 (direct link)

Download MKV2AC3 1.03.04 64-bit (direct link)

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Download MKV2AC3 old versions

Supported operating systems


MKV2AC3 screenshot
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Complete Version history / Release notes / Changelog

Version 1.03.04 - release date : 30/10/2012

changelog :

(FIX) Conversion from string "number / number" to type 'Integer' is not valid.
(FIX) EAC3TO Downmix failed with some sources
(FIX) AFTEN method failed to convert from DTS 2.0

MKV2AC3 - ver 1.03.03 - release date : 14/02/2010

(FIX) selecting subtitles failed with EAC3TO and AFTEN - no output was generated
(FIX) channels mapping wrong since ver 1.03.XX with AFTEN
(NEW) external subtitles support (*)

(*) just rename the SRT file with the same name as the MKV ( movie ) file, and select in inputs

MKV2AC3 Update - version 1.03.02 - Release Date : 23/01/2011

(FIX) Forced Header Compression to None, for better compatibility with all devices ( thanks to Momir Milekic )

MKV2AC3 Update - version 1.03.01 - Build 14/01/2011

changelog :

(FIX) DTS-HD Master Audio problems - distorted sound, or no output when using AFTEN method
(FIX) Normalization problems - no output - in some files using AFTEN method
(FIX) Normalization options not saved after exiting
(FIX) Changing methods after the first encoding is finished no output was produced, a restart was needed
(NEW) EAC3TO speed increase, bypass of useless steps
(NEW) EAC3TO normalization enabled
(NEW) Spanish language support

MKV2AC3 Update 11/01/2011

(FIX) DTS-HD Master Audio failed to convert
(FIX) Working Folder was not saved
- Slovak language added
- Italian Language added
- French Language added

update 12/03/2010

changelog :

- selectable subtitles
- polish language support
- multiple files can be selected in Input Dialog Box ( or you can do it by drag&drop )

version 1.02.01

changelog :

- Forced AC3 stream to be the default track, the option to keep all original streams was causing problems in all TVs and media players

- (fix) if you added 2 or more files, and then make Delete and Start failed

- Added text ( subtitles ) information

MKV2AC3 version 1.02.00 - final version

Final Version - 08/03/2010

complete changelog :

- multi-language support ( * )
- saves all your settings
- timecodes was added in remux in order to avoid audio out-of-sync
- better support for long path names with special characters and whitespaces
- some other improvements
- mkvtoolnix was updated
- drag & drop support
- drag & drop multiple files ( see images above )
- some other bugs fixed
- fixed bugs with multitracks

(*)Only English, Dutch, German and Portuguese. If you want to contribute then translate the file English.ini ( located in Lang folder ) into your native language and send me that file.

new version 1.01.02 - 16/02/2010

- better audio multitrack support
- keeps temporaries

new version, 1.01.01 Beta

what's new :

- better log messages
- supports eac3to
- speed improvements
- small bugs fixed

Here is a new version, 1.01.00 Beta

what's new :

- better log messages ( your request )
- supports eac3to
- speed improvements
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Sections/Browse similar tools

Alternative to MKV2AC3

PopCorn MKV AudioConverter

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15 comments, Showing 1 to 5 comments

Thanks to the developers for the tool. It does major its job perfectly. BTW, from the user point of view there is missing one critical feature for me. It's progress bar or time indicator. I'm using it hevily last days and missing of any information how long should I wait before the job finished making me crazy :) Anyway it is really nice tool.

Posted December 13, 2012 by Mikhus. Tool version 1.03.04 using OS Windows 7 64-bit
Ease of use 9 of 10 Functionality 7 of 10 Value for money 9 of 10 Overall score 8 of 10

yes, I don't know how, but I've missed 64bit version link here - thanks for pointing that!

of course it works now @Win7 64 without a problem.

(only quirk is removing audio channel name - some players might have problem with that)

Posted May 01, 2012 by ndade7. Tool version 1,03,03 using OS Windows 7 64-bit
Ease of use 10 of 10 Functionality 8 of 10 Value for money 10 of 10 Overall score 9 of 10

Quick, simple and effective way to downmix all my DTS to AC3.
Those who say this tool doesn't work in Win7 64-bit are mistaken, because it works perfectly for me - it definitely works in Win7 64-bit.
Unfortunately, it seems like the web site for this tool has completely disappeared. Regardless, it still works fantastic.
My only complaints are the usability of the interface (not being able to save output directory options and not being able to set default option for normalizing). Those are minor complaints. The tool is a freeware gem.

Posted April 27, 2012 by cincyreds. Tool version 1.03.03 using OS Windows 7 64-bit
Ease of use 7 of 10 Functionality 10 of 10 Value for money 10 of 10 Overall score 9 of 10

ndade7: This program has worked perfectly for me for a long time BUT I have not tried it in Win7 or a 64 bit system..There is a 64 bit program download in here in case you missed it.I have emailed the author a few times in the past and he was very helpful and got back to me very quickly here is his email if you want to write him >>

Posted March 19, 2012 by RappinRod. Tool version 1.03.03 using OS WinXP
Ease of use 10 of 10 Functionality 10 of 10 Value for money 10 of 10 Overall score 10 of 10

Great tool but big drawback - doesn't work in Win7 64bit
(no matter what compatibility setting)

After adding MKV - error "an attempt was made to load a program with an incorrect format
Exception from HRESULT:0x8007000B)"

pity as it replaces a lot of demuxing/converting/muxing jobs

Posted March 18, 2012 by ndade7. Tool version 1.03.03 using OS Windows 7 64-bit
Ease of use 10 of 10 Functionality 10 of 10 Value for money 10 of 10 Overall score 10 of 10

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