MKV to M4A: Extract Audio from MKV(Matroska Video) Video to M4A(MPEG-4 Audio) with River Past Audio Converter, MKV2M4A converter, conversion

What is MKV?

Matroska aims to become THE standard of multimedia container formats. It was derived from a project called MCF, but differentiates from it significantly because it is based on EBML (Extensible Binary Meta Language), a binary derivative of XML. EBML enables the Matroska Development Team to gain significant advantages in terms of future format extensibility, without breaking file support in old parsers.

It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. Matroska is similar in conception to other containers like AVI, MP4 or ASF, but is completely open source. Matroska file types are .MKV for video (and audio) and .MKA for audio-only files.

To convert MKV files to other video formats, please have CCCP installed.

What is M4A?

Because of its exceptional performance and quality, Advanced Audio Coding (AAC) is at the core of the MPEG-4, 3GPP and 3GPP2 specifications and is the audio codec of choice for Internet, wireless and digital broadcast arenas. AAC provides audio encoding that compresses much more efficiently than older formats, such as MP3, yet delivers quality rivaling that of uncompressed CD audio.

To encode MPEG-4 audio, you need to have River Past MPEG-4 Booster Pack in addition to your audio software.

Additional Requirements

To extract audio from MKV(Matroska Video) video to M4A(MPEG-4 Audio) with River Past Audio Converter, you must have River Past MPEG-4 Booster Pack installed.

Launch River Past Audio Converter

Once River Past Audio Converter is installed properly, launch Audio Converter.

Install Matroska Pack

To convert from MKV files, please install CCCP (Combined Community Codec Pack), which includes Matroska Splitter 1.1.2.

CCCP

Select Audio Lanuage

Matroska Pack 1.1.2 expose only one audio track and one subtitle track. You can change the preferred track language. Launch Haali Splitter configuration by selecting "(Windows)Start | Program Files | Combined Community Codec Pack | Filters | Haali Media Splitter Settings" menu.

Select the "Options" tab, then expand "Languages" node.

Change the "Audio language priorities" and "Subtitle language priorities". For example, use "eng" for English or "jap" for Japanese.

Add File

Click on the "Add File" button on the tool bar. The standard file open dialog appears. Select "MKV - Matroska" in its "Files of type" combo box.

Select the file you want to convert and click "Open". The file will be added to the conversion file list.

If you cannot add the file, please make sure CCCP is installed. You may also need other codecs depending on the video and audio compression used to encode the MKV file.

River Past Audio Converter

Select output format

Use the setting panel on the bottom of the window to control the output format. Click on the toggle to the left of the "Format" label to expand the panel. Select "M4A - MPEG-4 Audio" as the "Audio Type".

Troubleshoot

If you have MPEG-4 Booster Pack installed, but don't see M4A as an output option, you have a problem with QuickTime installation.

Please make sure you have the latest QuickTime installed. Occasionally, QuickTime may be corrupted due to conflict with some other software. In any case, reinstalling QuickTime should fix this problem.

You can change the sample rate, channel (stereo or mono) and bits/sample, and bitrate.

Note: To convert to MPEG-4 audio, you must have River Past MPEG-4 Booster Pack installed.