What is mkv file format and how to convert mkv video to mp4/avi/vob/mov/wmv/mp3 file with iFun MKV Video Converter?

What is MKV?

First of all make it clear that MKV is not a compression format. MKV is an open 

free multimedia container format that can package a variety of different encoded 

videos, audios and subtitle streams with different languages into just one MKV 

file. This is also considered as the biggest and greatest advantage of MKV file 

format. Different from audio or video encoding format like MP3, Ogg or 

DivX & XviD, the purpose of MKV format is as a unified format to store videos, 

movies, TV programs and other multimedia content. MKV format defines 3 types of 

files with different extensions: .MKV is video file, and it may contain audios 

and subtitles as well; .MKA is audio-only file, and it may include multiple or 

different types of audios; .MKS is subtitle-only file.

iFun Video Converter – Free MKV video file Converter

iFun Video Converter is a free MKV converter that comes with user-friendly 

interface and easy-to-use features. It supports converting MKV to any other 

popular video and audio formats like MP4, FLV, 3GP, WMV, AVI, MOV, VOB, 3G2, 

MP3, AAC and etc. As the best MKV converter, iFun Video Converter ensures 

quick & easy MKV conversion and high video quality for your Apple, Android 

and media players.

How to Convert MKV to MP4

It is quite easy to convert MKV to MP4 format. You can use iFun Video Converter

as a MKV to MP4 converter, and convert MKV video files to MP4 format with few 

simple clicks. In the following, we will show you how to convert MKV files to

MP4 format using iFun Video Converter. 

Install and launch iFun Video Converter, click “Add Files” and select the MKV 

files you want to convert, or simply drag the files to iFun Video Converter. 

And then click “Custom” button to tune the setting. 


Select MP4 as the output format, meanwhile, you can also adjust settings of 

resolution, frame rate and bit rate. Click “OK” to save changes. Finally, 

click big “Convert” button and finish converting MKV files to MP4 format. 



By using this MKV converter, you can also convert MKV to AVI, convert MKV to VOB, 

convert MKV to WMV and other video formats. The only thing you need to do is choose 

your target format as the output format, and iFun Video Converter will complete the 

rest work for you. Moreover, iFun Video Converter can also work as a MKV to MP3 

converter to extract audio from MKV to MP3, AAC, OGG, WAV, WMA, M4A, AC3, FLAC and 

MKA audio formats. 

Converting mkv to avi

mkv to avi converter.png

Converting mkv to vob

mkv to vob converter.pngmkv to vob converter.png

Converting mkv to mov

mkv to mov converter.png

Converting mkv to wmv

mkv to wmv converter.png

Converting mkv to mp3

mkv to mp3 converter.png

MKV File No Sound Issue for downloading movie videos from iTunes store especially 

Many of you may confront with the issue that you play MKV video files on Apple, 

Android, TV or other devices or players, but there’s no sound. Why does MKV file 

have no sound? 

The most likely cause of MKV files no sound issue is that MKV video files come 

with DTS sound track, such as AC3. Since Dolby collects royalty fees, many free 

video players remove the support for playing AC3 audio track temporarily. As a

direct result of this, MKV video files play but no sound. In this situation, you 

can choose to use paid version of media players like AVPlayer, or convert MKV 

files to any other popular video formats.

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