Part 3. FAQs of MKV Merge
- Download mkvmerge from the home site and use: mkvmerge -chapters originalfilenamechapters.txt -o output-file.mkv input-file.mkv. Flathub and use: flatpak run -command=mkvmerge org.bunkus.mkvtoolnix-gui -chapters originalfilenamechapters.txt -o output-file.mkv input-file.mkv Development. Deno test to run tests.
- Boost: 1.75.0: Collection of portable C source libraries: flac: 1.3.3: Free lossless audio codec: fmt: 7.1.3: Open-source formatting library for C: gettext.
- This package was approved as a trusted package on 31 May 2020. MKVToolNix is a set of tools to create, alter, split, join and inspect Matroska files (MKV). With these tools one can get information about (mkvinfo) Matroska files, extract tracks/data from (mkvextract) Matroska files and create (mkvmerge) Matroska files from other.
1. Can I merge MKV files with HandBrake?
When it comes to converting and editing videos, many people may think of HandBrake. But unfortunately, it doesn’t support merging videos at present. So, the answer is no. You cannot use HandBrake to merge MKV files. If you want to merge media files, you can try the methods we have introduced - Aiseesoft Video Converter Ultimate and MKVToolNix.
2. What is mkvmerge?
It is part of the MKVToolNix package. Mkvmerge can help you merge different multimedia files and save them as one MKV file. But it is a command-line program, which can be hard for some users to operate. So, here comes mkvmerge GUI (also known as mmg), a simpler version of mkvmerge with an intuitive interface, which makes the combination much easier.
MKVtoolnix contains MKVExtract and mkvmerge. Demux MKV files with MKVextract. Remux back to MKV with mkvmerge. The GUI mkvtoolnix-gui.exe is provided in the installation folder. The MKVtoolnix installation process also provides links to other suggested GUI compatible with MKVextract.
3. Does MKVToolNix reduce quality?
No, MKVToolNix does not reduce the video quality of your files after multiplexing. If your video is in high resolution, you’d better use a professional HD video player to play the files. Otherwise, there may be quality loss during the playback.
Mkvmerge Installation
Conclusion
So far you have learned 2 ways to merge MKV files. Aiseesoft Video Converter Ultimate is easier to understand and provides many practical tools that you can use to refine your video. As for MKVToolNix, maybe you can follow the guide above to merge some of your files, but it will take much more time to master this program. And the documentation it offers is hard to understand.
If you find this post helpful, please share it with your friends. And you can leave a comment below if you have any questions or suggestions.
Introduction
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I streamed a few DJ sets over the last few weeks with a bunch of friends as part of ‘covidcore’, an online get-together while we’re all in isolation. It’s been a while since I’ve played any DJ sets but it was great fun and thankfully I didn’t make too many mistakes.
Anyway, It was my first streaming experience and I found it a breeze to set up thanks to Twitch and OBS. When reviewing my recordings I noticed that my microphone level was pretty low so I decided to bust out the audio track from the video and raise it. Also when uploading my video to Youtube I also got a copyright notice about one the clips in my video which was subsequently being blocked, so I decided to edit that out too.
Here is how you can do it.
Note: I’m on a mac so all of the instructions are for that, but apart from installation the rest should be platform agnostic.
Steps
- Install mkvtoolnix
- Extract audio and video tracks from mkv file
- Optionally convert audio track if editing needed
- Merge audio and video tracks back in to mkv file
Install mkvtoolnix
mkvtoolnix is a set of command line programs for finding out information and modifying mkv (“Matroska”) files. You can install it with a GUI but I didn’t bother.
Cache memory cleaner for iphone. That’s it, boom!
Extract audio and video tracks from mkv file
For this step we are going to run this command
In the above command we are using mkvextract, part of mkvtoolnix, to extract the video track which is encoded using the ‘h264’ codec and also the audio track which is encoded using the AAC codec.
In order to find out what your video and audio tracks were encoded with use the following tool
Might be good to reference the docs if you have trouble there.
Optionally convert audio track if editing needed
My audio editor couldn’t open the aac file I created so I converted it to FLAC format using ffmpeg, another command line program that is insanely useful for converting audio formats (amongst other things).
So to convert I ran
Now I can open my flac file and edit the parts I want, like amplifying my microphone in the recording.
Merge audio and video tracks back in to mkv file
Right, now you have completed your editing we can stitch them back together again using the mkvmerge command
You can see I just merged the flac formatted audio back in. I just tried it and it worked. I need to read up a bit more on file formats to be honest so if you need more info check the docs.
Hope that helps someone :)