Convert MK3D to subtitles

Sonix transcribes your MK3D file and creates timestamped subtitles in SRT, VTT, and other formats.

SRT & VTT
5-min turnaround
All platforms
Audio
Video
DOCX
SRT/VTT
PDF
53+ Languages
About This Format

Understanding MK3D files

What is a MK3D file?

Matroska 3D video container format

The Matroksta 3D (MK3D) file format is used for storing 3D content (video and audio) while using the standard MKV container. However, it also uses a StereoMode field for 3D video files which have a variety of configurations such as side by side (left eye is first) or top-bottom (right eye is first). The Matroska file format is seeking to be the future of 3D audio and video file formats. It was derived from a project called MCF, but MK3D files differentiate themselves 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 from old media parsers.

Common Uses

  • 3D video content
  • Stereoscopic video storage
  • Home theater 3D

Audio Quality

High-quality container supporting multiple audio tracks

Transcription Tips for MK3D

  • Audio transcribes normally regardless of 3D video
  • Same quality considerations as MKV files

Where MK3D Files Come From

  • 3D Blu-ray rips
  • 3D camera recordings
  • 3D content creation
10x
Faster than real-time
Get your MK3D subtitles in minutes
99%
Accuracy rate
Industry-leading AI for MK3D files
53+
Languages
Subtitles in any language
30+
Export formats
SRT, VTT, FCPXML, and more
How It Works

Create subtitles from MK3D in 6 steps

Step 1

Create account

Sign up for Sonix's free trial. Includes 30 minutes free.

Step 2

Upload file

Upload your MK3D file from your computer or cloud storage.

Step 3

Select language

Choose from 53+ languages spoken in your file.

Step 4

Auto-transcribe

Sonix AI transcribes your MK3D with word-level timestamps.

Step 5

Split subtitles

Customize line length, duration, and subtitle breaks.

Step 6

Export

Download subtitles as SRT, VTT, or other formats.

Common Questions

Everything about MK3D subtitles

Can you create subtitles from MK3D files?

Yes! Sonix transcribes your MK3D file with word-level timestamps and creates professional subtitles in SRT, VTT, and other formats.

What subtitle formats are supported?

Export subtitles as SRT (most universal), VTT (web video), FCPXML (Final Cut Pro), and many more formats.

Can I customize subtitle timing?

Yes! Adjust max characters per line, lines per caption, max duration, and manually fine-tune any timing.

How do I add subtitles to my video?

Upload the SRT/VTT file to YouTube, Vimeo, or import into your video editor. You can also burn subtitles directly into the video.

Can I translate subtitles?

Yes! Sonix can translate your subtitles into 54+ languages, making your content accessible globally.

Are the subtitles accurate?

Sonix achieves up to 99% accuracy. Use our editor to make any corrections before exporting.

Why Sonix

Professional subtitles from MK3D files

Multiple Formats

Export subtitles as SRT, VTT, FCPXML, and more for any platform.

Customizable

Control line length, duration, and style of your subtitles.

Translate

Create subtitles in 53+ languages from your original audio.

Burn-in Option

Permanently embed subtitles into your video with one click.

Related

More ways to convert MK3D files

Other MK3D conversions

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MK3D to Captions

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Other file formats

M2V to text
TS to text
AVI to text
WMV to text
VOB to text
MPEG to text
OGV to text
FLV to text
OGX to text
3GP to text
See all supported file formats
Reviews

Trusted by content creators

4.98 rating from 211 reviews

The app is accurate, quick in response, and detailed in delivery. I am impressed.
LA
Lawrence A.
Lagos, Nigeria
Sonix is by far the best transcription tool I have ever used.
MA
Mic A.
Ikeja, Nigeria
You guys were SO easy to use. Competitors made my life so complicated but you guys were a breeze to work with!
MG
Mariana G.
Mexico City, Mexico
I love the efficiency, accuracy, and simplicity of going through the transcript to edit and then save it into word. Seamless.
DL
Debbee L.
Seattle, WA, USA
I have been a dialogue system researcher for half a decade now. I had build my own app for doing the transcriptions. Sonix was clearly better than what I had. I made the switch!
RM
Ramesh M.
Portland, OR USA
The process was super easy. I liked that you can upload video file without stripping away the audio first to do it, this of course saves production time. Great job overall for sure!!!
AS
Aaron S.
San Francisco, CA USA
Your app is amazing. Seriously, I'm blown away by the technology. The speed, accuracy, and the fact that you can play the audio and that it highlights the transcript in sync.
MR
Matt R.
Seattle, Washington
It really accelerated my work and I was amazed by the accuracy, especially given that the video featured only non-native speakers.
MC
Martin C.
Nottingham, United Kingdom
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