Convert MXF to captions

Sonix transcribes your MXF file and creates closed captions that make your content accessible to everyone.

ADA compliant
5-min turnaround
Accessible
Audio
Video
DOCX
SRT/VTT
PDF
53+ Languages
About This Format

Understanding MXF files

What is a MXF file?

Broadcast-grade video format for professional production

MXF files were designed by the Society of Motion Picture and Television Engineers. These MXF files, also known as Material Exchange Format files, are the digital equivalent of video tape. These files contain both audio and video data (and can contain other data in parallel bitstreams). You’ll usually encounter MXF files created by cameras, camcorders, video recorders, and on computers. Special codecs are typically required to decode MXF files, as they aren’t as common as other file formats.

Common Uses

  • Broadcast television
  • Professional video editing
  • Archive preservation

Audio Quality

Broadcast-quality professional format

Transcription Tips for MXF

  • High-quality audio for transcription
  • May require specialized codec support

Where MXF Files Come From

  • Professional cameras
  • Broadcast facilities
  • Video archives
10x
Faster than real-time
Get your MXF captions in minutes
99%
Accuracy rate
Industry-leading AI for MXF files
53+
Languages
Captions in any language
30+
Export formats
SRT, VTT, SCC, and more
How It Works

Create captions from MXF in 6 steps

Step 1

Create account

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

Step 2

Upload file

Upload your MXF 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 MXF with word-level timestamps.

Step 5

Edit captions

Fine-tune timing and formatting for accessibility.

Step 6

Export

Download closed captions in SRT, VTT, or SCC format.

Common Questions

Everything about MXF captions

Can you create closed captions from MXF files?

Yes! Sonix transcribes your MXF file with precise timestamps and creates closed captions in standard formats.

What's the difference between subtitles and closed captions?

Closed captions include non-speech elements like [music], [applause], and speaker identification. They're designed for deaf and hard-of-hearing viewers.

Are Sonix captions ADA compliant?

Yes! Sonix captions meet accessibility requirements when properly reviewed and edited. Our editor helps ensure timing and accuracy standards.

What caption formats are supported?

Export captions as SRT, VTT, SCC (for broadcast), and other formats. Each format has specific use cases.

Can I add sound descriptions?

Yes! Use our editor to add [music], [laughter], and other non-speech descriptions for full accessibility.

Do captions help with SEO?

Absolutely! Captions make your video content searchable and improve accessibility, both of which can boost SEO rankings.

Why Sonix

Accessible captions from MXF files

Accessibility First

Create captions that make your content accessible to deaf and hard-of-hearing viewers.

ADA Compliant

Meet accessibility requirements with properly formatted closed captions.

Sound Descriptions

Add non-speech elements like [music] and [applause] for full context.

SEO Benefits

Captions make video content searchable and improve discoverability.

Related

More ways to convert MXF files

Other MXF conversions

MXF to Text

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MXF to DOCX

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MXF to VTT

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MXF to Subtitles

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Add Subtitles to MXF

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Other file formats

MP4 to text
M2V to text
RM to text
WEBM to text
MK3D to text
MOV to text
MOOV to text
VOB to text
WMV to text
QT to text
See all supported file formats
Reviews

Trusted by accessibility teams

4.98 rating from 211 reviews

I was especially impressed with the quality when it comes to other accents as most other companies can only give a good machine transcript if it is a US accent. Sonix is amazing and I have nothing but good things to say. Thank you for providing this service!
PS
Preethi S.
Hyderabad, India
Wow. SPEED. Nice format, easy to read, liked the time stamps and speaker notification. Not a lot of formatting I had to strip before using. Simple.
BB
Becky B.
Washington DC, USA
I love how accurate the software is! The way you can play audio as you go through the text or click on any part of the text to hear the audio is amazing.
BI
Bruce I.
San Diego, CA USA
In one word? FAN-TAS-TIC!! The possibility to split the transcript to subtitles AND split them! THAT IS FANTASTIC!!
PK
Paul K.
Amsterfoot, Netherlands
Your product is amazing, I love so many features including the video capture on the side, ability to change the transcript as you go, highlighting, downloading audio files... SEARC...
VN
Vera N.
Brooklyn, NY USA
I am impressed by the almost perfect accuracy of the conversion and the speed by which the transcription was completed. Your web display is also impressive with clear and easy-to-u...
SS
Saiful S.
Bandar Seri Begawan, Brunei
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
I LOVE Sonix.
GN
Guillaume N.
Paris, France
Read more testimonials
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Create MXF captions now

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