Convert MPEG to captions

Create accessible closed captions from your MPEG videos. Add professional captions to DVD content, broadcast archives, and media libraries.

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

Understanding MPEG files

What is a MPEG file?

Standardized video format for broadcast and DVD

MPEG is an acronym for the ‘Moving Picture Experts Group,’ an organization that develops standards for encoding and decoding digital audio and video files. In conjunction with the International Electrotechnical Commission (IEC) and the International Organization for Standardization (ISO), MPEG works hard to ensure that compression standards are widely adopted and universally available to studios, producers, and consumers. Using MPEG compression, a multimedia file will be significantly smaller with little noticeable loss in quality. This makes transferring files over the Internet more efficient, which helps conserve Internet bandwidth. MPEG compression is so ubiquitous that the term ‘MPEG’ is commonly used to refer to a video file saved in an MPEG file format rather than the organization itself. These files usually have a ‘.mpg’ or ‘.mpeg’ file extension.

Common Uses

  • DVD video
  • Digital television
  • Broadcast media
  • Video archives

Audio Quality

Industry-standard compression with good quality

Transcription Tips for MPEG

  • MPEG-2 audio tracks transcribe well
  • Common format with good compatibility
  • Broadcast-quality audio

Where MPEG Files Come From

  • DVD rips
  • TV recordings
  • Broadcast captures
  • Video cameras
10x
Faster than real-time
Get your MPEG captions in minutes
99%
Accuracy rate
Industry-leading AI for MPEG files
53+
Languages
Captions in any language
30+
Export formats
SRT, VTT, and TTML
How It Works

Create captions from MPEG in 6 steps

Step 1

Create account

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

Step 2

Upload file

Upload your MPEG file from your computer or cloud storage.

Step 3

Select language

Choose from 54+ languages spoken in your file.

Step 4

Auto-transcribe

Sonix AI transcribes your MPEG with word-level timestamps.

Step 5

Edit captions

Fine-tune timing and formatting for accessibility.

Step 6

Export

Download closed captions in SRT and VTT formats.

Common Questions

Everything about MPEG captions

What's the difference between captions and subtitles for MPEG?

Captions include speaker identification and sound descriptions (music, applause, sound effects) for deaf and hard-of-hearing viewers. Subtitles assume the viewer can hear and focus on translating dialogue.

Are MPEG-to-caption conversions ADA compliant?

Sonix generates captions meeting ADA, Section 508, and FCC requirements when you include speaker labels and review for accuracy. Essential for accessible media archives.

Can I add sound descriptions to MPEG captions?

Yes! After transcription, add non-speech descriptions like [music playing], [audience laughter], or [doorbell rings] in Sonix's editor for fully accessible captions.

How do I create closed captions for archived MPEG broadcasts?

Upload MPEG, transcribe with Sonix, add speaker labels and sound descriptions, then export TTML captions for broadcast workflows.

What caption format works for MPEG in broadcast compliance?

TTML is the broadcast-oriented caption format available in Sonix. Export TTML, then review the captions against your delivery requirements.

How accurate are AI-generated captions from MPEG?

Sonix achieves 99%+ accuracy on clear MPEG audio. Broadcast and DVD content with professional audio produces excellent results. Review for proper names and technical terms.

Why Sonix

Accessible captions from MPEG 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.

Reviews

Trusted by accessibility teams

4.98 rating from 211 reviews

Sonix is a godsend service boosting my productivity and alleviating a major source of stress in my life.
OF
Olivier F.
Adachi, Japan
It was so easy and convenient to use. The transcripts require minimal editing and the delivery time is fantastic!
GS
Georgette S.
Toronto, Canada
This technology managed to shock me! It saved me so much time and effort!
KU
Kaan U.
Wassenaar, Netherlands
I thought it was absolutely amazing, flawless.
RM
Rutger M.
Amsterdam, Netherlands
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
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
Get Started

Create MPEG captions now

Try Sonix free with 30 minutes of transcription. No credit card required.

99% accuracy. Every word matters.

AI transcription and translation in 54+ languages.

30 minutes free
No credit card
Cancel anytime