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, SCC, and more
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 53+ 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, VTT, or SCC format.

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 to SCC format for broadcast-compliant closed captions.

What caption format works for MPEG in broadcast compliance?

SCC (Scenarist Closed Caption) format meets FCC broadcast requirements. Export from Sonix in SCC format for compliant closed captioning.

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

Researched and did trials of at least 12 other services. Chose Sonix because of accuracy and simplicity.
WJ
Wendy J.
Shippensburg, PA USA
I had been using Dragon voice recognition software, but Sonix eliminates that step all together. I absolutely love Sonix.
JA
Judith A.
Ireland
I thought it was absolutely amazing, flawless.
RM
Rutger M.
Amsterdam, Netherlands
I have absolute admiration for the impressive transcription done to 3 short YouTube videos. It is truly amazing how accurately it recorded the correct words and so well paragraphed...
WN
Werner N.
Auckland, New Zealand
What a great transcript experience! I love the work they are doing at Sonix. Their webpage is really simple to use and yet you get everything you need... most of t...
JR
Jose Rodrigo O.
Mexico City, Mexico
I cannot believe how easy, quick, and accurate this is.
LS
Lynn S.
Troy, NC USA
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