Convert MP2 to captions

Sonix transcribes your MP2 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 MP2 files

What is a MP2 file?

MPEG Layer 2 audio used in digital broadcasting

MP2 files were the predecessors to the MP3 file format. MP2 files are primarily used to store audio in a compressed format to reduce the file size. They are usually compressed with the MPEG Audio Layer-2 compression codec. While teh MP2 file format is still used for audio, the MP3 format has become much more common. However, you can still find MP2 files still used for digital radio and digital television broadcasts because the standard MPEG Audio Stream supports 32, 44.1, and 48 kHz sampling rates and bitrates from 32 to 320 kbps/sec.

Common Uses

  • Digital radio broadcasts
  • Digital television audio
  • Legacy audio files

Audio Quality

Good quality - still used in broadcasting

Transcription Tips for MP2

  • Works well for broadcast-quality content
  • Similar to MP3 for transcription purposes

Where MP2 Files Come From

  • Digital radio recordings
  • TV broadcast captures
  • Legacy audio archives
10x
Faster than real-time
Get your MP2 captions in minutes
99%
Accuracy rate
Industry-leading AI for MP2 files
53+
Languages
Captions in any language
30+
Export formats
SRT, VTT, SCC, and more
How It Works

Create captions from MP2 in 6 steps

Step 1

Create account

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

Step 2

Upload file

Upload your MP2 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 MP2 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 MP2 captions

Can you create closed captions from MP2 files?

Yes! Sonix transcribes your MP2 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 MP2 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 MP2 files

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Other file formats

AIF to text
GSM to text
WMA to text
AIFC to text
AIFF to text
MP3 to text
FLAC to text
MPGA to text
CAF to text
WEBA to text
See all supported file formats
Reviews

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I am very impressed with your program. The recording was not crystal clear and yet I received a perfect transcription...Wow! I would recommend this to anyone.
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Surrey, BC, Canada
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Lagos, Nigeria
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Paula G.
Sao de los Campos, Brazil
I was cleaning up the transcription of the recording of my Brazilian client. Sonix did a surprisingly good job. Sonix's accuracy in transcription is great.
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New York, NY USA
I’m blown away by how accurate it was.
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Nashville, TN, USA
I’m stunned how much easier it makes life. I worked on documentary films and it cost us a fortune to have the interviews transcribed. The idea that this exists is mind-boggling to me.
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New York, NY USA
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Rio de Janiero, Brazil
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San Juan de La Rambla, Spain
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