Convert RM to captions

Sonix transcribes your RM 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 RM files

What is a RM file?

RealMedia streaming format (legacy)

RM files are multimedia files made specifically for the audio/video playback and streaming program called RealPlayer. Mostly, files with the .rm file extension are used for streaming content over the Internet (video and internet radio). RM files were developed by RealNetworks as a multimedia container optimized for internet streaming. Most RM files are played with RealPlayer, but other media players such as VLC do have partial support for RM files.

Common Uses

  • Legacy streaming content
  • Internet radio archives

Audio Quality

Legacy format with variable quality

Transcription Tips for RM

  • Older format - quality may vary
  • Convert to modern format if possible

Where RM Files Come From

  • RealPlayer archives
  • Legacy streaming sites
10x
Faster than real-time
Get your RM captions in minutes
99%
Accuracy rate
Industry-leading AI for RM files
53+
Languages
Captions in any language
30+
Export formats
SRT, VTT, SCC, and more
How It Works

Create captions from RM in 6 steps

Step 1

Create account

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

Step 2

Upload file

Upload your RM 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 RM 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 RM captions

Can you create closed captions from RM files?

Yes! Sonix transcribes your RM 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 RM 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 RM files

Other RM conversions

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Other file formats

WMV to text
VOB to text
MOV to text
MPE to text
MPG to text
3GP to text
OGX to text
MXF to text
M4V to text
TS to text
See all supported file formats
Reviews

Trusted by accessibility teams

4.98 rating from 211 reviews

I’ve been using your transcription software for about a year now. I just wanted to let you guys know that I think it is incredible. I have tried many alternatives, and none of them have been able to match the accuracy of Sonix!
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Ahmad D.
New York, NY USA
Very accurate transcription, ease of use and customer service. Price was also very reasonable.
FK
Feisal K.
Seattle, WA, USA
Easy to use and saved me mega amounts of time!
LM
Lynn M.
Manchester, England, UK
The transcription was pretty darn good!
AD
Andy D.
Los Angeles, CA USA
Blown away by what it does! Accuracy, ease of use, affordability, simple straightforward interface with well thought out additional tools and functions. Superb!
TS
Trey S.
Houston, TX
I am thrilled with the level of accuracy and the easy if which I am able to listen to and adjust the transcript. It’s very user friendly.
JH
Jacqui H.
Brisbane, Australia
Truly amazing. Saved me hours of work. And about 95% accurate which is great for a South African accent recording.
RC
Ruan C.
Pretoria, South Africa
I love how quick, affordable and accurate it is, but what I like MOST is that the words are highlighted as the recording speaks them!
AT
Alex T.
Knoxville, Tennessee
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Create RM captions now

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