Convert WEBA to captions

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

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ADA compliant
5-min turnaround
Accessible
WEBA conversion guide

Create captions from WEBA in 6 steps

  1. 1
    Create account~30 sec

    Sign up for a free Sonix trial with 30 free minutes.

  2. 2
    Upload file~1 min

    Upload your WEBA file from your computer or cloud storage.

    44+ formats supported
  3. 3
    Select language~10 sec

    Select the language spoken in your file.

    54+ languages
  4. 4
    Auto-transcribe~5 min

    Sonix AI transcribes your WEBA with word-level timestamps.

  5. 5
    Edit captions~2 min

    Fine-tune timing and formatting for accessibility.

  6. 6
    Export~10 sec

    Download your closed captions as SRT or VTT files.

    30+ export formats
The WEBA file format

Understanding WEBA files

What is a WEBA file?

WebM audio format for web applications

WEBA is an audio format that only contains audio extracted from WEBM video files. They are usually compressed using the OGG Vorbis compression codec for better transmission over the Internet. WEBM video files are the most common file format for HTML5 videos. Because WEBA files use the OGG Vorbis compression, they are supported in most media players.

Common uses for WEBA files

  • Web audio streaming
  • HTML5 audio
  • Browser-based audio
  • Web applications
  • Browser recordings

Who works with WEBA files?

Web developers, e-learning teams, and product teams that build HTML5 audio features work with WEBA files regularly, as do journalists and researchers who capture interviews through browser-based recording tools. It is also a common format for people who save just the audio track from WebM videos found online.

WEBA vs WEBM: which should you use?

WEBA and WebM use the same Matroska-based container; a WEBA file is essentially a WebM file that contains only an audio stream. WebM files pair VP8, VP9, or AV1 video with Vorbis or Opus audio, so they are much larger than an audio-only WEBA file of the same recording. Choose WEBA when only the soundtrack matters, such as an extracted lecture or interview, and WebM when you need to keep the video.

Convert WEBM to text
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Faster than real-time
Get your WEBA captions in minutes
99%
Accuracy rate
Industry-leading AI for WEBA files
53+
Languages
Captions in any language
30+
Export formats
SRT, VTT, and TTML
WEBA conversion FAQ

WEBA captions: frequently asked questions

Can you create closed captions from WEBA files?

Yes! Sonix transcribes your WEBA 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, or TTML. 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 won't my WEBA file open in some media players?

WEBA plays in most modern browsers, but some desktop players and mobile apps do not recognize the .weba extension even though they can handle WebM audio; renaming the file to .webm often fixes that. Players that genuinely lack WebM support need the file converted to MP3 or WAV instead.

Are WEBA and OGG files the same thing?

No. Both can carry Vorbis or Opus audio, but WEBA uses the WebM (Matroska-based) container while OGG uses the Ogg container, so some tools treat them differently even though the underlying audio codec may be identical.

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