Create Spanish closed captions

Make your videos accessible with ADA-compliant Spanish closed captions. Sonix automatically generates accurate captions that meet Section 508 and WCAG 2.1 accessibility standards.

Free to start — no credit card required.See pricing

ADA compliant
508 compliant
WCAG 2.1 ready
Spanish transcription guide

Create Spanish closed captions in minutes

  1. 1
    Upload your video~1 min

    Upload your video file from your computer or cloud storage.

    50+ formats supported
  2. 2
    AI captioning~5 min

    Sonix AI generates Spanish closed captions with models trained for accessibility compliance.

    Word-level timestamps
  3. 3
    Review captions~2 min

    Review and correct your captions in the browser editor with synchronized video playback.

  4. 4
    Export and publish~10 sec

    Download your Spanish captions as SRT or VTT files, ready for YouTube, Vimeo, or your website.

    30+ export formats
The Spanish language

Understanding Spanish transcription

Who transcribes Spanish content?

Broadcast and digital newsrooms across Spain and Latin America, U.S. courts and law firms handling Spanish-language testimony, and market researchers running Spanish focus groups all transcribe Spanish audio regularly. Academic researchers, podcasters, and healthcare and government teams serving Spanish-speaking communities rely on it as well.

Spanish dialects and accents

Spanish spans two broad families: Peninsular Spanish (Spain) and Latin American Spanish, with notable regional varieties such as Mexican, Caribbean, Andean, and Rioplatense. The most audible differences for speech recognition are Spain's "th" sound for c/z (distinción), the softened or dropped syllable-final "s" in Caribbean speech, and the "sh"-like ll/y of Argentina and Uruguay.

Where Spanish is spoken

Spanish is spoken in Argentina, Bolivia, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Equatorial Guinea, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Spain, Uruguay, and Venezuela.

5 min
Average turnaround
1-hour video captioned in ~6 minutes
99%
Caption accuracy
Industry-leading Spanish recognition
SRT/VTT
Caption formats
Compatible with all major platforms
30+
Platforms supported
YouTube, Vimeo, Facebook, and more
Spanish transcription FAQ

Frequently asked questions about
Spanish closed captions

What's the difference between closed captions and subtitles?

Closed captions include all audio elements (dialogue, sound effects, music cues) for deaf and hard-of-hearing viewers. Subtitles typically only include dialogue and are meant for viewers who can hear but don't understand the spoken language. Sonix can create both.

Are Sonix captions ADA compliant?

Yes. Sonix generates captions that meet ADA (Americans with Disabilities Act), Section 508, and WCAG 2.1 accessibility requirements. Our captions include accurate timing, proper synchronization, and support for required caption formats.

Can I add sound effect descriptions to captions?

Yes! In the Sonix editor, you can add non-speech audio descriptions like [music playing], [applause], or [door closes]. These descriptions help deaf and hard-of-hearing viewers understand the full audio context.

How accurate are Spanish closed captions?

Sonix delivers 85-99% accuracy for Spanish captioning depending on audio quality. Clear audio with minimal background noise achieves the best results. You can review and edit captions in our browser-based editor.

What platforms support closed captions?

All major video platforms support closed captions including YouTube, Vimeo, Facebook, Twitter, LinkedIn, and Wistia. Sonix exports SRT and VTT formats compatible with all these platforms and more.

Can I burn captions into my video?

Yes! Sonix offers a burn-in feature that permanently embeds captions into your video file. This is useful for social media where closed captions may not display automatically. See our burn-in subtitles service for more details.

Does Spanish transcription handle Latin American accents?

Yes. Sonix transcribes Spanish audio from across Latin America — including Mexican, Caribbean, Andean, and Rioplatense speech — as well as Peninsular Spanish from Spain, and the in-browser editor lets you correct any regional wording afterward.

Can Sonix transcribe Castilian Spanish from Spain?

Yes. Spanish from Spain, including the Castilian distinción (the "th" sound for c and z), is supported under the same Spanish language option — upload your file, transcribe, then edit and export.

Can I turn a Spanish transcript into subtitles?

Yes. After transcribing and editing a Spanish file, you can export subtitle formats such as SRT and VTT with ñ and accented characters preserved.

Transcription software reviews

Trusted by professionals worldwide

4.98 rating from 211 reviews

99% accuracy. Every word matters.

AI transcription and translation in 54+ languages.

30 minutes free
No credit card
Cancel anytime