CaptionHub Voiceover

CaptionHub Voiceover brings your video content to life in any language. Using context-aware, human-like AI voice generation — with human-in-the-loop review — you can produce natural-sounding voiceovers at scale, without a recording studio. Faster localisation, consistent quality, and seamless integration into your existing captioning and translation workflow.

Realistic AI voices

Over 100 languages with editing capabilities for near instant high-quality voiceover

Editable AI voiceover

Generate and fine-tune realistic voiceovers in seconds — no studio time, no re-records.

Realistic voices in over 100 languages

Access a diverse library of lifelike AI voices that speak with every audience.

Instant updates, zero delay

Need to tweak a script or insert a pause? Edit your script and timing regenerate instantly — updates take seconds, not days.

Seamless subtitle-to-voice sync

Turn subtitles into natural-sounding voiceovers with perfect timing and customisable pronunciation.

Consistent quality at scale

Produce high-quality voiceovers across entire content libraries — with consistent delivery and tone.

Feature checklist

  • Natural-sounding voice synthesis
  • 120+ lifelike AI voices
  • Voice cloning support
  • Pronunciation dictionaries
  • Frame-accurate editing
  • Replace background audio
  • Audio sync for timing control
  • Multi-track publishing to platforms

Built for enterprise scale

Whether you're building your business, expanding internationally, or cutting costs—CaptionHub works for you.

Unparalleled scale

CaptionHub's infrastructure and application architecture powers the world's most demanding subtitling and workflow requirements, without missing a beat.

Quality and accuracy

We responsibly leverage AI to enhance caption accuracy, tailored specifically to your language domain, ensuring precision and relevance in communication.

Completely flexible

Customise CaptionHub to fit your business and give you the controls you need with policies, roles, and approval workflows.

Security by design

Your data security is our top priority. We have ISO 27001 certification and Cyber Essentials Plus, and we're GDPR compliant. So you can rest assured that your content and data is safe.

Intelligent, connected multimedia localisation.

CaptionHub is an AI-powered collaborative platform for multilingual subtitling and voiceover.