3Play Media is a Boston-based video accessibility and localization platform used by 10,000+ brands to make video content compliant, searchable, and globally accessible. The platform combines AI-driven speech recognition with human expert review to produce captions, subtitles, dubbing, and audio description at scale. Core services include closed captioning and live captioning (marketed at 99%+ accuracy), subtitling with cultural-nuance-aware translation, premium AI/human dubbing for international audiences, and audio description for visually impaired viewers. 3Play also offers Pulse, an AI-powered auditing tool that scans video libraries to identify and help remediate accessibility compliance gaps (e.g. ADA, Section 508). The platform integrates with 40+ video, lecture-capture, and LMS systems, supports API-based and cloud-storage ingestion, offers custom glossaries and translation profiles, and provides predictive accuracy scoring on AI-generated output. Customers span media and entertainment, higher education, corporate training, sports broadcasting, and news, with named clients including NBC Sports, Salesforce, T-Mobile, and Yahoo.
Key Features
AI + Human Captioning — 99%+ accurate closed captioning combining AI speech recognition with human expert review.
Live Captioning — Real-time captioning for live video and broadcast content.
Subtitling & Translation — Subtitle translation with cultural-nuance-aware human review across multiple languages.
Dubbing — AI-assisted premium dubbing to localize video content for international audiences.
Audio Description — Multilingual audio description for visually impaired viewers.
Pulse Accessibility Auditing — AI-powered tool that scans video libraries to identify and help remediate accessibility compliance gaps.
40+ Platform Integrations — Integrates with video platforms, lecture-capture tools, and LMS systems including Zoom, YouTube, Vimeo, Kaltura, Brightcove, Panopto, Blackboard, and Canvas.
Flexible Ingestion — Upload content via API, cloud storage, or direct upload for processing.
Custom Glossaries & Translation Profiles — Configurable glossaries and translation profiles to keep terminology consistent across projects.
Predictive Accuracy Scoring — Scoring that predicts the accuracy of AI-generated captions/transcripts before human review.
Job Status Tracking — Dashboard for tracking the status of captioning, subtitling, dubbing, and audio description jobs.
API Access — Developer API for automating captioning, subtitling, and audio description workflows.
Pros & Cons
Pros
Combines AI speed with human review for high captioning accuracy
Broad library of 40+ integrations with video platforms, LMS, and lecture-capture tools
Covers the full video accessibility/localization stack: captions, subtitles, dubbing, and audio description in one platform
Pulse tool helps proactively find and remediate accessibility compliance gaps
Enterprise-grade compliance support (SOC 2, HIPAA, GDPR per pricing page)
Cons
No published flat-rate pricing — costs require a sales consultation or pricing calculator
No free trial mentioned, which may slow evaluation for smaller teams
Entry-level Pro plan is capped at 10 hours of video per year, with dubbing/subtitling reserved for Enterprise