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About

Line 21 provides AI-powered live captions and subtitles, ensuring seamless accessibility for live events, streaming platforms, and digital content. Our hybrid approach combines AI automation with human expertise, delivering high-accuracy captions that adapt to industry-specific terminology, accents, and niche references. By leveraging our AI Proofreader, we enhance real-time captions, reducing errors and making live experiences more inclusive and engaging. Our solution is designed for event organizers, broadcasters, and language service providers who need scalable, cost-effective, and high-quality captions. Traditional human captioning is expensive and non-scalable, while ASR solutions often lack accuracy. Line 21 bridges this gap by offering real-time AI-enhanced captions that integrate seamlessly into event tech and streaming workflows.

About

Rev provides premium on-demand, manual and automated transcription, closed caption, and foreign subtitling services. With 170,000+ customers, Rev's clients span from global enterprises to freelance journalists. Rev processes more audio and video than any other provider and has the ability to scale to fit any customer's needs. Pricing is simple starting at just $0.25 per audio/video minute for automated speech-to-text services and $1.25/min for manual with 99% accuracy. Rev also offers Rev.ai which is a speech recognition engine that's available to companies that want it.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Users that need an AI-powered live captioning and subtitling tool

Audience

Businesses or individuals that need a transcription, automated transcription, closed captioning, or subtitles provider

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0.09/min
Free Version
Free Trial

Pricing

$1.25 per minute
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Line 21
Founded: 2023
United Kingdom
line-21.com

Company Information

Rev
Founded: 2010
United States
www.rev.com

Alternatives

Alternatives

AI-Media LEXI

AI-Media LEXI

AI-Media
CapMate

CapMate

Venera Technologies

Categories

Categories

Speech Recognition Features

Audio Capture
Automatic Form Fill
Automatic Transcription
Call Analysis
Concatenated Speech
Continuous Speech
Customizable Macros
Multi-Languages
Specialty Vocabularies
Speech-to-Text Analysis
Variable Frequency
Voice Recognition

Transcription Features

AI / Machine Learning
Annotations
Audio/Video File Upload
Automatic Transcription
Collaboration Tools
File Sharing
For Manual Transcription
Full Text Search
Multi-Language Support
Natural Language Processing (NLP)
Playback Controls
Speech Recognition
Subtitles
Text Editor
Timecoding

Integrations

YouTube
Zoom
Brightcove
Deepgram
Easyflow
Ensemble Distribution Solution
Facebook
Kaltura
Microsoft Teams
OpenAI
Panoply
Pipedream
Twitch
Videolinq
Vimeo
YuJa

Integrations

YouTube
Zoom
Brightcove
Deepgram
Easyflow
Ensemble Distribution Solution
Facebook
Kaltura
Microsoft Teams
OpenAI
Panoply
Pipedream
Twitch
Videolinq
Vimeo
YuJa
Claim Line 21 and update features and information
Claim Line 21 and update features and information
Claim Rev and update features and information
Claim Rev and update features and information