the stellar suite subtitling software

Discover Stellar

The Stellar Suite is designed to empower target users such as language service providers, subtitling houses, freelancers, broadcasters and content owners by streamlining their workflows through cutting-edge technology. Experience enhanced productivity and creativity with tools built to meet the demands of modern media production.

Stellar's revolutionary toolkit

A Closer Look

Watch our comprehensive video demo to see how The Stellar Suite can transform your media management from inception to delivery. Discover the power of integrated workflows, real-time collaboration and Integrated AI.

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Stellar for every user

The Stellar Suite: The Ultimate Solution for Media Localization and accessibility

Welcome to The Stellar Suite, the premier software solution engineered for the complex needs of today’s language service providers, subtitling houses, freelancers, broadcasters and content owners. Harness the power to streamline workflows, enhance collaboration, and AI integration to produce content at scale. Whether you’re working independently or managing large-scale media projects, The Stellar Suite provides the tools you need to succeed.

The way to elevate your localization process

YOUR HUB FOR MEDIA LOCALIZATION

Introducing The Stellar Suite, a secure, intuitive, browser-based solution from Yella that streamlines subtitling, dubbing, audio description, and more.

Audio Description

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The Stellar Suite provides a complete solution for creating high-quality Audio Description, from script to final delivery. Use AI to generate descriptive cues, then script and record with your own voice, voice artists, or over 4,000 synthetic voices. Fine-tune narration with editing and playback controls, mix for any platform, and deliver in all AD formats with seamless ProTools integration.

Subtitles and captions

The Stellar Suite lets you create high-quality subtitles and captions across all formats, languages, and platforms. Start from scratch or import files with frame-accurate editing, precise timing, and styling for open, closed, Teletext, and DVB. AI tools handle transcription, translation drafts, and on-screen text detection, while built-in QC ensures accuracy. Manage multi-language projects, batch process, and export in all major formats.

Dubbing

The Stellar Suite offers a complete virtual dubbing studio to record, sync, and deliver multilingual voice-overs with professional precision. Work with voice artists or choose from 4,000+ synthetic voices, enhanced by voice morphing, emotion transfer, and dialog removal. With built-in audio-video sync, full format support, and Pro Tools integration, managing the entire dubbing process from script to final mix is seamless.

Voice-Overs

The Stellar Suite lets you create professional voice-overs with voice artists or synthetic voices. It offers dip controls, dialog removal for clean tracks, and over 4,000 synthetic voices, plus custom voice creation options.

Compliance and timed text

Ensure every asset meets regional standards and audience expectations with advanced compliance tagging and QC workflows. Stellar gives you the tools to flag and fix content that may violate regulatory, cultural, or audience-specific standards. Our combination of automated and manual review tools ensures every asset is suitable for its intended market. 

Automate

Stellar Automate transforms the way you work with cutting-edge automation and AI-driven tools designed for media localization. From subtitle generation to voice-over production, Stellar Automate takes care of the heavy lifting—so your team can focus on creativity.

Manage

Stellar Manage is a single web portal to manage all tasks, media, users, and metadata – anywhere at any time. Streamline your project management for all localization and accessibility workflows.

Convert

Stellar Convert is your go-to solution for fast, accurate, and intelligent conversion of subtitles, captions, scripts, and audio description files—across all languages, formats, and delivery platforms.

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Unleash Creative Potential, Minimize Operational Hassle

Revolutionizing Creative Workflows with Stellar

Stellar has a flexible design to address the different challenges faced by freelancers, language service providers, content owners and broadcasters.

Benefits for Language Service Providers

Integrated Management and Progress Overview

The Stellar Suite provides a single portal for managing and tracking all your projects. Manage tasks, media, users and project data in the one system. See the status of all work in progress and highlight bottlenecks and deadlines.

Browser-based and always up-to-date

Cloud access from any computer.
Stellar is a browser-based solution that needs no costly equipment and runs on Mac and PC.
Enjoy a seamless user experience that includes all enhancements, automatically.

Industry-standard security

The Stellar Suite is secured with industry standard certifications. Your content is totally safe when you use The Stellar Suite.

The Stellar Suite offers multiple media security options: watermarking, encryption, multi-factor authentication, full industry standard digital rights management (DRM) and MediaSeal support to make sure your data is always secure.

Track media access to provide a secure audit trail.

TPN Gold Shield certification.

Flexible pay-per-use model

Enjoy cost-effective usage model that aligns with your workload.
The Stellar Suite’s flexible pricing model ensures you only pay for the days you use the software. If you don’t use it, you don’t pay. No more financial headaches for freelancers with fluctuating projects and smaller businesses on tight budgets.
Add user at any time with no limitation. Scale up or down instantly with no cost, just pay for what you use per day.

Resource planning and cost tracking

The Stellar Suite provides an overview of workloads and resources so you can be sure deadlines will be met. See time spent and associated costs per project, user or client.

Convert file formats, all languages

The Stellar Suite supports all file formats, all languages and all writing systems including the new IMSC Rosetta subtitle file format created for the industry by Warner Brothers Discovery and Yella Umbrella.

Single integrated system

The Stellar Suite provides a single integrated system with all the tools you need for all deliverables. One system for subtitles, captions, transcripts, audio description, spoken subtitles, voice-over and lip-sync dubbing.

AI-assisted innovation to empower humans

The Stellar Suite integrates with the best available AI services for speech-to-text, machine translation, synthetic voices, voice morphing and dialogue removal. Let AI do the heavy lifting, so humans have space to be more creative and productive.

Integrated Rules Based QC tools

Centralized Style Profiles define all the client requirements for caption, subtitle, and AD deliverables. Rules based QC system simplifies complex subtitle file correction and editing with auto-correct options. Reduce rejects with up front checks.
Central storage of Style Profiles removes confusion and human errors.

Real-time collaboration

Enhance collaborative quality and improve communications.
Stellar ensures all users and freelancers can collaborate on projects in real time, regardless of their geographical location. Features include shared workspaces, live editing and instant feedback.
Track progress and outstanding errors in real-time.

Save time in collaborative projects by streamlining revisions and ensuring clear communications with clients, staff and freelancers.

Professional customer support

Yella Umbrella provide a range of support options covering software support, operations, IT and media services. Ask for more information

Benefits for freelancers

AI-assisted innovation to empower humans

Empower with AI. Integrate with the best available AI services for speech-to-text, machine translation, synthetic voices, voice morphing, dialogue removal and gap detection. Reduce the effort and cost of external language service providers.

Integrated Rules Based QC tools

Centralized Style Profiles define all the client requirements for caption, subtitle, and AD deliverables. Rules based QC system simplifies complex subtitle file correction and editing with auto-correct options. Reduce rejects with up front checks.
Central storage of Style Profiles removes confusion and human errors.

Convert file formats, all languages

The Stellar Suite supports all file formats, all languages and all writing systems including the new IMSC Rosetta subtitle file format created for the industry by Warner Brothers Discovery and Yella Umbrella.

Flexible pay-per-use model

Enjoy cost-effective usage model that aligns with your workload.
The Stellar Suite’s flexible pricing model ensures you only pay when you use the software. If you don’t use it, you don’t pay. No more financial headaches for freelancers with fluctuating projects and smaller businesses on tight budgets.
Add user at any time with no limitation. Scale up or down instantly with no cost, just pay for what you use per day.

Browser-based and always up-to-date

Cloud access from any computer.
Stellar is a browser-based solution that needs no costly equipment and runs on Mac and PC.
Enjoy a seamless user experience that includes all enhancements, automatically.

Industry standard security

The Stellar Suite is secured with industry standard certifications. Your content is totally safe when you use The Stellar Suite.

The Stellar Suite offers multiple media security options: watermarking, encryption, multi-factor authentication, full industry standard digital rights management (DRM) and MediaSeal support to make sure your data is always secure.

Track media access to provide a secure audit trail.

TPN Gold Shield certification.

Customer support from industry experts

Get the support you need, when you need it.
Yella Umbrella provide a range of support options covering software support, operations, IT and media services. Ask for more information.

Benefits for broadcasters

Integrated workflow solutions

Our toolkit integrates effortlessly with media asset management (MAM) and existing workflow systems to boost your operational efficiency and streamline your processes.

Industry-standard security

The Stellar Suite is secured with industry standard certifications. Your content is totally safe when you use The Stellar Suite.

The Stellar Suite offers multiple media security options: watermarking, encryption, multi-factor authentication, full industry standard digital rights management (DRM) and MediaSeal support to make sure your data is always secure.

Track media access to provide a secure audit trail.

TPN Gold Shield certification.

Convert file formats, all languages

The Stellar Suite supports all file formats, all languages and all writing systems including the new IMSC Rosetta subtitle file format created for the industry by Warner Brothers Discovery and Yella Umbrella.

Integrated Rules Based QC tools

Centralized Style Profiles define all the client requirements for caption, subtitle, and AD deliverables. Rules based QC system simplifies complex subtitle file correction and editing. Reduce rejects with up front checks.
Central storage of Style Profiles removes confusion and human errors.

Smart archive management

Efficiently preserve and organize your valuable subtitle and audio description archives with our streamlined solutions. Modernize legacy formats to enhance accessibility and ensure compliance while maximizing their long-term value.

Integrated Management and Progress Overview

The Stellar Suite provides a single portal for managing and tracking all your projects. Manage tasks, media, users and project data in the one system. See the status of all work in progress and highlight bottlenecks and deadlines.

Flexible pay-per-use model

Enjoy cost-effective usage model that aligns with your workload.
The Stellar Suite’s flexible pricing model ensures you only pay for the days you use the software. If you don’t use it, you don’t pay. No more financial headaches for freelancers with fluctuating projects and smaller businesses on tight budgets.
Add user at any time with no limitation. Scale up or down instantly with no cost, just pay for what you use per day.

Browser-based and always up-to-date

Cloud access from any computer.
Stellar is a browser-based solution that needs no costly equipment and runs on Mac and PC.
Enjoy a seamless user experience that includes all enhancements, automatically.

AI-assisted innovation to empower humans

Empower with AI. Integrate with the best available AI services for speech-to-text, machine translation, synthetic voices, voice morphing, dialogue removal and gap detection. Reduce the effort and cost of external language service providers.

Customer support from industry experts

Yella Umbrella provide a range of support options covering software support, operations, IT and media services. Ask for more information

Benefits for Content Owners

Industry-standard security

The Stellar Suite is secured with industry standard certifications. Your content is totally safe when you use The Stellar Suite.

The Stellar Suite offers multiple media security options: watermarking, encryption, multi-factor authentication, full industry standard digital rights management (DRM) and MediaSeal support to make sure your data is always secure.

Track media access to provide a secure audit trail.

TPN Gold Shield certification.

Convert file formats, all languages

The Stellar Suite supports all file formats, all languages and all writing systems including the new IMSC Rosetta subtitle file format created for the industry by Warner Brothers Discovery and Yella Umbrella.

Integrated Management and Progress Overview

The Stellar Suite provides a single portal for managing and tracking all your projects. Manage tasks, media, users and project data in the one system. See the status of all work in progress and highlight bottlenecks and deadlines.

Integrated Rules Based QC tools

Centralized Style Profiles define all the client requirements for caption, subtitle, and AD deliverables. Rules based QC system simplifies complex subtitle file correction and editing with auto-correct options. Reduce rejects with up front checks.
Central storage of Style Profiles removes confusion and human errors.

Flexible pay-per-use model

Enjoy cost-effective usage model that aligns with your workload.
The Stellar Suite’s flexible pricing model ensures you only pay for the days you use the software. If you don’t use it, you don’t pay. No more financial headaches for freelancers with fluctuating projects and smaller businesses on tight budgets.
Add user at any time with no limitation. Scale up or down instantly with no cost, just pay for what you use per day.

Customer support from industry experts

Yella Umbrella provide a range of support options covering software support, operations, IT and media services. Ask for more information

Browser based and always up-to-date

Cloud access from any computer.
Stellar is a browser-based solution that needs no costly equipment and runs on Mac and PC.
Enjoy a seamless user experience that includes all enhancements, automatically.

Resource planning and cost tracking

The Stellar Suite provides an overview of workloads and resources so you can be sure deadlines will be met. See time spent and associated costs per project, user or client.

AI-assisted innovation to empower humans

The Stellar Suite integrates with the best available AI services for speech-to-text, machine translation, synthetic voices, voice morphing and dialogue removal. Let AI do the heavy lifting, so humans have space to be more creative and productive.

Real-time collaboration

Enhance collaborative quality and improve communications.
Stellar ensures all users and freelancers can collaborate on projects in real time, regardless of their geographical location. Features include shared workspaces, live editing and instant feedback.
Track progress and outstanding errors in real-time.

Save time in collaborative projects by streamlining revisions and ensuring clear communications with clients, staff and freelancers.

Single integrated system

The Stellar Suite provides a single integrated system with all the tools you need for all deliverables. One system for subtitles, captions, transcripts, audio description, spoken subtitles, voice-over and lip-sync dubbing.
It simplifies your work by automating routine tasks and keeping everything centralized on a single platform.
Save valuable time and reduce manual errors through effortless project management with progress tracking and easy client communications.

Media localization for the future

Meet Yella Umbrella: Innovators in Media Localization

By combining the latest AI tools with a powerful automated workflow engine, Yella Umbrella helps you face the future with confidence. We believe you should be able to focus on the creative elements of media localization and let automation and AI take care of repetitive tasks.

Testimonials

Discover what our clients have to say

'We have worked with Yella Umbrella for several years on analysing and processing our extensive subtitle archive. As we move to a new streamlined system, we have integrated The Stellar Suite to support our growing content needs. We use Stellar to conform multiple languages in a single session, create subtitles, perform automated subtitle conversions, and retime existing subtitle files. These capabilities have allowed us to maintain high quality standards while improving efficiency. This balance between automation and editorial control is exactly what we need'

Adam Jakubowski

Vice President of Technical Operations, Global Technology at BBC Studios

stellar suite

“We wouldn’t have been able to complete this intricate AD project without the shared task capabilities in Stellar. It simplified version control, enabled real-time QC, and allowed feedback without endless file sharing. It also keeps assets secure since only the project is shared, not the high-res media files.”

Cara Edney

CEO, Hear Say AD

At Vertala (TVT Media), we use Yella Umbrella’s Stellar Suite to manage and streamline our subtitling workflows across a wide range of projects and clients. The platform supports efficient, accurate, and flexible subtitle creation, review, and delivery across our output, including multiple Asian languages. Stellar’s tools have helped us maintain high quality standards while scaling to meet demanding turnaround times. Throughout our collaboration, the Yella team has been consistently helpful and responsive, offering expert support and adapting quickly to our evolving needs.

Hayden Punter

CFO at Vertala (TVT Media)

At Broadcast Intelligence, we rely on Yella Umbrella’s Stellar Suite to handle both the creation of new subtitles and the conforming of existing subtitle files across diverse projects and clients. The platform allows us to deliver accurate, consistent subtitles efficiently, even under tight deadlines. Using Stellar has enabled us to uphold rigorous quality standards while managing increasing volumes of work. The Yella team has been an excellent partner throughout—knowledgeable, approachable, and quick to respond as our requirements evolve.

Jake Robbins

COO at Broadcast Intelligence

As a freelance translator, Stellar has revolutionized the way I work. Its intuitive design and powerful features have significantly reduced my project turnaround times.

Nathalie Delacroix

Freelance translator at Copy2U

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