The Stellar Suite provides an end-to-end solution for audio description creation. Script, record, QC and mix, all in one system. No need to convert files and work in different software products, improve productivity and reduce errors. Work with voice artists, select from over 4,000 synthetic voices or a combination of both.
Smart Audio Description for
a more accessible world
Watch our comprehensive video to see how Stellar streamlines audio description with powerful AI tools and seamless workflows.
Make your content accessible—faster, smarter, and more cost-effective than ever before.
Stellar’s features unveiled
Unleash the Power of AI and Professional Tools for all Audio Description workflows
Video & Audio Playback Setup
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Supports all video formats and aspect ratios
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Full video control with hotkeys or mouse
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Single-step playback with audio scrubbing
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Adjustable playback speed from 0.25x to 1000x
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Multi-track audio: up to 128 tracks (stereo/mono)
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Mute, level control, waveform view, and click-to-jump
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Review all elements in perfect sync with video
Script Creation & Editing
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Create from scratch or import scripts (spreadsheets supported)
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Split, merge, and add new titles with ease
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Set in/out times via hotkeys, drag, or mouse
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Preview script and video in real time
Smart Tools for Script Efficiency
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AI-based gap detection to identify natural insert points
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Accelerate scripting by reducing manual time checks
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Enhances workflow accuracy and speed
Human Voice Recording
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Record single or multiple titles or use loop recording
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Punch-in recording for precision timing
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Automatic splitting of long takes across titles
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Multiple takes: trim, slip, mute, duplicate, remove
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48kHz / 24-bit pro-grade audio support
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Review by title or segment
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AD and program audio mute control
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Skip-silence review mode
Synthetic Voice Integration
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4000+ voices in 80+ languages
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Mix synthetic voices or combine with human takes
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Create, save, and share favourites list for consistency
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Seamless integration with script playback
Spoken subtitles
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Instantly generate audio from subtitle text
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Use human or synthetic voices
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Auto dip original audio for clarity
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Export as a separate audio track
Audio Output & Delivery
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Export mono/stereo WAV files
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Dialog only, mixed with program audio, or embedded in MP4/MXF’
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Create web-compatible media with built-in AD
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Deliver as a complete job ZIP (script + audio)
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Export as Pro Tools (.ptx) session
Multi-Language Support
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Open and edit multiple language versions simultaneously
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Sync and conform all languages to match video edits
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Built-in retiming tools to simplify workflows
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Supports virtually all languages and scripts
Audio Description Review
Stellar’s tagging system allows reviewers to flag issues like timing mismatches, unclear phrasing, or content sensitivity.
Industry-standard security
The Stellar Suite is secured with industry standard TPN Gold Shield certification.
The Stellar Suite offers watermarking, two-factor authentication, Audit trail media access, full industry standard digital rights management (Widevine DRM) and encryption (MediaSeal) support to make sure your data is always secure.
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. Discover The Stellar Suite benefits:
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.
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 leading security
The Stellar Suite is secured with industry standard TPN Gold Shield certification. Your clients’ content is totally safe when you use The Stellar Suite. Track media access to provide a secure audit trail.
The Stellar Suite offers multiple media security methods: watermarking, two-factor authentication, full industry standard digital rights management (Widevine DRM) and encryption (MediaSeal) support to make sure your data is always secure.
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.
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.
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.
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.
Professional customer support
Yella Umbrella provide a range of support options covering software support, operations, IT and media services. Ask for more information
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. Discover The Stellar Suite benefits:
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.
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 leading security
The Stellar Suite is secured with industry standard TPN Gold Shield certification. Your clients’ content is totally safe when you use The Stellar Suite. Track media access to provide a secure audit trail.
The Stellar Suite offers multiple media security methods: watermarking, two-factor authentication, full industry standard digital rights management (Widevine DRM) and encryption (MediaSeal) support to make sure your data is always secure.
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.
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.
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.
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.
Professional customer support
Yella Umbrella provide a range of support options covering software support, operations, IT and media services. Ask for more information
Stellar Insights
Explore the Pulse of Media Production
Explore the Pulse of Media Production
Testimonials
Discover what our clients have to say
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'
Vice President of Technical Operations, Global Technology at BBC Studios
“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.”
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.
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.
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.
Freelance translator at Copy2U
Contact us
Office
Aarschotsestraat 87,
1800 Vilvoorde