the stellar suite subtitling software

The Stellar Suite for
Dubbing and Voice-Over

Welcome to Stellar’s virtual dubbing studio.
Work with voice actors, AI voices, or both, and scale studio-quality dubbing with intelligent workflows and advanced respeeching, anywhere in the world.

Create, manage, and deliver dubbing projects with complete flexibility. Whether you rely on professional voice talent, high-quality AI voices, or a hybrid approach, Stellar gives you full control over your production workflow.

Record remotely, direct sessions in real time, or adapt performances with advanced respeeching. No travel, no studio constraints, just a fully connected, cloud-based environment that works the way you do.

From script to final delivery, streamline every step with built-in workflow automation and intuitive project management. Assign tasks, track progress, and keep your team aligned in one place.

Stellar combines a powerful dubbing tool with AI and human voice production, advanced respeeching, a fully remote studio environment, and integrated workflows, so you can deliver high-quality dubbing faster and more efficiently.

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Elevate your dubbing projects

Stellar's advanced dubbing features

Discover our flexible pricing model
Blueprint-Driven Workflow Automation & Project Orchestration

Structure and control every dubbing project with precision using Stellar’s Blueprint-driven workflows. Each project follows a predefined structure that defines stages, roles, QC logic, and automated handovers, from script preparation through to final delivery. 

  • Predefined workflow stages (Translation → QC → Recording → Recording QC → Export)
  • Conditional QC routing with automatic regression on failure
  • Role-based task assignment
  • Automated notifications and workflow triggers
  • Integrated delivery pipelines, including Pro Tools export
  • Real-time dashboards for full project visibility
  • Complete traceability and auditability across all actions
Remote & Hybrid Dubbing Studio with Live Collaboration

Run professional dubbing sessions anywhere—fully remote, in-studio, or hybrid—without compromising on quality or control. 

  • Secure online recording environment
  • Real-time synchronization of video, script, and audio across all users
  • Start, pause, resume, or restart sessions instantly
  • Integrated intercom with level and mute control
  • Record one or multiple voice talents, even across locations
  • Controller/client architecture with director or engineer master control
  • Shared scripts across sessions for consistency
    ➝ Reduced travel time and studio costs
Role-Based Workflows, Permissions & Dynamic Interfaces

Keep every role focused and efficient with a structured, intuitive working environment. 

  • Dynamic interface adapting to role and workflow stage
  • Dedicated environments for translators, reviewers, voice talent, directors, and engineers
  • User-based permissions ensuring controlled access
  • Reduced complexity and minimized user errors
    ➝ Streamlined onboarding and faster adoption
Studio-Grade Recording, Playback & Real-Time Monitoring

Deliver high-quality dubbing with advanced playback and recording tools designed for professional environments. 

  • Support for all video formats and aspect ratios
  • Frame-accurate playback with hotkeys or mouse control
  • Single-step playback and precise audio scrubbing
  • Speed control from 0.25x up to 1000%
  • Waveform display with click-to-jump navigation
  • Multi-track audio support (up to 8 tracks, stereo/mono combinations)
  • Full control over mute, levels, and audio scrubbing across tracks
  • Real-time monitoring by audio engineers
Script Creation, Adaptation & Localization Workflows

Create, manage, and adapt scripts directly within Stellar, fully synchronized with media. 

  • Import scripts from spreadsheets or create from scratch
  • Add, split, merge, and time dialogue segments
  • Assign roles and define in/out timings
  • Real-time preview against video and audio
  • Word-level timing adjustments via intuitive drag controls
  • Live updates visible across all users and Rythmoband display
  • AI-powered script generation from audio (speaker identification and dialogue extraction)
AI Voices, Voice Actors & Hybrid Production Models

Scale production with flexible voice workflows that combine human and synthetic capabilities. 

  • Record with professional voice actors
  • Access 4,000+ AI voices across 80+ languages from best-of-breed AI voice libraries
  • Mix synthetic and human takes within a single project
  • Create and reuse voice favorites for consistency
  • Combine AI voices with morphing for custom voice profiles
  • Blueprint routing between human, AI, and hybrid production models
Lip-Sync, Respeeching & Voice Transformation

Ensure natural, synchronized performances with advanced voice processing tools. 

  • Precise lip-sync alignment with video
  • Respeeching to modify recordings without full re-recording
  • Voice morphing for pitch, timbre, and character variation
    ➝ Efficient adaptation across languages and markets
Multi-User Collaboration Across Distributed Teams

Enable seamless collaboration across global teams with synchronized workflows. 

  • Real-time multi-user collaboration
  • Instant script updates across all users
  • Synchronized video and script playback across devices
  • Remote control of voice talent audio levels
  • Role-based muting and program track control
  • Intercom auto-mutes during recording for clean sessions
Review, QC Automation & Conditional Workflow Routing

Maintain consistent quality with integrated review and QC processes. 

  • Tagging tools to flag issues (lip-sync, pronunciation, missing lines, content concerns)
  • Structured review workflows embedded in production
  • Automated QC routing and regression to previous stages
    ➝ Faster review cycles and improved consistency
    ➝ Broadcast-ready output across all languages
Multi-Language Support, File Integration & Versioning

Manage multilingual dubbing projects efficiently at scale. 

  • Open and manage multiple languages simultaneously
  • Compare and conform timings across languages
  • Support for all world languages and scripts
  • Built-in retiming tools for efficient versioning
  • Seamless integration with localization and post-production pipelines
Output, Delivery & Studio Integration (Pro Tools Ready)

Deliver content in formats tailored to your workflow. 

  • Export mono or stereo WAV files
  • Dialogue-only or mixed with program audio
  • Export to MP4 for web-ready delivery
  • Package projects as zipped Audio Jobs (script + audio)
  • Direct export to Pro Tools (.ptx) for studio finishing
Traceability, Auditability & Enterprise-Grade Security

Protect your content with enterprise-level security and full operational transparency. 

  • TPN Gold Shield certification
  • Watermarking and two-factor authentication
  • Audit trail for media access and user actions
  • Full DRM support (Widevine)
  • Encryption with MediaSeal
    ➝ Secure content handling across the entire workflow

Dubbing and voice-over, reimagined.

Watch our comprehensive video to see how Stellar can transform your dubbing projects. Our virtual dubbing studio, complete with remote workflows and lip-syncing technology, along with professional voice-over tools featuring synthetic voices, elevates your projects to the next level.

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Unleash Creative Potential, Minimize Operational Hassle

Revolutionizing Creative Workflows with Stellar

Empower your dubbing and voice-over teams with Stellar tools—designed for the future of localization.
Smarter workflows. Studio quality. Anywhere.

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.

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 within one system. With integrated dashboards and analytics, you gain real-time visibility into progress, monitor work in progress, identify bottlenecks, and track performance against deadlines and KPIs.

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.

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.

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

The Yella Team provides a range of support options covering software support, operations, IT and media services. Ask for more information!

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.

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.

Stellar Insights

Explore the Pulse of Media Production

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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

Contact us

Email
sales@yellaumbrella.tv
Phone
Yella Umbrella Office
+44 1223911778
Office

Kasteletsingel-Zuid 2, 3580 Beringen