Signapse

In recent years, artificial intelligence has begun to bridge communication gaps between hearing and Deaf communities through automated sign language translation. British startup Signapse has emerged at the forefront of this technological frontier, developing AI-driven solutions that generate photo-realistic digital signers capable of performing unconstrained British Sign Language (BSL) translations. By combining expertise in social work, AI research, and Deaf community engagement, the company has generated over 5,000 BSL train announcements daily across the UK and delivered 4,000 manual BSL translations for various clients, all while maintaining the cultural richness and technical accuracy that has earned them recognition from both academic institutions and industry leaders. This article explores the technological foundations, business model, and societal impact of Signapse's groundbreaking work in AI-driven sign language interpretation, highlighting how their innovative approach is transforming communication access for millions of Deaf individuals worldwide.

Company Overview

Signapse was founded in spring 2022 by Sally Chalk (CEO and Co-Founder), Ben Saunders (CTO and Co-Founder), and Richard Bowden (Chief Scientist and Co-Founder) during the UK's first lockdown. The team, which includes both Deaf and hearing members, brings expertise from social work, AI research, and Deaf community engagement. The company launched its platform after receiving support from the University of Surrey's Centre for Vision, Speech, and Signal Processing (CVSSP) and a $1.5 million grant from Google.org.

Company Leadership and Team

The entrepreneurial trio brings diverse professional backgrounds to the table. Sally Chalk, previously the founder of Clarion Interpreting Limited, brings extensive experience in delivering sign language services and a deep understanding of Deaf community needs. Her academic work in linguistics and cognitive psychology grounded her in the theoretical foundations of sign language and its importance as a native language.

Ben Saunders, inspired by his mother's work as a special needs teacher, developed an interest in AI that later converged with his passion for sign language technology. This personal and professional journey prepared him for the technical challenges of creating AI-driven sign language translation. Richard Bowden's PhD research on finger spelling recognition laid the technical foundation for what would become Signapse's core technology.

Platform Development and Technical Foundation

Signapse's technology represents a significant advance in AI-driven sign language translation. The company employs AI-driven video generation techniques that create photo-realistic digital signers capable of performing unconstrained BSL translations. This approach preserves the cultural richness and nuances of sign language, which the team prioritized over simpler graphical avatar solutions. The platform achieved a milestone by generating over 5,000 BSL train announcements daily across the UK and delivering 4,000 manual BSL translations for various clients.

Partnerships and Innovation

The team's work garnered recognition through several awards, including the University of Surrey Vice-Chancellor's Award for Innovator of the Year and the Surrey Business Awards Start-Up of the Year. Their most significant milestone came in May 2024 when they secured £2 million in seed funding from investors including Soulmates Ventures and Deeptech Seed Fund, with additional support from Innovate UK. This funding will fuel their expansion into global markets, particularly in video translation capabilities for BSL.

Social Impact and Future Directions

The company's technology addresses critical barriers to communication faced by the Deaf community. It serves nearly 7 million profoundly Deaf people worldwide, with nearly 80% relying on sign language as their primary communication mode. Signapse's platform offers three subscription plans to accommodate different needs, starting from a free tier with one-minute upload capabilities up to an enterprise plan with 250 minute translation capacity. The company plans to launch a National Data Feed for British Sign Language and expand its services to additional sign languages while maintaining its commitment to innovation and accessibility.

Core Products and Services

Signapse's technology suite, anchored by their core SignStudio platform, represents a comprehensive solution for integrating sign language translation into various contexts, particularly video content and web accessibility.

Video Translation: SignStudio's Core Functionality

The SignStudio platform enables the translation of any video content into British Sign Language (BSL) or American Sign Language (ASL), featuring several key capabilities:

• Professional translations by qualified sign language experts

• Customizable display options including signer size and background colors

• Organized video libraries with tagging and team-based restrictions

• Picture-in-picture setup for seamless integration into original content

The platform currently serves 87,000 BSL users in the UK, providing 4,000 manual BSL translations monthly and handling 5,000 BSL train announcements daily across the UK network.

Website Accessibility: Real-Time Sign Language Integration

Signapse offers a JavaScript plugin that translates website content into BSL or ASL in real-time, with features including:

• Instant text-to-sign language conversion

• Adjustable plugin size and flexible placement options

• Single-line code integration for straightforward deployment

This solution has received positive feedback from UK Sport, demonstrating its practical application and user-friendliness. The company's technology helps organizations reach the Deaf community while enhancing their accessibility and reputation.

Enterprise Solutions: Scalable Translation Services

For organizations requiring robust sign language translation capabilities, Signapse provides three subscription plans tailored to different needs:

• Starter Plan: £0/month (1-minute upload capacity)

• Pro Plan: £100/month (10-minute translation capacity)

• Team Plan: £300/month (100-minute capacity, 4 license inclusion)

Enterprise customers can access additional features including:

• Whitelabeling options

• Advanced integration capabilities (Google Drive and SharePoint)

• Document splitting and access to raw footage

All plans require a 12-month commitment, with flexible customization options available for larger clients.

Technical Approach and Capabilities

Signapse employs cutting-edge AI-driven video generation techniques to create photo-realistic digital signers that can perform unconstrained BSL translations. This approach stands in contrast to simpler graphical avatar solutions, instead prioritizing the preservation of the rich cultural nuances of sign language.

The technology's development builds on existing research collaborations, particularly with the University of Surrey's Centre for Vision, Speech, and Signal Processing (CVSSP). This academic partnership has been instrumental in facilitating the groundbreaking advancements, including unconstrained BSL translation capabilities and improvements in AI-generated sign language videos.

By focusing on photo-realistic digital signers rather than graphical avatars, Signapse addresses several critical technical challenges in accessible AI technology. This decision reflects the company's commitment to both Deaf community standards and technical efficacy, as noted in their academic and industry partnerships.

The platform's capabilities demonstrate its effectiveness in real-world applications. It currently handles over 5,000 BSL train announcements daily across the UK network, while also providing 4,000 manual BSL translations monthly through its various services. These achievements underscore the platform's reliability and practical application for Deaf community communication needs.

Impact and Future Directions

Signapse's technology addresses critical needs in public communications, particularly for rail networks. The company has partnered with Network Rail, South Western Railway, and Whoosh to implement mobile apps that provide real-time sign language translations of train announcements into British Sign Language (BSL) and American Sign Language (ASL). This initiative covers 2,400 train stations nationwide, including critical information such as departures, arrivals, delays, cancellations, and safety notifications.

The project represents a significant advancement in mobile accessibility, allowing deaf passengers to receive sign language translations on demand through their smartphones. This "interpreter in your pocket" approach builds on Signapse's existing capabilities and extends their impact to a broader audience. The technology was developed with support from SBRI (Small Business Research Initiative), the Department for Transport, and further refined through collaboration with Marcel Hirshman.

In addition to ongoing projects in the UK railway network, Signapse continues to expand its reach internationally. Following a successful deployment at Cincinnati/Northern Kentucky International (CVG) Airport in Ohio, USA, the company aims to establish a National Data Feed for BSL that will standardize sign language translations across larger network operations. These developments demonstrateSignapse's commitment to scaling its technology for broader implementation while maintaining the high standards of linguistic and cultural accuracy that have defined its approach to AI-driven sign language interpretation.

Business Model and Funding

Signapse offers subscription-based services through its platform, with three distinct plans to accommodate different needs:

The Starter Plan enables users to upload one-minute videos free of charge. This tier includes basic features such as single sign-on, multi-factor authentication, and limited background customization options. All plans include the Signapse watermark and basic integrations.

The Pro Plan builds on the Starter functionality by providing 10 minutes of translation at £100 per month. Users have access to enhanced customization options, including the ability to remove the watermark and upload subtitles. This tier also offers basic integration capabilities and HD video quality.

The Team Plan represents the highest tier of service, priced at £300 per month for four licenses. This plan provides 100 minutes of translation capacity and allows for additional minutes at a cost of £10.40 per minute. The Team Plan includes advanced features such as whitelabeling options and enterprise-level integration capabilities, including support for Google Drive and SharePoint.

The company's pricing model is designed for long-term commitments, with all plans requiring a 12-month subscription. To support smaller organizations, the free Starter Plan remains available, offering flexibility for businesses of all sizes to integrate sign language translation into their operations.