SignTalk Translator

Overview

SignTalk Translator is an enterprise-grade accessibility AI platform built for the Sensifai Marketplace. Combining multimodal computer vision with real-time speech synthesis and ASL linguistics, it provides bidirectional translation between sign language gestures, written transcripts, and spoken audio in under 3.0 seconds.

The Problem

Over 70 million deaf and hard-of-hearing individuals worldwide face daily communication barriers when accessing critical services. Human on-site sign interpreters cost upwards of $50–$100 per hour and require advance scheduling, leaving hospital triage desks, courtroom intake counters, and public transit kiosks without immediate accessibility. In emergency triage, delays in communication can lead to severe misdiagnoses and patient risk.

The Solution

SignTalk Translator solves accessibility bottlenecks with Sensifai AI Core. Using standard smartphone cameras or webcams, the system captures real-world sign gestures, tracks 21 spatial hand landmarks in 3D, and translates gestures into natural spoken audio via Web Speech TTS. In reverse mode, spoken words from staff are immediately transcribed into ASL gloss notation and visual motion guides.

Key Capabilities

• Computer Vision Sign Recognition: Pinpoints 21 hand landmarks, finger articulation, and grammatical facial expressions in real time.
• Bidirectional Translation: Converts sign gestures into natural spoken voice and transcribed speech into ASL gloss notation.
• Web Speech Text-to-Speech: Synthesizes spoken audio directly from translated sign phrases with adjustable speech speeds.
• High-Contrast Accessibility: WCAG 2.2 AAA high contrast mode, scalable typography, and emergency action item recommendations.
• Ephemeral Privacy: Zero biometric storage or facial database creation; video streams are analyzed strictly in volatile memory.
• Pay-As-You-Go Micro-Billing: €0.05 per translation request metered through Sensifai Gatekeeper and secure Logto OIDC.

How It Works

1. Select a verified sample preset (Medical Emergency, Gratitude, Directions, Emergency Alert) or start live camera capture.
2. Sensifai Vision Core analyzes hand landmarks and kinetic vectors in under 3.0 seconds.
3. Hear natural speech output aloud, review ASL gloss notation, and follow recommended contextual actions.

Who It's For

Hospital emergency triage nurses, courtroom clerks, public transit customer service agents, social workers, and inclusive employers seeking immediate, reliable assistive communication.