Logicnord

Accessibility Technology Case Study: Audio Description Platform for Visually Impaired Audiences

Project Overview

This project focuses on improving media accessibility for visually impaired audiences by delivering synchronized audio descriptions for films.

The platform uses acoustic fingerprint technology to detect the exact moment of film playback and automatically synchronize audio descriptions delivered through a mobile application.

Logicnord developed the mobile applications and custom software systems powering the platform, enabling visually impaired users to watch films in cinemas or at home with real-time narration describing visual elements.

The project was funded by European Union innovation programs supporting accessibility technologies.

Audio description platform

About the Project

Films contain many visual elements that cannot be perceived by visually impaired audiences.

Audio description technology helps bridge this gap by providing narrated explanations of scenes, actions and characters.

The platform allows users to listen to synchronized audio descriptions through headphones while watching a film.

Using acoustic fingerprint recognition, the application automatically detects where the film currently is and plays the correct narration track.

This allows the system to work both in cinemas and when watching films at home.

Mobile Application

The accessibility platform is delivered through a mobile application that allows users to easily access audio descriptions for supported films.

The application detects the film playback position and automatically synchronizes the correct audio description track.

GV Filmai app icon

GV Filmai

Platform: iOS, Android

Our Approach

Logicnord developed the mobile applications and supporting software systems enabling real-time synchronization between the film and the audio description.

The platform uses acoustic fingerprint technology to analyze the audio signal of the film and detect its playback position.

Once the correct moment is identified, the application automatically plays the corresponding audio description.

This allows visually impaired users to receive narration without needing to manually synchronize the film.

Relevant services include:

The Challenge

  • Detecting film playback using acoustic fingerprint recognition
  • Synchronizing audio description tracks with film scenes
  • Ensuring reliable performance in cinemas and home environments
  • Minimizing delays between film playback and narration
  • Designing an interface accessible for visually impaired users

Technology & Architecture

  • Mobile applications for iOS and Android
  • Acoustic fingerprint recognition technology
  • Audio synchronization algorithms
  • Backend services for audio description management

Key Platform Features

  • Synchronized audio descriptions for films
  • Automatic film recognition using acoustic fingerprinting
  • Compatibility with cinema screenings and home viewing
  • Headphone-based narration playback
  • Accessible mobile application interface

What This Project Demonstrates About Accessibility Technology

  • Accessibility-focused product design
  • Real-time media synchronization
  • Acoustic fingerprint recognition technology
  • Mobile platforms for assistive technology

Results

The platform enables visually impaired audiences to experience films with synchronized audio descriptions.

By automatically detecting film playback, the system delivers accurate narration describing visual elements of the scene.

The project demonstrates how mobile technology can improve accessibility both in cinemas and home media environments.

Frequently Asked Questions

What is audio description technology?

Audio description provides narrated explanations of visual elements in films or videos, allowing visually impaired audiences to understand actions, scenes and character interactions.

What is acoustic fingerprint technology?

Acoustic fingerprint technology analyzes audio signals to recognize media content and detect the exact playback position of a film.

Who developed the platform?

The platform was developed by Logicnord, a mobile app development and custom software development company based in Lithuania.

About Logicnord

Logicnord is a mobile app development and custom software development company based in Lithuania.

The company develops mobile apps, digital platforms and custom software systems for startups and organizations worldwide.

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