Speaknix

Revolutionizing Digital Accessibility with Neural AI Voice

Developing a seamless cross-platform solution (Web & Mobile) to convert text into natural-sounding speech, enhancing digital accessibility for global users.

Role

Lead Full Stack Developer

Timeline

6 Months

Team

4 Developers, 1 Designer, 1 PM

The Challenge

In an increasingly digital world, content accessibility remains a significant barrier. Over 2.2 billion people globally suffer from vision impairment, and millions more face literacy challenges. Traditional Text-to-Speech (TTS) solutions have historically sounded robotic and emotionless, failing to engage users. Furthermore, content creators faced high costs and long turnaround times for professional human voiceovers, limiting the volume of audio content available.

The Solution

Lyzerslab engineered Speaknix, a state-of-the-art AI voice synthesis platform. We leveraged advanced Deep Learning models (Tacotron 2 and WaveGlow) to produce human-like speech with variable intonation and emotion. The platform offers an intuitive dashboard for content creators to generate audio in real-time and an API for developers to integrate voice capabilities into their apps. We prioritized low-latency inference to ensure instant feedback and a smooth user experience.

Key Features

  • Neural Text-to-Speech Engine with 99% human likeness.
  • Support for 50+ languages and 200+ unique voice accents.
  • Real-time voice cloning capability for personalized branding.
  • SSML (Speech Synthesis Markup Language) support for fine-grained control.
  • Cross-platform availability (Web, iOS, Android).

Tech Stack

Next.jsPythonTensorFlowFastAPIAWS LambdaPostgreSQL

The Process

01

Discovery & Research

Analyzed existing TTS limitations and interviewed 50+ visually impaired users to understand pain points.

02

Model Training

Curated 500 hours of high-quality voice data to fine-tune Tacotron 2 and WaveGlow models for natural intonation.

03

Development

Built a scalable microservices architecture using FastAPI for inference and Next.js for the frontend dashboard.

04

Testing & Iteration

Conducted A/B testing with human listeners to optimize MOS (Mean Opinion Score) and reduce latency.

Key Results

  • Achieved a 98% Mean Opinion Score (MOS) for voice naturalness.
  • Reduced audio content production costs by 85% for enterprise clients.
  • Processed over 10 million characters of text in the first 6 months.
  • Empowered 500+ educational platforms to provide audio textbooks.

Target Audience

Content Creators, Educational Institutions, Accessibility-Focused Enterprises

Future Scope

We plan to introduce real-time voice cloning for personalized branding and expand language support to 100+ dialects by Q4 2024.