VOLO– a real-time translation system designed for offline conferences, forums, and live events. Event organizers purchase the system and deploy it at physical venues to provide instant translation for international audiences.
We built the full system, covering attendee access, speaker tools, and event management.
Features
QR Code Instant Access — Scan, Choose Language, Get AI Subtitles or Voiceover in Real Time
The key product logic in VOLO is removing friction for both attendees and organizers. Attendees do not install apps or create accounts. A single QR code gives instant access to live translations in multiple languages.
Attendee Translation — AI-Powered Subtitles & Voiceover with Real-Time Language Switching
Event attendees scan a QR code and open a web page. They select their preferred language and receive translations as text subtitles or audio voice-overs directly on their device.
Speaker Control Panel — Present & Switch Languages in Real Time During Live Sessions
Speakers log in from a computer, choose their speaking language, and start the session. Language changes during a presentation are supported without restarting the stream.
Organizer Admin Panel — Event Management, QR Code Generation & Ad Placement
Organizers manage events and venues through a web-based admin panel. They can create events, configure venues, add banners or sponsor ads, and generate QR codes for each location.
Browser-Based, No App Install — Overflow Streaming for Remote Attendees Worldwide
The entire system runs in the browser. This reduces setup time, support requests, and technical issues during live events
Technologies
The architecture was designed to support real-time speech recognition, translation delivery, and low-latency updates for large audiences at physical venues.
🖥Platform Web
🔮 Frontend Next.js, React, Effector
📱 Calls and messaging Vonage SDK
⚙️ Backend NestJS
🔁 Real-time communication Socket.io, WebSockets
🗃️ Database MongoDB
✉️ Messaging RabbitMQ for internal event processing
🗣️ Speech and AI services Speechmatics, Google Cloud Services
Delivery and Outcome
We delivered a complete production-ready system for offline events. VOLO allows organizers to deploy AI translation without complex hardware or mobile apps, reducing technical overhead and making multilingual events easier to run.
Frequently Asked Questions
Explore what it takes to build a product like VOLO – from architecture to integrations and timelines.
How do you build a real-time translation system for offline events?
How do attendees access translations during an event?
Can speakers change languages during a session?
What technologies are used for real-time translation?
Who is this system designed for?
How long does it take to build a platform like VOLO
Within 24 hours you get a realistic estimate, technical recommendations and next steps. Free, no obligations.
01
A senior architect reads itReply the same business day, Mon–Fri.
02
30-min call to scope itWe ask the questions that change the budget.
03
Estimate in 24 hoursBudget, timeline, architecture notes. Yours to keep.
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