What is Auracast?
Auracast is a Bluetooth broadcast audio standard developed by the Bluetooth Special Interest Group (SIG). It lets a single device — a TV, PA system, or dedicated transmitter — stream audio to an unlimited number of nearby listeners simultaneously, without any pairing or setup required on the listener’s end.
Think of it like a local radio station, but delivered over Bluetooth. Anyone with a compatible device can tune in just by being within range.
How is it different from regular Bluetooth?
Standard Bluetooth is designed for private, one-to-one connections — your phone to your earbuds, for example. Each connection is exclusive and paired. Auracast works the opposite way: it broadcasts audio outward like a public signal, and any number of compatible devices can receive it at the same time.
Classic Bluetooth
- One device to one device
- Requires pairing
- Private connection
Auracast
- One device to unlimited listeners
- No pairing needed
- Open broadcast
Who does Auracast help?
Auracast was built with accessibility at its core. While anyone can use it, it has the most transformative impact for people who rely on hearing technology.
Hearing aid and cochlear implant users
Modern hearing aids and cochlear implants are increasingly Bluetooth LE Audio compatible. Auracast lets them stream crystal-clear audio directly from a venue’s sound system — cutting out background noise entirely.
Anyone in a noisy environment
Crowded airports, busy stations, or echoing halls are hard for everyone. Auracast delivers audio straight to the listener, bypassing the acoustic chaos of the room.
Multilingual audiences
A single room can broadcast on multiple Auracast channels simultaneously — one per language. Attendees select their preferred stream without any physical equipment handout.
Where is Auracast being used?
Auracast is designed for any public space where audio matters. Early deployments are appearing in:
- ✈️
Airports & transport hubs
Gate announcements streamed directly to passengers
- 🎭
Theatres & cinemas
Crystal-clear dialogue without a hearing loop receiver
- 🏛️
Places of worship
Sermons and music delivered to every seat
- 🏟️
Conference & event venues
Simultaneous translation and accessible audio
- 🏥
Hospitals & waiting areas
TV audio without disturbing others
- 🚌
Public transport
Real-time travel information and announcements
How do QR codes fit in?
Finding the right Auracast broadcast in a busy venue can be tricky — just like picking the right Wi-Fi network from a long list. An Auracast QR code solves this instantly.
A compatible device scans the code and connects directly to the correct broadcast — no scrolling, no guessing. The QR code encodes the broadcast’s name, its Bluetooth identifier, and optionally a security passcode for encrypted streams.
Venues print these codes on seats, walls, programmes, or screens — the same way you’d display a Wi-Fi QR code.
Ready to create a code?
Generate a SIG-compliant Auracast QR code in seconds.
Want to understand exactly how the QR code string is constructed? Read how codes are generated →