Technology
Technology
Auracast in short — without the engineering jargon.
What is Auracast?
Auracast is part of the Bluetooth LE Audio standard that lets one source broadcast audio to an unlimited number of receivers. It works like a radio station: the transmitter broadcasts, and any compatible device can tune in.
For the listener this means the sound of the church, the hall or the terminal arrives directly in their own hearing aid, earbuds or phone — without reverb, background noise or distance.
Why does it matter?
- An open standard. Auracast is not one manufacturer’s product; it is defined by the Bluetooth SIG as part of Bluetooth LE Audio.
- Unlimited listeners. One broadcast serves every compatible device in the space.
- No pairing. Listeners join by themselves — no staff needed, no queues.
- Privacy and dignity. Listeners use their own devices. Loan receivers are optional, not required.
- The future. Auracast complements and gradually replaces traditional induction loops. New hearing aids and earbuds support it more widely every year.
What does a listener need?
A compatible device: a hearing aid, earbuds or a phone with Bluetooth LE Audio support. Support grows year by year. Spaces that want to serve everyone today can also offer loan receivers.
What does a space need?
An audio source (microphone, mixing desk or PA system), an Auracast transmitter and — most importantly — a well-planned commissioning. We help at every step.
Technology
How it works
Auracast is a Bluetooth LE Audio standard for sending sound directly to hearing aids, earbuds and phones — from one source to an unlimited number of listeners.
Sound leaves the source
From a microphone, a mixing desk or a PA system, the audio is routed to an Auracast transmitter.
It is broadcast
The transmitter shares the audio into the space using Bluetooth LE Audio. There is no limit on the number of listeners.
The listener joins
A hearing aid, earbuds or a phone joins the broadcast — like choosing a radio station. No pairing, no queues.
Everyone hears
The sound arrives directly in the ear: no reverb, no background noise, no distance.
Who is it for?
People who use hearing aids — and anyone who has ever tried to catch an announcement through noise, a sermon from the back pew or a line from the balcony.
- Built on the open Bluetooth LE Audio standard
- Works with compatible hearing aids, earbuds and phones
- One broadcast, an unlimited number of listeners
- Complements and gradually replaces traditional induction loops