Bring speech closer
A direct feed can reduce the effect of distance, room reverberation and surrounding noise. It helps the listener follow the source without relying only on the loudspeakers.
Bluetooth broadcast audio · Sydney & NSW
Auracast broadcast audio.
One source.
More ways to listen.
Bring presentation, venue and TV audio directly to compatible hearing aids, earbuds and headphones. Give listeners a choice of channel and their own listening level.
Explore the benefits, use cases and equipment behind Auracast—and how Masters Voice Technology can integrate a broadcast into your existing AV system.
Broadcast to manyNo individual source pairing
Personal listeningCompatible devices, individual levels
New channel choicesSpeech, TV and supplied language feeds
Upgrade existing AVAnalogue or Dante audio integration
01 / Understand the technology
What is Auracast?
Bluetooth audio, opened up.
Auracast is a broadcast capability within Bluetooth LE Audio. A transmitter sends an audio stream and information about the broadcast. Nearby compatible receivers can tune into that stream without the source establishing an individual paired audio connection with each listener.
A compatible phone, hearing-device app or other assistant can help the listener find and select the broadcast. The receiver then receives audio directly from the transmitter. The experience depends on the device and its software.
That creates a useful option for public and shared spaces: the same presentation can reach a visitor's compatible hearing aids, another person's earbuds and a venue loan receiver.
The three parts of an Auracast system
- TransmitterReceives the source audio and broadcasts it.
- Assistant or selection interfaceHelps the listener discover and join a broadcast.
- ReceiverPlays the audio through a compatible personal device or loan unit.
Look for explicit Auracast support. “Bluetooth 5.4” or “LE Audio” alone does not guarantee that a product can receive a broadcast.
02 / Why it changes the experience
More listening choices.
Less dependence on the room.
The advantage is personal access to a useful audio feed. A well-designed microphone and listening mix remain the starting point.
Use compatible personal devices
Visitors with supported hearing aids or headphones can listen through familiar equipment. Loan receivers provide another route for people without compatible devices.
Serve many listeners
Broadcast delivery avoids pairing the source separately with every attendee. Adding listeners does not require an additional paired stream for each person.
Offer a choice of audio
Suitable systems can carry separate presentation, interpretation or audio-description feeds. Listeners choose the broadcast relevant to them.
Unmute a silent screen
A TV can remain quiet in the room while compatible headphones receive its sound. Multiple screens can offer distinct broadcasts where the system is designed for it.
Build on existing investment
An appropriate transmitter can connect to an existing audio output. The room PA can continue operating while Auracast adds a personal listening pathway.
03 / New options for familiar spaces
Infinium™: personal audio for public spaces
Williams AV’s Infinium system brings Auracast listening to shared spaces, with a controller, remote transmitter and optional handheld receivers. Explore six applications below.
Education
Lectures, lessons and assemblies
Send teaching audio to compatible personal devices or loan receivers.
Explore classroom AV →Transport hubs
Hear the update in a busy terminal
Provide a direct listening option for selected passenger announcements.
Explore announcement systems →Entertainment
A closer connection to the performance
Deliver programme audio in cinemas, theatres and live-performance spaces.
Explore venue AV →Fitness centres
Choose a screen. Hear its audio.
Let members listen to television sound through compatible devices while they exercise.
Explore zoned audio →Conference centres
Follow the speaker or a language feed
Offer presentation audio and separately supplied interpretation channels.
Explore presentation spaces →Houses of worship
Make the service easier to follow
Provide congregants with a personal audio feed alongside the room sound system.
Explore worship AV →Applications and illustrative imagery: Williams AV Infinium. For hardware, Dante connections and compatibility checks, see our Auracast equipment guide.
A useful upgrade scenario
Your training room already has microphones, a DSP and loudspeakers. Auracast can add a personal listening feed without replacing the whole room system. The important design task is deciding what people should hear, then checking that they can join and receive it reliably.
04 / Equipment and compatibility
Auracast transmitters, receivers
and compatible devices.
There are installed professional systems, smaller TV transmitters and personal listening devices. Select equipment around the application, rather than the Bluetooth version on the box.
Auri by Listen Technologies & Ampetronic
The TX2N provides two-channel broadcasting, balanced mic/line inputs, PoE and network management. A Dante version is available. RX1 loan receivers and charging docks support venue operation.
Explore Auri specifications ↗Williams AV Infinium
A controller and remote transmitter architecture supports rack integration and flexible transmitter placement. Analogue and Dante inputs, web management, receivers and charging options suit professional projects.
Explore Infinium specifications ↗Audeara BT-03 Audio Broadcaster
HDMI ARC, optical and AUX inputs provide options for displays and audio sources. Its bypass outputs can preserve an existing speaker path. Assess its suitability for the particular coverage and receiver requirements.
Explore the Audeara broadcaster ↗What can listeners use?
Examples listed in the Bluetooth SIG product directory include ReSound Nexia, Vivia and Savi hearing aids, and Samsung Galaxy Buds2 Pro, Buds3 and Buds3 Pro. Sony advertises Auracast reception on WH-1000XM6 headphones.
The exact model, firmware, assistant and joining procedure matter. Check the manufacturer's current instructions and trial the devices expected at your venue.
Check the official Auracast product directory ↗Plan for people without compatible devices
Provide loan receivers, suitable headphones and neckloops for telecoil users where appropriate. Include charging, cleaning, storage, signage and a staff handover process.
Equipment examples are a starting point for assessment. Australian stock, firmware and the final system configuration are confirmed during procurement.
Choosing equipment? Compare Auri, Infinium, TV adapters and personal listening devices in our Auracast transmitters, receivers and compatibility guide.
05 / Put Auracast in context
How does it fit alongside
other audio technologies?
Swipe left or right to compare all columns.
| Technology | Main role | Where Auracast fits |
|---|---|---|
| Conventional Bluetooth audio | Typically paired audio between a source and a listening device. | Broadcasts a source to many compatible listeners without individual source pairing. |
| Hearing loop | Delivers audio through a magnetic field to compatible telecoils or loop receivers. | Adds a Bluetooth listening route. Existing telecoil users still need appropriate access. |
| Audio over Wi-Fi | Delivers listening audio through a network to supported apps or receivers. | Uses Bluetooth for the listener's audio connection; Wi-Fi onboarding is not part of the broadcast itself. |
| Dante | Transports audio between AV equipment over an IP network. | Can feed a compatible Auracast transmitter. Dante handles equipment transport; Auracast handles personal listening. |
For a broader choice between loop, infrared, RF, Wi-Fi and Auracast, use our hearing augmentation assessment and installation page.
06 / Design · Install · Support
A successful broadcast starts
with the right audio feed.
Masters Voice Technology can assess Auracast integration for commercial and public spaces across Sydney and NSW. We start with your existing equipment, the listening area and the people using it.
A dedicated DSP mix can include presenter microphones, media and remote participants. The loudspeaker and listening feeds can be routed independently where the system supports it.
Explore Q-SYS integration for processing and room-control workflows, and Dante audio networking for compatible network audio feeds.
For ongoing operational requirements, our AV maintenance and managed support page covers the wider support approach.
What we plan and verify
- Useful source audio and the listening mix
- Broadcast names, channels and room-combine routing
- Transmitter placement and coverage across the listening area
- Device joining, receiver compatibility and audio delay
- Loan receivers, charging, signage and staff training
- Privacy and access settings for the intended use
Assess
Review the room, equipment, user groups and desired listening experience.
Design
Select audio feeds, channels, coverage and receiver provision.
Install & test
Integrate the transmitter and check real listening devices in the agreed area.
Hand over
Provide instructions and agree receiver management and support responsibilities.
Auracast broadcast audio is a one-way listening path. It does not provide a microphone return to a meeting, and accessibility requirements must be assessed for the particular building and project.
07 / Your questions answered
Auracast FAQs.
What is Auracast broadcast audio?
Auracast is a Bluetooth LE Audio broadcast capability that lets a transmitter send audio to multiple compatible receivers in range. Listeners select a broadcast rather than pair individually with the transmitter.
Do all Bluetooth headphones support Auracast?
No. A Bluetooth version number or LE Audio claim alone does not establish Auracast reception. Check the exact model, receiver role, firmware and supported method for selecting a broadcast.
Can hearing aids connect directly to Auracast?
Compatible Auracast-enabled hearing aids can receive supported broadcasts. Joining may use a manufacturer app or compatible assistant. Other users may need a loan receiver with headphones or a neckloop for telecoil-equipped hearing aids.
Does Auracast need Wi-Fi or internet?
The audio broadcast uses Bluetooth and does not require an internet connection. A professional transmitter may still use Ethernet for power, management or an incoming Dante audio feed.
How many people can listen at once?
Auracast is a broadcast, so it does not create a separate audio connection for each listener. There is no pairing-based listener limit; each compatible receiver must be within usable coverage.
Can we add Auracast to our existing PA or AV system?
Often, yes. A suitable transmitter can receive an audio feed from an existing mixer, processor or display. We assess output connections, audio routing, transmitter location and receiver needs before defining the upgrade.
What range and audio delay should we expect?
Range and delay depend on the transmitter, configuration, building and receiver. Test the actual listening area and devices, especially where the listener can also hear loudspeakers or needs synchronisation with a screen.
Does Auracast replace a hearing loop?
It can complement a hearing loop and introduce direct listening for compatible personal devices. Existing telecoil users still need a suitable listening route. System selection and any accessibility requirements should be assessed for the particular project.
Can Auracast provide different languages or audio description?
Yes, suitable systems can broadcast separately supplied interpretation or audio-description feeds. Auracast carries the audio; an interpreter or separate service must create that content.
Is Auracast suitable for a Teams or Zoom room?
It can distribute a listening mix that includes presenter microphones and remote participants. Auracast broadcast audio is one way and does not provide the listener's microphone return to the meeting.
Can broadcasts be private?
Auracast supports encrypted broadcasts with a broadcast code where implemented. Radio coverage can extend beyond walls, so access control and the full AV security design need to match the use of the room.
What affects the cost of an Auracast installation?
The main factors are coverage, channel count, analogue or Dante integration, transmitters, loan receivers, charging, cabling, signage, commissioning and staff training. Share floor plans, existing equipment and intended uses for an itemised scope.
08 / Keep exploring
Connect the technology
to your project.
Make the next listening experience better
Could Auracast work
in your space?
Send us your floor plan, current AV equipment and intended use. Tell us who needs to listen, whether you need multiple channels and what devices or loan receivers you want to support.
Request an Auracast assessment ↗Technology references · Reviewed October 2026
Bluetooth SIG: how Auracast works ↗Auri system guidance ↗Williams AV Infinium ↗