Auracast and Bluetooth LE Audio Explained: What It Is and Why It Matters for Hearing Aid Users

What is Auracast and LE Audio?

A brief summary

Overview    |    Why is Auracast better than classic Bluetooth?    |    Streaming with Auracast    |    Auracast and hearing aids    |    Disadvantages of Auracast    |    Conclusion and Key Takeaways

Last Hearing Aid UK Update:  03/06/2026

Overview

Bluetooth has been part of our lives for over two decades, but for people with hearing loss, it has always had its limits. Auracast and Bluetooth LE Audio are changing that. In this article, we explain what Auracast is, why it matters, and where you can already use it in the UK.

According to the RNID, around 18 million people in the UK live with some degree of hearing loss. For many of them, following a conversation in a busy theatre or catching every word at a concert has never been straightforward. Auracast could change that.

What is Bluetooth LE Audio?

LE Audio, part of the new Bluetooth 5.2 and 5.3 standards, is a low-power version of Bluetooth specifically designed for streaming audio.

This technology is particularly relevant in the UK, where the Equality Act 2010 requires public venues to make reasonable adjustments for people with disabilities. For venues, that is good news. Auracast does not require a costly overhaul of existing infrastructure; it can be added relatively simply, making it a genuinely practical route to better accessibility for a wide range of spaces.

Built into Bluetooth LE Audio is Auracast, a feature that lets a single audio source broadcast to an unlimited number of receivers at once, whether that's Bluetooth earbuds, hearing aids, or other compatible devices.

Battery life matters when you're wearing hearing aids all day, and LE Audio is designed with that in mind. It uses significantly less power than classic Bluetooth, which means more listening time and less time worrying about charging. Connecting and customising your devices is also noticeably simpler, so getting your hearing aids set up the way you want them takes less effort.

Why is it better than classic Bluetooth?

Bluetooth, introduced in 1999, was created for high-bandwidth wireless data transfer, including audio streaming, though that wasn’t its main purpose. 

In contrast, when looking deeper into the technology, LE Audio uses the LC3 (Low Complexity Communication Codec).  In plain terms, LC3 is simply a smarter, more efficient way of compressing and transmitting audio, which means better sound quality at lower power consumption. This means there's a wider range of bit rates and unlimited channels.

From a hearing health perspective, the improvements are meaningful. Built-in hearing aid support and a more seamless, flexible experience make Bluetooth LE Audio genuinely more accessible than classic Bluetooth, and that's a big deal for the millions of people who depend on their devices to hear clearly every day.

What is bit rate, and why is it important?

Put simply, bit rate determines how much audio information travels per second; more of it means better sound. But Auracast and LE Audio don't just improve on classic Bluetooth in that one area; they also reduce latency and use power more efficiently.

Classic Bluetooth holds up fine, but LE Audio is a genuine step up. A lot of that comes down to the LC3 codec we touched on earlier, which handles audio in a smarter, more efficient way.

Streaming audio with Auracast

With Auracast, you can connect to the TV's audio and stream it directly to your headphones or hearing aids, so there's no struggling to hear over the background noise. 

LE Audio allows hearing aid wearers, within range of a compatible transmitter, to connect to Auracast broadcasts with the press of a button or via an app.  This technology not only improves audio quality but also reduces power consumption, enabling developers to add more features without affecting battery life.  

In the UK market, Auracast-enabled hearing aids are now available from most major manufacturers.  Our HCPC-registered audiologists are also now beginning to recommend Auracast-enabled devices for customers who regularly attend theatres, concerts, or places of worship, as early adopter venues start to install this technology.

Auracast and hearing aids

The good news for anyone considering new hearing aids is that Auracast is already here. It is built into the latest devices from most major manufacturers, and the expectation is that it will become standard across the board within the next few years.

For people with hearing loss, that means clearer sound, less background noise, and a genuinely more connected experience, in everyday life and in the public spaces that have historically been the hardest to navigate.

"Auracast is starting to change the questions people ask before they buy. A year ago, most people were asking about Bluetooth streaming to their phone. Now we are increasingly hearing people ask whether a hearing aid will work with the loop system at their theatre or their place of worship. That shift tells me the technology is landing with the people who actually need it most."

Paul Harrison, Council Member, British Society of Hearing Aid Audiologists (BSHAA) 2015–2020, Audiology Expert at Hearing Aid UK

NHS upgraders and Auracast

If you're already wearing NHS hearing aids, you'll know they do a solid job. What they don't currently offer is Auracast compatibility. NHS devices tend to run a generation or two behind the latest commercial models, and widespread Auracast access through that route is still some way off.

For anyone who regularly visits theatres, places of worship, or public spaces where Auracast transmitters are being installed, this is worth factoring into the conversation when you're thinking about upgrading.

Our audiologists are independent and have no ties to any manufacturer, so if you're weighing up whether private hearing aids would make a meaningful difference for you specifically, the advice you receive will be honest and based on your hearing, your lifestyle, and nothing else. A free home visit or free clinic appointment is a good place to start that conversation.

Any downsides to Auracast?

As with any technology, Auracast isn't without its limitations. The most immediate is compatibility; older devices simply won't support it, which means some users will need to upgrade to take advantage of it.

Industry bodies and accessibility organisations have emphasised the importance of maintaining traditional induction loop systems alongside Auracast during the transition period.

With around 18 million people in the UK living with hearing loss, according to RNID's 2024 figures, the potential impact of Auracast is enormous. But it is worth being realistic.

Not everyone will have access to compatible devices straight away, and for many, particularly those on NHS hearing aids, it may be some years before Auracast becomes part of their everyday experience.

Private hearing aid users will have earlier access to Auracast-enabled devices, though many UK private providers offer flexible upgrade programmes and trial periods to help customers access the latest technology.

While Auracast is designed for low power consumption, some devices might still experience higher battery drain during extensive use.

Privacy is also worth a brief mention. Because Auracast broadcasts to multiple receivers simultaneously, manufacturers and industry bodies recommend checking that any device you use supports the latest security protocols. For more detailed information on Auracast, visit the Bluetooth SIG website.

UK rollout and future prospects

UK theatres appear to be among the early adopters of Auracast, with a number of venues already running trials or having made confirmed installations.

Among the confirmed UK venues are Manchester's Contact Theatre and Cheltenham's Everyman Theatre, which were among the first to install the technology, followed by the National Theatre's Dorfman, where a trial ran during Man and Boy in early 2026, and the Bridge Theatre in London, which has also completed a trial.

Beyond theatres, Bristol Temple Meads became the first UK railway station to switch on Auracast in July 2025, with Ampetronic's Auri system installed across platforms, the ticket hall and the pedestrian subway. The Hippodrome in Birmingham is also confirmed as an early UK adopter.

In December 2025, a significant moment for the UK rollout came when major venues, including Shakespeare's Globe, the National Theatre, and the Southbank Centre, joined hearing care professionals and technology companies in publicly committing to working towards an Auracast-enabled future by 2030.

The statement called on arts venues, transport hubs, hospitals and supermarkets to get ahead of the curve and make equal participation the standard in every space.

Wider rollout across public spaces is still developing, but the momentum is real and building quickly. According to ABI Research, cited by the Bluetooth SIG, around 1.5 million public venues will be offering Auracast by 2029, though no specific targets for the UK have been made public yet.

For UK hearing aid users considering an upgrade, Auracast compatibility is worth including in your requirements if you regularly attend theatres, concerts, or places of worship. Whilst the infrastructure is still developing, venues are beginning to install transmitters, and early adopters will benefit as more locations come online.

Summary

Auracast is changing what it means to hear clearly in the world around you, and the right hearing aids can put you at the front of that change. If you are thinking about upgrading or trying hearing aids for the first time, our audiologists can help you find a device that works with the latest connectivity technology and suits your hearing, your lifestyle and your budget.

We're Which? recommended, completely independent of any manufacturer, and our aftercare for life means your audiologist stays with you long after your first fitting.

Call us free on 0800 567 7621, or book a free hearing test at one of our 93+ clinics or in your own home. We will bring the demo aids and show you exactly what modern hearing technology can do.

Key takeaways

✔️ Auracast is a broadcast feature built into Bluetooth LE Audio that lets a single transmitter send audio to unlimited receivers simultaneously. For hearing aid wearers, that means connecting directly to sound systems in theatres, concert venues, places of worship, and transport hubs.

✔️ It's a genuine step up from classic Bluetooth. Lower latency, better sound quality, smarter power use, and built-in hearing aid support make LE Audio the most accessible Bluetooth standard yet.

✔️ Auracast is already here in the UK. Confirmed venues include Manchester's Contact Theatre, Bristol Temple Meads, the National Theatre, the Bridge Theatre, London, and the Hippodrome, Birmingham. More are coming.

✔️ NHS hearing aids don't currently support Auracast. If this technology matters to you, it's one of the clearest reasons to explore private options, and worth raising with an audiologist.

✔️ Most major hearing aid manufacturers now offer Auracast-compatible devices. If you're upgrading, it's worth asking about compatibility as part of your consultation.

✔️ There are some limitations. Older devices won't support it, battery drain can increase with heavy use, and the UK public venue rollout is still developing, though it is building momentum quickly.

Further reading:

• Bluetooth SIG — Auracast Overview (PDF)
• Bluetooth SIG — LE Audio and Auracast blog