For decades, hearing aid wearers have dreamed of seamless audio streaming: crystal-clear phone calls, effortless television listening, and the ability to tune into public announcements without straining. Whilst traditional Bluetooth has brought us closer to this reality, it has always carried limitations: battery drain, connectivity hiccups, and the inability to stream multiple sources simultaneously. Now, a new wireless standard promises to reshape the landscape entirely.
Bluetooth Low Energy (LE) Audio and its public broadcast feature, Auracast, represent the most significant leap in hearing aid connectivity since the introduction of direct streaming nearly a decade ago. If you wear hearing aids, or are considering them, understanding these technologies will help you make informed decisions about your next upgrade and prepare for a world where assistive listening becomes genuinely universal.
What Is Bluetooth LE Audio?
Bluetooth LE Audio is the latest generation of Bluetooth wireless technology, specifically designed with hearing aids and other audio devices in mind. Until now, hearing aids have streamed using a mix of approaches, such as Apple’s Made for iPhone protocol, Google’s ASHA or, for some brands, Classic Bluetooth. LE Audio is built on Bluetooth Low Energy and is the first common standard designed with hearing aids in mind. This matters enormously for hearing aid users, for whom battery life remains a perennial concern.
At the heart of LE Audio sits the LC3 codec (Low Complexity Communications Codec). This advanced audio compression algorithm delivers higher sound quality whilst consuming less power than the older SBC codec used in Classic Bluetooth. In practical terms, this means you can stream your favourite podcast or take a phone call with less impact on your hearing aid batteries.
Beyond power efficiency, LE Audio supports multi-stream audio, which sends separate, synchronised streams to each ear, so stereo streaming to a pair of hearing aids is built into the standard rather than added by each manufacturer.
Introducing Auracast: Public Broadcast Audio
Auracast is perhaps the most exciting consumer-facing feature within the LE Audio specification. Technically known as Bluetooth LE Audio broadcast, Auracast lets one audio source transmit to any number of receiving devices at the same time. Think of it as a public radio broadcast, but localised and accessible only to those with compatible hearing aids or headphones within range.
The use-cases are transformative. Imagine walking into a cinema and your hearing aids automatically detect an Auracast broadcast, allowing you to stream the film’s audio directly, personalised to your hearing loss, without requesting a separate assistive listening device. Airport gate announcements could stream to your hearing aids, eliminating the frustration of garbled PA systems. Lecture theatres, places of worship, museums, conference centres, and performing arts venues could all become effortlessly accessible.
In Australia, where hearing loss affects approximately one in six people, the potential for Auracast to improve quality of life and social participation is substantial. For audiologists, this technology offers an opportunity to move beyond individualised rehabilitation toward genuinely inclusive public infrastructure.
Compatibility Realities: What You Need to Know
As promising as these technologies sound, compatibility is still patchy. Not all hearing aids support LE Audio, and those that do may not support every feature, including Auracast.
Most major hearing aid manufacturers have begun rolling out LE Audio-compatible devices. Many recent premium models are LE Audio-capable or described as Auracast-ready, and in some cases the feature is switched on later through a firmware update. Older models generally can’t be upgraded, because the feature depends on the hearing aid’s radio hardware. Check the specific model with your audiologist rather than assuming.
On the source side, compatibility is gradually improving. Many recent Android phones include LE Audio support, though implementation varies between manufacturers. Support on iPhone has been slower to arrive, so check the current position for your phone and hearing aids. For television streaming, you’ll generally need a separate transmitter, as most televisions don’t yet include native support (our guide to hearing aids and the TV covers the options).
Before upgrading, it’s essential to verify compatibility across your entire ecosystem. Your audiologist can help assess whether your main listening devices (phone, television, computer) will work with LE Audio hearing aids, or whether you’ll need additional accessories. At The Audiology Place, we take a brand-agnostic approach, ensuring recommendations are based on your lifestyle needs rather than manufacturer relationships.
Upgrade Paths: Should You Make the Switch?
The decision to upgrade to LE Audio hearing aids depends on several factors: your current devices’ age and performance, your streaming habits, and your budget.
If your current hearing aids are nearing the end of their usual lifespan, you may be due for an upgrade regardless of connectivity features. Hearing aid technology advances rapidly, with improvements in speech processing, noise reduction, and automatic environmental adaptation often delivering more tangible benefit than connectivity alone.
For regular streamers (people who spend hours each day on phone calls, watching television or listening to audio), LE Audio’s battery efficiency and multi-stream capability offer genuine quality-of-life improvements. The reduction in listening effort during streamed content can be particularly meaningful if you experience fatigue during extended listening.
However, if you primarily use your hearing aids for face-to-face conversation and only occasionally stream audio, the urgency to upgrade diminishes. Classic Bluetooth remains perfectly functional for intermittent use, and waiting another year or two allows the technology ecosystem to mature and potentially reduces cost.
When considering an upgrade, ensure your audiologist performs comprehensive verification using Real Ear Measurement (REM). REM objectively confirms that your new hearing aids are programmed correctly for your specific hearing loss and ear canal acoustics. This validation step is critical regardless of connectivity features, yet remains underutilised in many clinics. At The Audiology Place, REM is standard practice for hearing aid fittings, ensuring you receive the full benefit of your investment.
Auracast in the Real World: Current Availability
Whilst Auracast’s potential is considerable, public deployment in Australia is at an early stage and installations are still uncommon.
The rollout faces infrastructure challenges. Venues must install Auracast transmitters, train staff, and clearly signpost availability. For many organisations, this represents a significant accessibility investment with uncertain uptake in the short term. However, as the installed base of compatible hearing aids grows, the business case strengthens.
Deployment has moved faster in some overseas markets, and Australia is likely to follow over time. Until then, hearing loops remain the established system in many venues, which is one reason a telecoil is still worth having.
Setting Up LE Audio and Auracast: Practical Steps
If you’ve purchased LE Audio-compatible hearing aids, setup typically involves several steps:
Initial Configuration
Your audiologist will pair your hearing aids with your smartphone during the fitting appointment, configuring the connection for optimal audio quality and battery performance.
Adjusting Streaming Settings
Within your hearing aid app, you can typically adjust streaming volume independently from environmental sound, set preferred audio balance, and configure automatic switching between sources. Your audiologist should demonstrate these settings and help you establish comfortable defaults.
Accessing Auracast Broadcasts
When you encounter an Auracast-enabled venue, your hearing aids will detect available broadcasts. Depending on your device, you may receive an automatic notification or need to scan for broadcasts via your smartphone app. Select the broadcast you want (for example, “Gate 23 Announcements” or “Cinema 5 Audio”) and streaming begins. Most implementations allow you to adjust the mix between the broadcast and environmental sound, so you can still hear companions speaking whilst receiving the streamed audio.
Troubleshooting Common Issues
As with any technology, occasional issues arise. If you experience dropouts or poor sound quality, first ensure your hearing aids are fully charged and that you’re within the broadcast range. Moving closer to the transmitter often resolves issues. If problems persist, restarting your hearing aids, usually by placing them briefly in the charger, can reset the connection.
Limitations and Realistic Expectations
Transparency about limitations is essential when discussing new technology. LE Audio and Auracast, whilst impressive, are not without constraints.
Battery life, though improved over Classic Bluetooth, still diminishes faster during streaming than during ambient listening alone. If you stream continuously for several hours, you may need to recharge or change batteries mid-day, particularly with smaller hearing aid styles.
Latency, the delay between the sound being produced and you hearing it, is designed to be lower with LE Audio than with older Bluetooth streaming, which helps with lip-reading during video calls. It isn’t zero, though, and some people notice slight delays during live performances or video content.
Range limitations also apply. Auracast works within a limited distance of the transmitter, and physical barriers (walls, large crowds) can reduce this further. Don’t expect to receive a cinema broadcast from the lobby, for instance.
Finally, audio quality depends on the source. A poorly configured Auracast transmitter or low-quality source material will produce disappointing results regardless of your hearing aids’ capabilities. This isn’t a limitation of the technology per se, but rather a reminder that the entire audio chain matters.
The Road Ahead: What to Expect
Bluetooth LE Audio and Auracast are a real shift in hearing care, moving us toward a future where hearing assistance is embedded in public infrastructure rather than solely dependent on individual devices. Over the next few years, compatibility is likely to become more common across hearing aids and consumer electronics, and more public venues are likely to adopt Auracast.
For audiologists, this technology reinforces the importance of comprehensive aftercare. Simply dispensing LE Audio hearing aids isn’t sufficient; patients need education about features, assistance with connectivity troubleshooting, and regular follow-up to ensure they’re maximising benefit. At The Audiology Place, we schedule follow-up appointments after every fitting, with ongoing support available as needs evolve.
If you’re considering hearing aids or contemplating an upgrade, the conversation should encompass your complete auditory lifestyle, not merely your hearing test results. Speech-in-noise testing, lifestyle questionnaires, and discussion of your daily listening environments all inform appropriate recommendations. LE Audio capability may be an important factor, but it’s one element within a broader rehabilitation strategy.
As Australia’s audiology landscape continues to embrace evidence-based practice and patient-centred care, technologies like Bluetooth LE Audio and Auracast offer exciting tools to improve outcomes. However, they remain just that: tools. The foundation of successful hearing rehabilitation continues to rest on accurate diagnosis, properly verified fittings, comprehensive patient education, and ongoing audiological support.
For personalised advice about whether Bluetooth LE Audio hearing aids are appropriate for your needs, schedule a comprehensive hearing assessment with your local audiologist. At The Audiology Place, we provide evidence-based, brand-agnostic recommendations tailored to your individual hearing profile and lifestyle.
