The Technology
What is Auracast™ and why does it change everything?
Auracast™ belongs to the next generation of Bluetooth®, fundamentally changing how you interact with the devices around you. It replaces the traditional pairing with a seamless connection, and lets a single source broadcast to unlimited listeners at higher quality and even lower latency than classic Bluetooth®.
a✱Titan builds on Auracast™ as its foundational layer: turning the standard into products people can actually use.
Auracast™ is useful from assistive listening to orchestrating every speaker in the room. Every phone, TV, and pair of headphones will eventually catch up to this new-tech, a✱Titan is creating the gateway now.
splitR is the first device built to make Auracast™ actually usable today.
One source. Unlimited listeners.
A single broadcast reaches every nearby device (phones, headphones, hearing aids, speakers) with no pairing and no listener limit.
Sub-millisecond sync.
Built on Bluetooth® LE Audio (LC3). Every listener hears the same waveform at the same instant: no drift, no echo across a room.
Open standard. Lower power.
Higher fidelity at a fraction of classic Bluetooth®'s energy draw. Any compliant device can join: no walled gardens, no proprietary licensing.
There will be almost 2.5 million Auracast™ broadcast audio deployments globally.
At Sony, we believe that the widespread adoption of Bluetooth® LE Audio will enable even better Bluetooth® audio user experiences.
The R Series
Auracast™ is the future.
The R Series makes it the present.
Plug it into any audio source and broadcast to anything that listens, including the gear you already own.
Where it lands
Built for every space audio touches.
From terminals to sanctuaries, Auracast™ turns broadcast audio into something every listener can join: on their own device, in perfect sync.
Frequently asked
Auracast™, in plain language.
Auracast™ is a Bluetooth® broadcast feature that lets a single audio source stream to many nearby receivers such as headphones, speakers, and hearing aids, at the same time and in sync.
Classic Bluetooth® is point-to-point: one source pairs to one device. Auracast™ is point-to-multipoint: one source broadcasts to any number of receivers, and each listener joins without its own pairing handshake. It runs on Bluetooth® LE Audio, which is more power-efficient than classic Bluetooth®.
Native support is rolling out on newer Android phones (such as the Samsung Galaxy S24/S25 and Pixel 9), select TVs, hearing aids, and earbuds shipping with Bluetooth® 5.2+ and LE Audio. Most existing speakers, headphones, and older phones do not support Auracast™ natively, so splitR® bridges them onto the network so you don't have to replace what you already own.
LC3 (Low Complexity Communication Codec) is the codec for Bluetooth® LE Audio. It carries 48 kHz audio at lower bitrates than the older SBC codec, with lower latency and reduced power draw, which means longer battery life on hearing aids, earbuds, and transmitters like splitR®.
Technical Benchmarks
Higher fidelity. Lower power. Open spec.
Auracast™ rides on the LC3 codec (the mandatory codec for Bluetooth® LE Audio), delivering broadcast-grade audio that outperforms classic Bluetooth® on every meaningful axis.
48 kHz
Full-band stereo
True full-band sample rate at bitrates from 24 to 124 kbps.
LC3
Mandatory codec
Better quality than SBC at half the bitrate, and far less power.
PBP
Public Broadcast Profile
The spec layer that lets any compliant Sink discover and join public Auracast™ streams in venues.