This hidden setting opens your TV as much as a number of headphone choices
Someplace within the sound menu of a number of latest televisions, tucked below a heading most individuals scroll straight previous, sits a function doing one thing no soundbar or streaming stick can handle: sending one audio stream to as many headphones as you may match within the room, unexpectedly, with out pairing a single one in all them.
The function, known as Auracast, is a part of the Bluetooth LE Audio commonplace and has been transport on costly TVs since 2023. Samsung bought there first, LG adopted on its 2025 units, and Panasonic pushed it out to 2024 and 2025 fashions by firmware final December. What none of them actually did, although, was inform anybody, which is why most individuals studying this can have scrolled previous it within the menu of a TV they already personal. If in case you have ever gone digging for hidden Bluetooth audio on an LG TV, you may have been inside two clicks of it.
Which group developed and maintains the Auracast broadcast audio commonplace?
Right! Auracast is a trademark and commonplace developed by the Bluetooth
Particular Curiosity Group (SIG). It was formally launched as a part of the Bluetooth LE Audio
specification, which the SIG printed in 2022.
Not fairly — Auracast is owned and maintained by the Bluetooth Particular
Curiosity Group (SIG). It varieties a key a part of their LE Audio initiative, introduced in 2022 alongside the
LC3 audio codec.
Auracast is constructed on prime of which Bluetooth expertise?
Right! Auracast is a part of the Bluetooth LE Audio specification, which
launched a brand new structure for audio over Bluetooth Low Vitality. This enabled broadcast audio
situations that traditional Bluetooth might by no means effectively help.
Not fairly. Auracast is constructed on Bluetooth LE Audio, a brand new audio
framework launched over Bluetooth Low Vitality. Basic Bluetooth (BR/EDR) dealt with audio in a different way and
could not help broadcast to limitless listeners.
Which new audio codec was launched alongside LE Audio and is central to how
Auracast delivers sound?
Right! The LC3 codec — Low Complexity Communications Codec — was
developed particularly for Bluetooth LE Audio. It delivers higher audio high quality than SBC at decrease
bitrates, making it best for broadcast situations like Auracast.
The proper reply is LC3 (Low Complexity Communications Codec). Developed
alongside LE Audio, LC3 provides superior audio high quality in comparison with the older SBC codec whereas utilizing much less
energy and bandwidth — important for broadcast audio.
What’s the most variety of listeners that may concurrently obtain an Auracast
broadcast?
Right! One in every of Auracast’s strongest options is that it helps an
limitless variety of simultaneous listeners. As a result of it makes use of a one-to-many broadcast mannequin, any
appropriate receiver inside vary can tune in, with no pairing required.
Really, Auracast helps a limiteless variety of simultaneous
listeners. Not like traditional Bluetooth connections, Auracast makes use of a broadcast mannequin — no pairing, no system
limits — making it appropriate for venues with hundreds of individuals.
Auracast has important implications for individuals who use listening to loops. Which
assistive expertise use case is it particularly designed to enhance?
Right! Auracast can stream audio on to appropriate listening to aids
and cochlear implants, providing a modernised different to ageing induction loop techniques. That is
thought-about one of the impactful real-world accessibility advantages of the usual.
The proper reply is streaming on to listening to aids and cochlear
implants. Auracast represents a significant step ahead in listening to accessibility, doubtlessly changing the
induction loop techniques utilized in theatres, transport hubs, and locations of worship.
In a typical Auracast deployment in a public venue, how do receivers uncover and
tune right into a broadcast stream?
Right! Auracast receivers scan for Bluetooth LE broadcast
bulletins, which act like radio stations — seen and tunable with out pairing. Customers merely choose
the stream they need from an inventory on their system, very like tuning a radio.
Not fairly. Auracast works by broadcasting stream bulletins over
Bluetooth LE that appropriate gadgets can scan for and choose. There is not any pairing, no PIN, and no Wi-Fi
required — it is designed to be as friction-free as tuning right into a radio station.
Which well-known public venue state of affairs was ceaselessly cited by the Bluetooth SIG
when selling Auracast at launch?
Right! The Bluetooth SIG ceaselessly highlighted gyms, airports, and
bars with muted TVs as prime use circumstances. Auracast would let anybody with appropriate earbuds or listening to
aids tune into the audio from close by screens with no need a devoted receiver or proprietary app.
The state of affairs most cited by the Bluetooth SIG was gyms, airports, and
bars with silent TVs. As a substitute of everybody observing muted screens, Auracast would let patrons
wirelessly tune into the audio utilizing their very own earbuds or listening to gadgets.
Earlier than Auracast, what was the most typical method venues broadcast audio to a number of
wi-fi headsets concurrently — for instance, at silent discos?
Right! Silent discos and multi-channel venue audio techniques
historically relied on proprietary RF transmitters working in unlicensed frequency bands. These
required devoted, typically costly {hardware} headsets, not like Auracast which works with commonplace
Bluetooth gadgets.
The reply is proprietary RF (radio frequency) transmitters and
receivers. Techniques like these utilized in silent discos required purpose-built {hardware} on each ends.
Auracast goals to exchange this with an open commonplace that works with on a regular basis Bluetooth earbuds and
listening to aids.
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Auracast turns your TV right into a small broadcast station
However the TV has to do the work, not your headphones
Odd Bluetooth works like a handshake. Your TV and one pair of headphones agree to talk to one another, and that connection is unique, which is why watching films with headphones has all the time been a solo exercise by default. Auracast, nevertheless, skips the handshake and lets the TV merely broadcast, with any appropriate receiver in vary tuning in, quite than the best way you’ll be a part of a Wi-Fi community. There is not any pairing restrict as a result of there is no pairing.
The Bluetooth SIG, which develops the usual, notes that the variety of receivers is successfully capped by how many individuals match within the room. Extra usefully, every receiver controls its personal quantity independently, which solves the oldest argument in home tv: one particular person creeping the quantity up, the opposite creeping it again down. The SIG’s personal technical overview explicitly names that state of affairs.
There’s a second trick that will get much less consideration and doubtless deserves extra. An Auracast transmitter can ship a number of streams without delay, so a TV might carry an English stereo combine and a Spanish one concurrently, or run its regular soundtrack by the audio system whereas broadcasting a separate dialogue-boosted mono stream to whoever wants it. Latency is low sufficient, per the SIG, that somebody utilizing transparency mode or an open-fit listening to support hears the room and the printed collectively with out an echo. That final element means lip-sync drift is what’s made Bluetooth headphones a compromise on TVs for a decade.
Which TVs have Auracast?
But you’ll by no means work it out from the advertising and marketing
Samsung was the primary so as to add Auracast to its high-end 2023 units. Samsung’s personal US neighborhood workforce has since described help as protecting chosen Neo QLED 4K and 8K and Micro LED fashions from 2023 onward, naming the QN800, QN900, QN990F, and QN900F. LG launched it in 2025 throughout its OLED vary and the QNED85A and above, and Panasonic started rolling it out to appropriate 2024 and 2025 fashions in December, saying the variety of related headphones is limitless.
On a 2025 LG set, you can see it below Settings > Sound > Sound Out. That is the identical menu the place the usual one-device Bluetooth choice is positioned, which is price noting as a result of the 2 are simple to confuse.
Samsung’s Multi-output Audio, which sits below Basic & Privateness, then Accessibility, is a special function. It allows you to run the TV audio system and one Bluetooth system concurrently, every with its personal quantity degree. It is genuinely helpful, nevertheless it is not Auracast, and it does not broadcast to a room.
In case your TV is just not on the record, an adapter will do it. Auracast transmitters that settle for optical or HDMI ARC enter are already on sale, which is a far cheaper different to changing a working tv. Do verify the enter, although: loads of latest units have dropped the headphone jack solely.
The headphones are the place the entire thing falls aside
However that is not the one purpose it is stalled
Auracast wants receivers that help Bluetooth LE Audio and the LC3 codec, and a pair of headphones promoting Bluetooth 5.3 does not inform you whether or not they qualify. The Bluetooth SIG does keep an inventory of licensed merchandise, however since there is no strategy to confirm whether or not it is updated, even the official reply includes some guesswork.
After which there’s Apple. AirPods Professional 3 launched in September 2025 with out Auracast help, and Apple hasn’t adopted the usual in any respect, on earbuds or iPhones. Given how a lot of the US headphone market runs on AirPods, that single absence in all probability explains extra about Auracast’s invisibility than any menu resolution. A function you may’t display to most of your clients is a tough function to promote.
Submitting it below accessibility could possibly be the error
But it is also essentially the most trustworthy factor about it
LG’s solely official point out of Auracast on its TVs got here in a partnership announcement with Starkey listening to aids, which says lots about how the corporate views it. Broadcast audio was designed to exchange telecoil loops, and for listening to support wearers, it is a real enchancment over the proprietary streamer bins that solely ever served one particular person. Anybody who has watched a guardian surrender on the tv as a result of the dialogue has gone will perceive why that is the use case that bought constructed first.
The difficulty is what accessibility framing does to a product roadmap. Options filed below accessibility get shipped, documented in a help article, after which left alone. They do not get distant buttons, onboarding wizards, or a line on the spec sheet at Finest Purchase. They actually do not get the ecosystem stress that will push Apple to help the usual or push headphone makers to construct a good assistant expertise. Which suggests the folks it was designed for find yourself with a half-finished model of it too.
In case you’re procuring this yr, I’d deal with Auracast as a nice-to-have quite than a deciding issue, and verify your headphones earlier than you verify the TV. However I’d additionally just like the manufacturers to cease being coy. Samsung, LG, and Panasonic have all shipped essentially the most fascinating factor to occur to tv sound since eARC, and are at present letting it sit in a submenu like a firmware changelog no one learn.