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@HauntedOwlbear@eldritch.cafe

Post #2510194

2026-05-12 12:53 UTC

Until two pairs of Bluetooth headphones can be simultaneously paired with a single audio source, the technology lags behind those stereo splitters that kids in the 80s used to share the output from their Walkman. EDIT: It's been implemented in some of the latest Bluetooth specs! Thanks to everyone who shared their knowledge/research of that. I've dropped some links here: https://eldritch.cafe/@HauntedOwlbear/116562932020469417 And there are more in the replies.

Replies (11)

  • @bx@tiny.tilde.website 2026-05-12 12:58

    @HauntedOwlbear@eldritch.cafe gur genuine best way ive found to do it has been to connect a splitter to gur audio out with 2 of those lil 3.5mm->bluetooth transmitters on gur ends

    Open ##2759536

  • @HauntedOwlbear@eldritch.cafe 100% agree.

    Open ##2759537

  • @SRLevine@neuromatch.social 2026-05-12 13:54

    @HauntedOwlbear@eldritch.cafe I had one of those splitters floating around through multiple cross country moves and finally gave it away a couple of years ago to someone who was desperate for one the night before starting a road trip with her small children*. I guess they are no longer super common, despite still being incredibly useful. *she had one portable DVD player and two sets of wired head phones and zero desire to listen to the same kids movie over and over while she drove, she was very emphatic about that

    Open ##2759538

  • @dryak@mstdn.science 2026-05-12 14:39

    @HauntedOwlbear@eldritch.cafe The worst part: it's actually possible, a lot of headphones allow it... But only using some weird proprietary extension, only from the official app(*), and only among devices within the same manufacturer(**). It's as if you needed to buy one of those 80s' splitter for each separate brand of wired headphones. 🤮 (*): kudos to Logitech to allow this with only buttons presses, no app required. (**): am sure some noname on AliExpress forgot to put limitations and might cross pair.

    Open ##2759540

  • @dryak@mstdn.science 2026-05-12 17:13

    @glassresistor@sfba.social @HauntedOwlbear@eldritch.cafe oh, that's indeed an interesting new standard: https://en.wikipedia.org/wiki/Auracast ! I wonder if it would be possible to retro-fit into headphones with community firmware (e.g. @pine64@social.treehouse.systems 's Pinebuds Pro)

    Open ##2759542

  • @glassresistor@sfba.social Oooh, you're right, I see that multi-stream audio was added to the Bluetooth LE standard in the Bluetooth 5.3 spec. finally https://www.bluetooth.com/learn-about-bluetooth/feature-enhancements/le-audio/ This appears to be part of the auracast protocol someone else mentioned in the replies here. https://www.bluetooth.com/auracast/ (I used to attend Bluetooth SIG meetings, but it's been a little while to be honest.) @dryak@mstdn.science @pine64@social.treehouse.systems

    Open ##2759543

  • @vikki@know.me.uk 2026-05-12 16:50

    @HauntedOwlbear@eldritch.cafe Apple did this ages ago with its own stuff. You can pair a couple pairs of AirPods and other supported accessories for multiple listeners.

    Open ##2759549

  • @craigmorgan@mastodon.social 2026-05-12 18:03

    @HauntedOwlbear@eldritch.cafe the formal way to achieve that was ratified for BT5.x, its labelled as Auracast, which supports broadcast to multiple BT listeners. It was originally proposed for larger auditorium like uses (ie. imagine a concert alternative to closed-loop systems), but as the tech is part of the current BT 5.x stacks, it can be used down into multiple headsets for phones, simulcast for TVs, broadcast guides in museums, etc. It utilises BT low energy (LE) for efficiency.

    Open ##2759550

  • @prism@infosec.exchange @HauntedOwlbear@eldritch.cafe I just bought one a few years ago, still works great.

    Open ##2759552

  • @HauntedOwlbear@eldritch.cafe I still have a 3.5mm splitter I bought for like $0.35 at RadioShack in ~1997

    Open ##2759553

  • @lkanies@hachyderm.io 2026-05-12 19:36

    @HauntedOwlbear@eldritch.cafe I think about this constantly while watching tv. My father in law would like to use his AirPods when watching, but then none of us could hear. Or, my wife and I could use ours while the kids are sleeping. Nope. It’s either single-user, or out loud.

    Open ##2759554