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I want to be able to have more than two possibly 15 people at once to connect via bluetooth to get audio in a room. Is this possible or are there better more universal solutions that do not require so many steps?

I want to be able to have more than two possibly 15 people at once to connect via bluetooth to get audio in a room. Is this possible or are there better more universal solutions that do not require so many steps?

(post is archived)

[–] • 1 pt

As a way to niggerrig this could you not just broadcast your audio over wifi, have people connect to your DLNA or w/e stream via their phones and connect their specific bluetooth headset to their specific phone? Yes it requires them to have a smart phone and blah blah blah, but it should work.

[–] • 1 pt (edited )

The latest Bluetooth 5 specification allows up to 7 device connections simultaneously to a primary device in active mode.

I've been looking for a Bluetooth 5.0 hub or router that does broadcast to more than 2 devices at the same time too and couldn't find such product.

Edit: There's a solution, but it will be costly

https://avantree.com/tr2403-wireless-transmitter-receiver-set

[–] • 0 pt

So no Bluetooth broadcast? I looked a few years back and was stymied as well. I think it stemmed from a commercial for something showing a indoor concert show thing with no noise, but the entire audience wearing wireless headphones. Seems like a thing that should exist.

[–] • 1 pt

There's probably some professional solutions, but it would require some ASIC or ARM based boards to handle encoding of audio to multiple BT radio chipsets

I'll investigate and let you know if I find anything.

Another solution would be to use a Pi4 with a usb hub and several cheap BT 5.0 usb adapters.

[–] • 1 pt

Found a solution (up to 10 devices) but it's actually an analog audio splitter to several BT transmitters (each can handle two BT headphones)

https://www.ebay.com/itm/KOKKIA-iSplitter-X5-5WaySplitter-10-persons-with-5-Bluetooth-iSplitters-/252647208246

[–] • 0 pt
[–] [deleted] • 1 pt

I've seen that commercial and it brought it mind. I have a teacher friend who was asking this for a bunch of kids and all I could see was some old Sennheiser headphones and she wanted them to bring their own.

You could do a stream service but creates a delay and could be more cumbersome for the teacher to setup.

[–] • 0 pt
[–] • 0 pt

Wait. Bluetooth only works by unique pair of transmitter + receiver? That's gay as fuck.

[–] • 0 pt

The problem is bluetooth is a two way communication protocol unlike analog audio transmissions.

[–] • 0 pt

Bluetooth is designed to pair with only a single device. However, you can buy multiple bluetooth transmitters and connect them together. You'll just need to ensure they have distinct Ids so you can connect to them individually with your bluetooth receiver device. In theory, there is no limit as to the number of transmitters you can use.

[+] [deleted] • 0 pt
[–] • 0 pt

Wireless headphones do this easily, if you don't have to do Bluetooth.

Otherwise, you will need a transmitter for each headset.

[–] • 0 pt

Have you thought of a Livestream app? Multiple apps specialise in music hosting, some of which even working with streaming services like Youtube and Spotify. Some that come to mind are TheClub and Ampme.

If you're still set on going the Bluetooth route, Cassia makes a Bluetooth router that can connect to up to 22 devices within a 1000ft radius.

https://www.amazon.com/Cassia-Networks-C100-10-Bluetooth-Router/dp/B01M1H55DO

[–] [deleted] • 0 pt

I don't think the TheClub app stuff would work as it was something I originally recommended but got shotdown. The Cassia looks nice but how much and real technical overkill? Can't find a price anywhere and that model is discontinued.

[–] • 0 pt

~The Cassia C100 retails for roughly $100.~ Avoid used as product is no longer supported.

Thonet&Vander has secured the rights to this product and sells it via their website for $150. You can purchase one at https://thonet-vanderspeakers.store/thvstores/product/multi-room-hub/

[–] • 0 pt (edited )

Not available anymore.

Answer from the seller in reviews:

The Cassia Hub Bluetooth Router is currently only compatible with the ECO dot for playing music to your Bluetooth speakers at a distance. The ECO dot connects to the Cassia Hub which in turns connects up to 3-Bluetooth speakers or connected speaker pairs. If you have any additional questions, please feel free to contact Cassia Networks