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Linux, Bluetooth and speakers

2020-02-26 by: Dan Lyke
From: Dan Lyke 
The only Bluetooth audio devices I've used with my Linux laptop have been
super cheap headphones and headphone adapters. They have not been terribly
reliable (either the devices, or the connection), which is kinda fine
because, you know, it's just headphones for me.

But I'm also a square dance caller, and regularly sounding a hall for a lot
more people than just me.

Last night I was playing some audio that wanted to be relatively high
quality, so I dragged a QSC K8 speaker into the living room, was listening
to the raw recordings of some amazing vocalists, and realized that there
were some noises coming out of my laptops headphone jack that I couldn't
hear when I was set up in a big hall, but... even if we don't hear these
things consciously they're there, and it'd be nice to have a little less
tethering between my laptop and the speakers.

So I grabbed one of these cheap Bluetooth adapters (like I paid $11 for 3
of them off Meh.com), and it took care of the artifacts, *except* that it
was finicky about pairing each time, and would only run off of its internal
battery, not while it's plugged in.

I would love to find a *bombproof* Bluetooth audio D/A adapter. Like maybe
even XLR out. Pairs seamlessly every time so I don't ever have to worry
about if my set's gonna go well. Something I can zip-tie to my mixer board,
that just works, and just works with Linux.

Anyone got a recommendation?

=============================================================== From: "Mike (meuon) Harrison" ------------------------------------------------------ My cheapo mixer (Pyle Professional) has a good Bluetooth receiver, mixes it with the other channels. The Yamaha PA at Nancy's church has one built in as well..and I see lots of stuff like this: https://www.amazon.com/1Mii-Bluetooth-Receiver-Wireless-Surround/dp/B07KTK8YP3 or: https://www.amazon.com/Logitech-Bluetooth-Audio-Adapter-Streaming/dp/B00IQBSW28/ available that should feed your mixer board. Didn't find XLR... but 3.5mm to 1/4 phono is an easy adapter or cable. Phil (Audiophile nut) says these "kick ass" he has two: https://www.amazon.com/Esinkin-Wireless-receiver-Streaming-Speakers/dp/B07FZ3G7SC Hmm.. looks like the Logitech. Is your problem actually the Bluetooth out of the Linux laptop? The one of my Lenovo seems to be good, I stream to headphones and a Nyne Bass (big speaker) all the time with good sound quality) but the bluetooth on a nice I7 HP laptop sucketh. It halts/skips a lot.

=============================================================== From: Graeme Mellis ------------------------------------------------------ Not entirely sure how to enable Bluetooth, but I use a raspberry PI with an ALLO DAC plug on board. streaming software called Volumio. The system runs a simple web server app so you can drive it from any smart phone. Works really well even on my fancy High end gramophone. Graeme Mellis Sent from my iPhone

=============================================================== From: Dan Lyke ------------------------------------------------------ On Wed, Feb 26, 2020 at 9:35 AM Mike (meuon) Harrison wrote: Not to totally DJ out Chugalug, but... one of my requirements is that I need to be able to take a few channels (currently 2, be cool to have more) of voice mix, and run them into my hearing impaired accessibility transmitter. I have the basic Yamaha cheap mixer that everyone has for my voice stage, and then use the mixer in the powered speakers to add the music. It'd be kickass if I could get the dual-stage mixer+Bluetooth in one package. (Aside: There's an amp that square dance callers use from Hilton Audio that's 4 channels of voice, 2 channels of Aux, in two separate stages before the master mix. Which is amazing, except that it costs like $1600, and is completely optimized for voice frequencies so... well... it's great for the "puzzle solving" branch of square dancing, not so much for the dancing.) I don't know, and maybe I need to buy one of those $40 Logietch or similar receivers and find out. I get the impression that the Bluetooth manager on Xubuntu is kinda jankey, but given that I generally go with cheap-ass Bluetooth devices I don't really know who to blame. Dan

=============================================================== From: Unkmar ------------------------------------------------------ All my Bluetooth experience in Linux has been finicky, and barely functional most of the time. Full disclosure: My experience was at least 5 years ago. Certainly things are better now? Lucius L. Hilley III

=============================================================== From: Adam Jimerson ------------------------------------------------------ I have not had any issues with bluetooth devices, other than really cheap bluetooth mice. As Mike previously stated it does seem to depend on the bluetooth chip/card on your computer but my ThinkPad has been pretty solid.