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Announcing Bluetooth LE Audio

bluetooth.com

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Re: Announcing Bluetooth LE Audio

#3
I love the use case of being able to sync with local audio sources, whether in the gym, the airport, a cafe, or a retail store. I wonder if an "audio sink" can then turnaround and rebroadcast the input to a different sink, creating a sort of chain of local communication?

Re: Announcing Bluetooth LE Audio

#4
This literally addresses none of my complaints regarding Bluetooth Audio.

Latency needs to be on the order of single-digit milliseconds. LC3 can achieve around 20. One order of magnitude too high.

Audio needs to not sound like it's being played underwater.

And give me 100 feet of range.

Re: Announcing Bluetooth LE Audio

#7

This literally addresses none of my complaints regarding Bluetooth Audio. Latency needs to be on the order of single-digit milliseconds. LC3 can achieve around 20. One order of magnitude too high. Audio needs to not sound like it's being played underwater. And give me 100 feet of range.

For the 100 feet you need more power, better antennas, and diversity reception at the headphone end.

All of these could be implemented with the old Bluetooth standards but for various reasons, people haven't done it.

I think with BTLE it will be easier for systems like that to operate in an infrastructure mode. That is, really my laptop should stream audio over WiFi, then it goes over Ethernet to one or more hubs near me. That's the way you get to perceived 100% reliability.

Re: Announcing Bluetooth LE Audio

#8
The "Broadcast" mode is really an interesting concept - depending on the available range. There are a lot of potential uses for this technology beyond the basic. Of course "I can share my headphones with you" is great, in the day in age of watching moves on iPads in say a plane. However I think in a business setting the broadcasts could be used for all sorts of cool bits.

Remember the TV's in airports running news on mute? Now just tune in your broadcast bluetooth!

Museums and art galleries don't need to provide audio guide devices - just tune into the broadcast. Might even be able to do multiple broadcasts, one for each language, for each station.

Silent discos without the need for custom headphones.

Mass transit (trains, buses, subway stations, airport) could broadcast announcements, the same way they do now over speakers, so those who have a hard time hearing the announcements (or just have headphones in anyways) could actually hear them. This would be particularly great if you could listen to your own personal audio source (ex music) AND get the BT broadcasted announcements.

Re: Announcing Bluetooth LE Audio

#9

This literally addresses none of my complaints regarding Bluetooth Audio. Latency needs to be on the order of single-digit milliseconds. LC3 can achieve around 20. One order of magnitude too high. Audio needs to not sound like it's being played underwater. And give me 100 feet of range.

What is your use case for low latency? I understand that some want it for bluetooth headsets for videogames, where milliseconds mater - but beyond that?

Also what about AptX LL? Or LLAC?

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