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Bluetooth remains an 'unusually painful' technology after two decades

cnn.com

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Re: Bluetooth remains an 'unusually painful' technology after two decades

#81

Post by kuschku »

out_of_protocol wrote: post #28
LinAGKar wrote: post #7

Earlier quoted context omitted.

I hope LE audio will fix that

By the way, what LE stands for? Legendary Edition?

Originally, Low Energy. Bluetooth LE removes all the different communication modes and introduces a single, packet network based approach for everything.

You may remember the switch from bluetooth connections being something you had to manually enable every time you wanted it, to devices just being connected all the time (without causing your battery to drop). That’s what LE enabled.

The switch to the single packet network approach obviously also simplified everything else you might want to transmit.

The audio specs are still from the pre-LE era with different modes for everything you might do (modem, fax, headset, headphones, HID, etc), and LE Audio introduces a new and clean way for that.

Re: Bluetooth remains an 'unusually painful' technology after two decades

#83

Post by grnmamba »

bigbillheck wrote: post #78
grnmamba wrote: post #72

Earlier quoted context omitted.

Everyone except Apple was already on USB. And even in the pre-smartphone days, phone chargers always worked reliably. Phone charging is and was the complete opposite of what bluetooth is today.

They most certainly were not: https://www.engadget.com/2009-06-29-nokia-apple-rim-and-othe...

Ok, so since 2009 everyone except Apple was on USB.

Re: Bluetooth remains an 'unusually painful' technology after two decades

#84

Post by zwirbl »

izacus wrote: post #41
LinAGKar wrote: post #7

Earlier quoted context omitted.

I hope LE audio will fix that

I tried really hard but I couldn't find any new spec for two way audio. It seems that the specification authority is completely ignoring that problem.

I don't think you looked all that hard, as this is central in the book "Introducing Bluetooth LE Audio" available for free here https://www.bluetooth.com/bluetooth-resources/le-audio-book/...

LE Audio is built around a channel concept, where a channel is unidirectional and a connection can have multiple, e.g. listening on 2 stereo channels and when a call arrives enabling 2 mic channels in the other direction for stereo microphones

Don't go around throwing shade at the spec authority if you haven't read the spec

Re: Bluetooth remains an 'unusually painful' technology after two decades

#85

Post by zwirbl »

kuschku wrote: post #81
out_of_protocol wrote: post #28

Earlier quoted context omitted.

By the way, what LE stands for? Legendary Edition?

Originally, Low Energy. Bluetooth LE removes all the different communication modes and introduces a single, packet network based approach for everything. You may remember the switch from bluetooth connections being something you had to manually enable every time you wanted it, to devices just being connected all the time (without causing your battery to drop). That’s what LE enabled. The switch to the single packet n…

To expand on that, there is a pretty accessible free book covering LE Audio available here https://www.bluetooth.com/bluetooth-resources/le-audio-book/...

Re: Bluetooth remains an 'unusually painful' technology after two decades

#86

Post by numpad0 »

Aeolun wrote: post #70
gfrff wrote: post #35

Earlier quoted context omitted.

My $400 Bose headphones have worse range than my cheap MPow headphones. Perhaps whatever great thought Bose puts in doesn't result in great products....

Or the improved sound quality comes at a cost?

Better connection through research would also be expected, since wireless headphones without connection can't sound great /s

Re: Bluetooth remains an 'unusually painful' technology after two decades

#87

Post by iso1631 »

yieldcrv wrote: post #47

My experience has been pretty good on cars after 2015 when using iphone Cars Speakers And other apple products Unusually awesome

My carplay experience when I plug my phone in via USB is great

When I try to use bluetooth, forget it, works about half the time, massive pain having to pair with each new car, etc

Re: Bluetooth remains an 'unusually painful' technology after two decades

#88

Post by gc22browsing »

The problem at the radio frequency level is simply that not only is the 2.4GHz ISM band crowded by microwave ovens, WiFi and lots of other devices, but that one end of a BT device is typically battery powered and transmitting at a tiny fraction of the power of the interfering devices. In a typical office or home the moment you turn on the microwave or WiFi device you are effectively jamming the BT signal. Frequency hopping can hop it all likes and try to pick the least worse band out of all even more over-powering ones.

Re: Bluetooth remains an 'unusually painful' technology after two decades

#90

Post by _zfxr »

My only real issue with bluetooth these days is that I cant disable certain MIDI CC events.

The same midi blob that sends vol +/- from my cars volume encoder, is used by applications to hijack phone volume to push notifications.

But it always resets to -inf once and there is no way for me to disable or modify midi cc behaviours globally or on a per application basis.

Someone give me discrete midi cc control via a third party app before i drive off a bridge. Its maddening.

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