Meanwhile I just transferred via Bluetooth some old high-school photos from an 2003 NEC flip-phone with Bluetooth v1.1 onto my 2021 OnePlus Android phone with Bluetooth v5.1 seamlessly.
And as a test, both phones managed to connect flawlessly to my shitty 2014 Fiat entertainment system and to my dad's ancient 2005 Audi entertainment system. Even my brand spanking new Sony noise cancelling bluetooth headphones from 2021 worked with that NEC flip phone from 2003. The backwards- and cross- compatibility of bluetooth is nothing but impressive.
The only bluetooth device that gave me issues were some M-Pow headphones off Amazon that I threw away after a couple of weeks due to how terrible they were and a work colleague constantly had issues with his LG Android phone because LG apparently fudged the Bluetooth firmware implementation on that phone.
I mean, what is the logic behind this. Why would I go into nagging mode and tell my user every 30s that "I am ready to connect" just because the BT device disconnected? How about you do nothing, wait 5mins, and if no other device connects you go to standby?
[0]: https://brokkr.net/2015/09/26/bluetooth-dual-booting-sharing...
It’s pretty 50 50 for me but the physical minimalism and not having the wire/socket wear out swung it in the end.
Although I admit, I own a FiiO BTR 5 that has BT and I can plug in my in-ear wired headphones - so I occasionally have a need for wireless listening. The battery of the FiiO is 13-15h however, and I also use it for other purposes (wired external headphone preamp). Additionally, in case the battery runs flat, I can always just insert the headphones directly into the device directly as a fallback.
However the problem the original poster has still exists I think, when you use it across multiple devices it's annoying and I get that sound of it disconnecting and reconnecting to other devices while I am listening, so i have to find that device and turn the bluetooth off.
Case in point this afternoon when I went to listen. Connect bluetooth on my iPad, connect the headphones, iPad shows that headphones are connected, listen to music, nothing, no sound... why? Ahh, have to go on my mac, disconnect them from my mac and then boom sound starts.
It's just annoying with multiple devices and we live in a very multi-device world. I should just be able to press the device I want as a sound source and boom. It's silly to still be having this issue.
With a speed of 200 kByte, barely faster than IrDA?
Seriously, the data rate of Bluetooth file transfer is atrocious.
Honestly I have so much trouble with Wi-Fi as well, it randomly won't see a network, it won't roam to 5 GHz leaving me on slow 2.4 GHz (turning on "band steering" on the router makes it even worse, it just drops completely), you check the forums, people swear that this new OS update made the range worse somehow.
Even Apple's AirDrop on which they own the whole stack is very unreliable if it will see the other device.
Digital wireless just seems like a very very difficult field.
The only digital wireless communication tech that seems rock-solid is the 3GPP stack (GSM/UMTS/LTE/5G). It just always works, flawlessly, 24/7. Even with the random crap Chinese "iFOE" Mediatek knockoff I bought once.
Thanks for the tip.
Indeed It is. And not much appreciation about it anywhere either.
>The only digital wireless communication tech that seems rock-solid is the 3GPP stack (GSM/UMTS/LTE/5G).
And that is why they are expensive. Again no one appreciate the work that was done on 3GPP, nor are they willing to pay much for it. Everyone likes to shit post on 3G / 4G / 5G without actually spending any time to understand the insane difficulty of wireless. No one realise we got 10,000x capacity improvement in the last 20 years on mobile network. All while siding with Apple and suggest they should only pay 30cents on patent to Qualcomm or Ericsson.
Ideally, you would have governments spend tax money on universities and national standardization bodies to do the R&D and publication of open standards, and then both companies and private efforts can openly use these standards to develop products against, with clearly defined interfaces and interoperability expectations.
Anyway even fixing that and having only one device connected I feel that the Bose Quietcomfort would disconnect too easily or were too slow to reconnect after reopening a MacBook. This is noy a critique of Bose Quietcomfort, in fact all other headphones and soundboxes with bluetooth I tried were MUCH WORSE.
I do think it would help a lot to have 5GHz Bluetooth.
I ended up getting HyperX Cloud Mix (gave up on ANC). It has a built-in mic and a nice detachable boom mic. Both mics work in wired and bluetooth mode. I'll hang on to these until bluetooth v11 or whatever actually upgrades the one feature everyone needs: good audio quality in both directions without quirks.
On a side note, Windows 11 has recently added AAC support (used by Apple) and now makes only one bluetooth device for headphones (used to make multiple confusing profiles). So it is getting better.
In my experience QC35 works well on Linux/Windows PCs and laptops, iPhone/iPad and on Android devices.
Bluetooth has failed in some device combinations for me, though. Seems like luck is required.
With my QuietComfort 35 sometimes the A2DP profile is not negotiated and it falls back to HSP/HFP which sounds like a landline in the 90s. Then you have to disconnect/reconnect it and hope it works this time.
Another pair of cheap sports headphones I own just like to pair with everything that is in range if no other device is connected.
And lastly my Sony WF-1000XM3 just never automatically connects to my phone. I always have to manually go into the Bluetooth menu to connect them.
I think there should be some type of conformity certification, not for the implementation of the Bluetooth protocol itself but for how a device has to act in certain scenarios.
This happens to my AirPods2. Very annoying, like a $5 pair of headphones.
They should have a rigid spec and a publicly available test kit, and a certification process for spec compliance.
They do. One can only put the Bluetooth logo if the product passes compliance tests. For the pairing, Bluetooth allows different modes. Predictably, the least secure one became the most popular.
Also, using the audio cable and charging cable at the same time results in annoying digital noise in the headphones. It may be a ground loop issue that can be broken by charging and listening with different relative ground sources (gnd of USB must be different than the audio gnd).
The QC25 uses a user-replaceable AA battery. And they're still going strong.
Someday I may even buy one of the Bluetooth adapters for them: https://www.amazon.com/dp/B01MTQGY69
I've actually worked on a bluetooth stack, and even I have no idea why it's so unreliable.
I never had issues with my BT speaker.
I switch it on, it connects, and the PC automatically switches all output to it.
> Announced in January 2020, LE Audio will allow the protocol to carry sound and add features such as one set of headphones connecting to multiple audio sources or multiple headphones connecting to one source