←back to thread

Bluetooth 6.2 – more responsive, improves security, USB comms, and testing

(www.cnx-software.com)
219 points zdw | 6 comments | 06 Nov 25 00:09 UTC | HN request time: 0s | source | bottom
Show context
hsbauauvhabzb ◴[12 Nov 25 05:48 UTC] No.45896750[source]▶
What’s the status of audio on modern Bluetooth? The only decent mic+audio configuration I’ve ever experienced is AirPods on apple devices, anything else sounds terrible when the microphone is activated.
replies(9): >>45896784 #>>45896849 #>>45896886 #>>45896936 #>>45896969 #>>45897245 #>>45898036 #>>45899193 #>>45904524 #
1. whatevaa ◴[12 Nov 25 07:19 UTC] No.45897245[source]▶
Bluetooth doesn't have the bandwith to support anything better. Airpods are as far as you can push it with complete vertical stack control. The magic is in codecs and dynamic switching of them based on whether you are speaking or not.
replies(4): >>45897329 #>>45897525 #>>45897559 #>>45899148 #
2. chekibreki ◴[12 Nov 25 07:36 UTC] No.45897329[source]▶
Is it really that hard to increase the bandwidth in 2025 to get mic quality that doesn’t sound awful? Opus can be really efficient at low bitrates AFAIK.
3. Gigachad ◴[12 Nov 25 08:06 UTC] No.45897525[source]▶
How does wifi support multiple gigabit now while Bluetooth can’t support a microphone that isn’t horrendous?
replies(1): >>45897876 #
4. Philip-J-Fry ◴[12 Nov 25 08:11 UTC] No.45897559[source]▶
But we have Bluetooth doing lossless audio. If we can do lossless or 700kbps+ audio then we can spare a bit of that bandwidth for the microphone.
5. systemz ◴[12 Nov 25 08:53 UTC] No.45897876[source]▶
In short - BL uses much less energy than WiFi. It's harder to have speed and be battery friendly at same time.
6. u8080 ◴[12 Nov 25 12:05 UTC] No.45899148[source]▶
No, bluetooth has enough bandwidth for 990kbps LDAC, so it should be possible to do 128kbps stereo + 64kbps OPUS mono mic.