3 ms·

I spent the last year and a half living about as far from my home city as possible (Melbourne > Edinburgh) (Currently in quarantine) and the latency of phone ca

I spent the last year and a half living about as far from my home city as possible (Melbourne > Edinburgh) (Currently in quarantine) and the latency of phone calls drives me nuts. The huge gaps between people speaking, and the complete change in conversation flow since you have to speak in huge continuous paragraphs. The constant "go ahead" , "no you go" etc... Ugh. But I agree with you... nobody seems to care except me.

robmsmt 6y ago
I also agree. Sometimes I speak to work colleagues who are on BT headsets and it must add what feels like 100ms to the call. I can sometimes hear the end of my sentence as I speak. Infuriating.
- Miraste 6y ago
  I don't understand how Bluetooth has made it this far for phone calls. It has two modes: unintelligible quality and bad latency, or decent quality and ludicrous latency. The entire standard is an advertisement for Airpods.
  - viraptor 6y ago
    And that's on top of a ridiculously complex stack of protocols. I don't understand it either.
    - kozak 6y ago
      Is LE Audio going to change this to better?
  - sodality2 6y ago
    What platform are you on? iOS/android/windows/macos/linux?
    - Miraste 6y ago
      Mostly Windows and Android. Although both audio pipelines aren't great I don't think it's a platform problem--I've never seen a measurement of even 100ms lag with Bluetooth (excluding aptX-LL) and it's usually in the 300ms range. It also still only does two-way audio at 8kHz, which is unbelievable to me in 2021.
qayxc 6y ago
> Melbourne > Edinburgh Well, there's part of your problem right there. No need to even mention Bluetooth or device-related delays. South Australia to North Britain is the better part of literally half way across the globe. It's either 64000 km at lightspeed (via satellite) or roughly 35000 km via optic fibre cable at 60% lightspeed (e.g. equivalent to ~60000km at lightspeed). That's 200 ms one way latency just from the distance alone (best case scenario, no less), so 400 ms of latency just from distance alone. Even with something like Starlink we'd still be talking about at least 100 ms latency. The whole latency from wireless protocols and codecs are just the cherry on top.

robmsmt 6y ago

I also agree. Sometimes I speak to work colleagues who are on BT headsets and it must add what feels like 100ms to the call. I can sometimes hear the end of my sentence as I speak. Infuriating.

Miraste 6y ago
I don't understand how Bluetooth has made it this far for phone calls. It has two modes: unintelligible quality and bad latency, or decent quality and ludicrous latency. The entire standard is an advertisement for Airpods.
- viraptor 6y ago
  And that's on top of a ridiculously complex stack of protocols. I don't understand it either.
  - kozak 6y ago
    Is LE Audio going to change this to better?
- sodality2 6y ago
  What platform are you on? iOS/android/windows/macos/linux?
  - Miraste 6y ago
    Mostly Windows and Android. Although both audio pipelines aren't great I don't think it's a platform problem--I've never seen a measurement of even 100ms lag with Bluetooth (excluding aptX-LL) and it's usually in the 300ms range. It also still only does two-way audio at 8kHz, which is unbelievable to me in 2021.

qayxc 6y ago

> Melbourne > Edinburgh Well, there's part of your problem right there. No need to even mention Bluetooth or device-related delays. South Australia to North Britain is the better part of literally half way across the globe. It's either 64000 km at lightspeed (via satellite) or roughly 35000 km via optic fibre cable at 60% lightspeed (e.g. equivalent to ~60000km at lightspeed). That's 200 ms one way latency just from the distance alone (best case scenario, no less), so 400 ms of latency just from distance alone. Even with something like Starlink we'd still be talking about at least 100 ms latency. The whole latency from wireless protocols and codecs are just the cherry on top.