4 ms·
"Airpods (when connected to iPhones or iPads) have very low latency, not detectable by humans. " "Linux bluetooth is hahahahaha sorry I forgot what I was going
by AshamedCaptain 7y ago
"Airpods (when connected to iPhones or iPads) have very low latency, not detectable by humans. " "Linux bluetooth is hahahahaha sorry I forgot what I was going to say."
Makes me seriously doubt any other latency measurement done by him.
The AirPods (even when connected to an iPhone) are said to have a latency of around 250ms [1] with the Pros having around half of that, 120ms. This makes both of them terrible as far as wireless headsets go. Even within Bluetooth headsets, the original AirPods are absolutely terrible, with the Pro now being in a much better position, but still nowhere near "low latency".
No surprises, since AAC is nowhere near a low-latency codec (this is not AAC-LD, it is plain old AAC-LC). The latency actually _improves_ when connected to BlueZ [my experience], likely because SBC is actually a much better codec when properly configured, something that few Bluetooth stacks do [2].
[1] https://9to5mac.com/2019/12/22/airpods-latency-test/ https://9to5mac.com/2019/12/22/airpods-latency-test/
[2] https://habr.com/en/post/456182/ https://habr.com/en/post/456182/ https://habr.com/en/post/456476/ https://habr.com/en/post/456476/
On another topic 150-200ms of latency is definitely human noticeable, even for me, that I don't have very good hearing nor reflexes. Still I would say most likely not noticeable in a meeting room environment, except for one-person videoconference.
- rectang 7y agoIn music applications, 10ms is considered noticeable, which should give us an approximate idea of the physiological bounds. Asserting that 150-250ms is "not detectable by humans" is way off.
- nitrogen 7y agoYou really start to notice even at ~250ms because people start talking over each other without realizing it during a conference call.