3 ms·

really interested in latency here

xnyan 7y ago
It's not mentioned, seeing as this was a press release if it was better than the current standard then one would assume they would have mentioned it. Assuming this is the case, 200-500ms in real world conditions. With super duper non-standard proprietary tech on both ends from vendors like Qualcomm it can be in theory be as as low as 32ms, but in practice I don't see those numbers. New airpods with apple's proprietary tech get mid 100s ms of latency and that is considered pretty good for BT headphones in the real world. BT5 does make things better if for no other reason than less re-transmits vs 4 in the same conditions.
- Kirby64 7y ago
  Yeah, according to some news articles, I see Airpods Pro have a latency of ~144ms end-to-end. I haven't noticed that latency when I watch videos on my phone... On the other hand, I definitely noticed the latency with a much cheaper pair of true wireless earbuds. They probably had the ~500ms latency you mention. I wonder how much the real-world latency is. If the codec itself is only adding 20ms, what about the rest of the system?
  - xnyan 7y ago
    Definitely not an expert in BT but I've worked with it on the edges. Bluetooth is the biggest standard I've ever worked with by far in just terms of sheer page count, to say nothing of its complexity. That's just the core spec, not any of the other pieces you need too to make it do useful work. I would not believe the 20ms number without real world performance benchmarks tested in operational conditions for my specific product but if that is what is actually happening, I suspect something with the implementation on the specific platform is to blame - again, the standard is ridiculously complex and hard to implement. It's notoriously bad on android (by bad I mean a dumpster fire) and while windows is actually been making progress, depending on the SoC of the physical adapter your experience can range from great to near android level dumpster fire.
audunw 7y ago
I don’t know about the specific latency, but I know it’s significantly improved over classic Bluetooth.
DaniFong 7y ago
do i have to invent the system for ~1 ms latency? serious question. needed for music. anyone trying to solve this yet?

It's not mentioned, seeing as this was a press release if it was better than the current standard then one would assume they would have mentioned it. Assuming this is the case, 200-500ms in real world conditions. With super duper non-standard proprietary tech on both ends from vendors like Qualcomm it can be in theory be as as low as 32ms, but in practice I don't see those numbers. New airpods with apple's proprietary tech get mid 100s ms of latency and that is considered pretty good for BT headphones in the real world. BT5 does make things better if for no other reason than less re-transmits vs 4 in the same conditions.

Kirby64 7y ago
Yeah, according to some news articles, I see Airpods Pro have a latency of ~144ms end-to-end. I haven't noticed that latency when I watch videos on my phone... On the other hand, I definitely noticed the latency with a much cheaper pair of true wireless earbuds. They probably had the ~500ms latency you mention. I wonder how much the real-world latency is. If the codec itself is only adding 20ms, what about the rest of the system?
- xnyan 7y ago
  Definitely not an expert in BT but I've worked with it on the edges. Bluetooth is the biggest standard I've ever worked with by far in just terms of sheer page count, to say nothing of its complexity. That's just the core spec, not any of the other pieces you need too to make it do useful work. I would not believe the 20ms number without real world performance benchmarks tested in operational conditions for my specific product but if that is what is actually happening, I suspect something with the implementation on the specific platform is to blame - again, the standard is ridiculously complex and hard to implement. It's notoriously bad on android (by bad I mean a dumpster fire) and while windows is actually been making progress, depending on the SoC of the physical adapter your experience can range from great to near android level dumpster fire.

audunw 7y ago

I don’t know about the specific latency, but I know it’s significantly improved over classic Bluetooth.

DaniFong 7y ago

do i have to invent the system for ~1 ms latency? serious question. needed for music. anyone trying to solve this yet?