3 Sep
2004
3 Sep
'04
8:32 p.m.
On Fri, Sep 03, 2004 at 10:32:40 +0200, David Olofson wrote:
The main advnatage of bluetooth mice to me would be that I wouldn't need a
USB dongle sticking out of my laptop, I could use the builtin bluetooth
stuff. Not that I use mice very often :)
i never was
able to get below a latency nelow 15-20 ms and spikes
here and there (if you want run jitter-free i guess you have a
latency of 30-50ms or more). i don't know if this is only my setup
or if this is normal with bluetooth. for real-time musical
controlers it's way to slow. but i guess there are still enough
applications were latency doesn't matter.
I've noticed a lot of complaining about bluetooth wireless mice not
being seriously usable for FPS games and the like. I *think* bluetooth should be able to handle the
bandwith requirements
of a mouse (125 Hz frame rate for the MX models, IIRC), but 15-20 ms
latency spikes would be an issue that cannot be fully compensated for
regardless of bandwidth. Jitter or delay (buffering to eliminate
jitter) would cause problems with real time controllers, such as mice
or musical controllers.
Bluetooth can do realtime ADPCM audio, so a mouse should be no problem.
Maybe HID controllers use a different bit of the protocol?
- Steve