On Fri, Sep 03, 2004 at 10:32:40 +0200, David Olofson wrote: > > 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.
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 *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
