Thanks for the info Richard.
I’m surprised winsound only gives you latency @11ms - I would have expected better. Are you triggering the sound after the win.flip? That might improve your timings. Also, this post might
post
be of interest to you (but it’s oldish - W7, though looks relevant)
THanks for prompting me to properly investigate my sound latency (from Matlab) using an external USB linked Soundblaster unit. I will try it with a dual channel oscilloscope and compare onset against TTL trigger form the parallel port.
I’d be interested to hear how you get on if you do find time to investiagte this further.
Cheers, John