[DMDX] Re: PIO / Sound latency slop At 09:16 AM 11/7/00 -0700, you wrote: >At 09:58 PM 11/6/00 -0500, you wrote: >>Jonathan, >> >>This is good information, thanks.  Since the video in this particular study >>is not as time-critical as the sound, this might be an option.  It may be >>more time and cost effective than building speciality equipment, especially >>if we can decrease the jitter to acceptable levels. > >   My bet is buying a new audio card (one with hardware buffers on it) is  >going to solve all your problems.   Hell, even with the SB16 in the testbed  >I see variability of less then 1.5ms using the , playing a beep  >and looping the output of the sound card to the input. The problem we have is between the latency of the sound and the latency of the PIO-12 output.  I will double check this, but believe that the sound card is a recent creative labs PCI card.  I am also going to go back through the system and make sure there isn't any big stupid code running that I am unaware of. again, thanks! John _____________________________________________________________________________ John P. Kline, Ph.D.			Phone:	   850-644-9363	 Assistant Professor			Fax:       850-644-7739  Department of Psychology		 Florida State University		Mailto:kline@psy.fsu.edu Tallahassee, FL  32306-1051		http://klinelab.psy.fsu.edu ______________________________________________________________________________