[DMDX] PIO / Sound latency slop Dear all,

We connected a dual channel oscilloscope to the sound card and PIO/12 to
run TimeDX's sound latency test, and are getting a range of approximately 6
msec of slop between the onset of a trigger and the offset of the sound.
Is this comparable to what others are getting, and is there any way to fix
this (barring building an "and" gate and a sound trigger)?  Do other ERP
and startle researchers accept a rang eof 6 msec of slop as acceptable?

thanks,

John




___________________________________________________________________________
John P. Kline, Ph.D.			Office Phone:	   850-644-9363	
Assistant Professor			Lab Phone:	   850-644-2049
Department of Psychology		Fax:       	   850-644-7739 
Florida State University		Mailto:kline@psy.fsu.edu
Tallahassee, FL  32306-1051		http://klinelab.psy.fsu.edu
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