Xref: utzoo comp.sys.mac.hypercard:1326 comp.sys.mac.programmer:3432 Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!apple!dan From: dan@Apple.COM (Dan Allen) Newsgroups: comp.sys.mac.hypercard,comp.sys.mac.programmer Subject: Re: Reaction Time stacks : can I do this? Message-ID: <21792@apple.Apple.COM> Date: 6 Dec 88 23:28:26 GMT References: <6012@mva.cs.liv.ac.uk> Organization: Apple Computer Inc, Cupertino, CA Lines: 19 In article <6012@mva.cs.liv.ac.uk> phil@mva.cs.liv.ac.uk writes: >1) is it possible to write an XCMD/XFCN to await a keypress and to time >more accurately than 1/60th of a second, and return this info to a script. Yes, an XCMD can measure event timing to finer intervals. You would need to write some tricky code to use one of the VIA internal millisecond timers. >2) One of the reaction timing stacks is supposed to play a sound on a >background of white noise. Can an XCMD/XFCN play noise + a simple tone and >do (1) above? This may be possible, but I am not sure. Sound and the VIA timers are somewhat esoteric stuff that unfortunately is not documented as well as it could be: lots of munging is required to get things working right. At least that's what I would have to do... Dan Allen Apple