Yamaha DTXpress/DTXplorer/DTXtreme

--- In DTXpress@yahoogroups.com, "Keith" <keith@k...> wrote:
> I am planning to design and build the "magic box"  but I seem to
> remember a post around the same time as this one that gave the 
maximum
> time between the rinm switch closing and the piezo triggering (or 
vice
> versa) to get the required sound from the rim.  I have searched the
> archives but cannot find it again.  Does anyone know the answer.  It
> is important because if the rim switch needs to be closed before the
> piezo triggers I will need to add a small delay in the "rim" piezo
> signal because I will not be able to close the rim switch signal
> before the piezo has been hit.

Within the limits of possible measurements on our scale, the two 
events are simultaneous, or as OGD put it, "The piezo and the rim 
switch have to be triggered within micro-seconds of each other or the 
rim will not trigger the sound assigned to it." OGD's experiment 
permitted no perceptible lag time.

Ed