Yamaha DTXpress/DTXplorer/DTXtreme

Hi Chris

I for one would love to try your modification on my mesh head 
RHP120SD.

Any Chance you could post the details?

Cheers

Warren
(New Zealand)



--- In DTXpress@yahoogroups.com, "feefer2" <feefer2@y...> wrote:
> Hi Ed and others,
> 
> Those MP3's were quick and dirty audio demos I made to show off 
the Virtual Rim Switch (VRS), a little electronic device I made that 
allows a mesh-head drum to function like a piezo/rim-switch two-zone 
pad.... 
> 
> We've all asked the question, "why can't I use a dual-piezo pad in 
any other input besides the dual-piezo snare input (or the dual-mono-
piezo inputs)?"   Or better yet: "why can I only trigger a single 
sound from the tom trigger inputs with my mesh head pads?"  
> 
> Of course, the answer is all of those other trigger inputs usually 
are designed for use with those piezo/rim-switch pads.  Problem is, 
no one makes a mesh-headed piezo/rim-switch pad.  All the mesh-head 
pads are mono- or dual-piezo, and the module trigger inputs often 
don't use those (more of a processing burden on the trigger input 
circuitry vs. using piezo/rim-switch pads).
> 
> However, the VRS allow you to use a mesh head pad as two-zone to 
output a signal that's identical to a typical piezo rim-switch pad; 
thus you can convert any mesh pad to work.
> 
> In that audio demo, ALL the sounds (except for hi-hat stuff, which 
I'm playing with my left foot only, no hi-hat pad attached) you are 
coming from ONE mono-piezo pad that has two VRS installed, thus 
making the pad function as a three zone, four-tone pad.  It's 
triggering two TD-10Ex module inputs....  I'm basically just playing 
a drum corps style funky groove, etc.
> 
> ####
> 
> BTW, that same circuit works with ANY module (including the 
DTXTreme IIS), so it would be possible to put three-zones on the 
surface of ANY mesh-headed pad and drive something like the DTXTreme 
IIS with mesh pads, instead of the stock rubber pads...  Heck, get 
those DTXTreme pads from Ed @ Drumbalaya, add a VRS or two, and 
you'll have one heck of a user interface.  ;)
> 
> (I'd have to measure the resistance value used for the 2nd rim 
zone of the newer 3-zone pads, but that should be a dead cinch; then 
put the equivalent resistance in series with the VRS and you're in 
business...)
> 
> ####
> 
> I did it more as a proof of concept, and to work out the design 
bugs, but have no plans to "producticize" it.  Been using the VRS on 
my own kit for awhile now...
> 
> I have the capability to produce these, but I do it more as a 
labor of love (for those fellow e-drummers into tinkering or those 
who want something unique)...
> 
> I don't think it has widespread commercial applications, as it's 
probably too technical for most: most drummers (rightfully) don't 
care about the difference between a piezo and a switch, so even 
explaining the concept of the VRS is fighting a major battle...  
> 
> The user would have to self-install with a screwdriver, and that 
plus knowing how to adjust the module trigger settings makes it a 
bit problematic (except for the more technically-inclined).
> 
> But hey, I have fun with this kind of stuff.  ;)
> 
> Chris
> 
> --- In DTXpress@yahoogroups.com, "emf" <liberatusvirus@y...> wrote:
> > Hey Chris,
> >
> > I just opened up your briefcase and listened to a couple of 
mp3s. Is
> > that you playing?  Nice sticking.  Go, Chris, Go.
> >
> > Ed