[superbonham]

Hi there,

I would like to build a 3-zone snare (yamaha style piezo/switch/switch for DTXpress IV) from a dual acoustic trigger (piezo/piezo) on a mesh head. As I have no idea about electronic circuits I would greatly appreciate some help on this.

I would like to get the following behaviour using a modified KRC:
– head piezo trigger -> velocity
– rim piezo switch -> “switch 1” (simple one) for cross sticks
– rim AND head piezo switch -> “switch 2” (10k resistance) for rim shots

To preserve the snare head only sound, it will be crucial that the head piezo won’t “switch” alone (i.e. without the rim piezo also switching) – I hope a sufficiently high resistance with the head piezo switch will generate the desired behaviour within the DTXpress?!

Can this be achieved by using two different resistors with the two switches (or even two potentiometers to adjust the behaviour)? Will changing the polarity of one of the piezos be of any help (just guessing)? Is there any other (not too complicated) circuit that provides the specified behaviour?

As I said I would be glad about any hints,

Thanks

Ben

P.S.: I hope I managed to illustrate the problem correctly (English is not my native language so please bare with me).

[Author]

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