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Yamaha DTXpress/DTXplorer/DTXtreme

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It rather quiet around here ...

It rather quiet around here ...

2007-03-07 by Keith

I have finally got round to creating a web site for the DTXpander
alias the "Magic Box", now called the DKDI-21.  I have put the link
under the links section.  Any comments are appreciated.

http://www.dtxpander.co.uk/

It is still open for anyone to build one themselves if they want to
(for "personal use") - the latest circuit will always be on the site.

Keith.

Re: It rather quiet around here ...

2007-03-07 by emf

--- In DTXpress@yahoogroups.com, "Keith" <keith@...> wrote:
>
> I have finally got round to creating a web site for the DTXpander
> alias the "Magic Box", now called the DKDI-21.  I have put the link
> under the links section.  Any comments are appreciated.
> 
> http://www.dtxpander.co.uk/
> 
> It is still open for anyone to build one themselves if they want to
> (for "personal use") - the latest circuit will always be on the site.
> 
> Keith.
>
Nice job, Keith.

R***nd question

2007-03-08 by Keith

--- In DTXpress@yahoogroups.com, "emf" <liberatusvirus@...> wrote:
> Nice job, Keith.
>

Thanks.  A slightly off topic question you may be able to help me
with.  I am trying to help someone who has built a 3 zone expander
(using the circuit posted here) but is using it on the TD8.  The
second zone works, but not the third.  I know Yamaha just adds a 10k
resistor for the third zone, I guess Roland do something different -
hopefully just a different resistor value.  Do you have a 3 zone
Roland pad on which you could measure the resistance of the second &
third zones?

Keith.

RE: [DTXpress] R***nd question

2007-03-08 by Damon, Rob

Keith,

 

Where as Yamaha uses just one stereo input for it's three zone pads,
Roland uses two input jacks to accomplish the same thing. Thus I believe
the Peizo and the rim switch goes to one input and the Peizo and bell
switch goes to the second input. So the 3 zone expander wouldn't work on
the Roland modules. 

 

OGD

 

________________________________
Show quoted textHide quoted text
From: DTXpress@yahoogroups.com [mailto:DTXpress@yahoogroups.com] On
Behalf Of Keith
Sent: Thursday, March 08, 2007 4:05 AM
To: DTXpress@yahoogroups.com
Subject: [DTXpress] R***nd question

 

--- In DTXpress@yahoogroups.com <mailto:DTXpress%40yahoogroups.com> ,
"emf" <liberatusvirus@...> wrote:
> Nice job, Keith.
>

Thanks. A slightly off topic question you may be able to help me
with. I am trying to help someone who has built a 3 zone expander
(using the circuit posted here) but is using it on the TD8. The
second zone works, but not the third. I know Yamaha just adds a 10k
resistor for the third zone, I guess Roland do something different -
hopefully just a different resistor value. Do you have a 3 zone
Roland pad on which you could measure the resistance of the second &
third zones?





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Re: Rol*nd question

2007-03-08 by Keith

--- In DTXpress@yahoogroups.com, "Damon, Rob" <rdamon@...> wrote:

> Where as Yamaha uses just one stereo input for it's three zone pads,
> Roland uses two input jacks to accomplish the same thing. Thus I believe
> the Peizo and the rim switch goes to one input and the Peizo and bell
> switch goes to the second input. So the 3 zone expander wouldn't work on
> the Roland modules. 

Thanks, I will pass that on.

Keith.

Re: R*land question

2007-03-08 by Keith

--- In DTXpress@yahoogroups.com, "Damon, Rob" <rdamon@...> wrote:
>Where as Yamaha uses just one stereo input for it's three zone pads,
> Roland uses two input jacks to accomplish the same thing. Thus I believe
> the Peizo and the rim switch goes to one input and the Peizo and bell
> switch goes to the second input. So the 3 zone expander wouldn't work on
> the Roland modules. 

One query about that connection - when you hit the bell, what stops
you getting the main cymbal sound on the other input, or conversely,
when you hit the rim, what stops you getting a sound from the other
input?  Is there some configuration on the module which can inhibit
one sound if there is a trigger pulse on an adjacent input (a bit like
and excessive specific trigger rejection)?

Keith.

Re: R*land question

2007-03-08 by Keith

Yet more information (as if anyone wants it on the Yamaha Group!). 
Reading the TD-8 manual, it seems to support 3 zones using a single
input on the snare.  However, no mention of 3 zone cymbals.

The TD-12 seems to have a specific input (10) linked to the ride
cymbal, marked "edge" so I guess there is something about the way that
input is used which prevents the mutliple sounds I was worried about.

Keith.

RE: [DTXpress] Re: R*land question

2007-03-08 by Damon, Rob

On the TD20 I have there are two "Paired" inputs for the CY15R (Rolands
3-zone cymbal). I think when you tell the module that you have a CY15R
plugged into these two inputs, the module handles these inputs as
"linked" inputs and based on the what trigger zone you hit, it
determines what sound to play. I just don't know if it just uses the
peizo input from the one input jack or if from both, it would be easy to
find out. Just unplug one of the cables at a time and see what happens.

 

That brings up an interesting point that I will try when I get home
tonight. With the Yamaha, you can get just one (bell) or the other (rim)
to trigger at a time, not both. I am now wondering if with two inputs on
the Roland module, you can hit both the rim and the bell at the same
time and get both to sound (not that there would ever be a reason to do
it.)  I am also wondering if the bell zone is "chokable" like the rim.
Never thought of trying it before.

 

Rob

 

 

 

________________________________
Show quoted textHide quoted text
From: DTXpress@yahoogroups.com [mailto:DTXpress@yahoogroups.com] On
Behalf Of Keith
Sent: Thursday, March 08, 2007 9:41 AM
To: DTXpress@yahoogroups.com
Subject: [DTXpress] Re: R*land question

 

--- In DTXpress@yahoogroups.com <mailto:DTXpress%40yahoogroups.com> ,
"Damon, Rob" <rdamon@...> wrote:
>Where as Yamaha uses just one stereo input for it's three zone pads,
> Roland uses two input jacks to accomplish the same thing. Thus I
believe
> the Peizo and the rim switch goes to one input and the Peizo and bell
> switch goes to the second input. So the 3 zone expander wouldn't work
on
> the Roland modules. 

One query about that connection - when you hit the bell, what stops
you getting the main cymbal sound on the other input, or conversely,
when you hit the rim, what stops you getting a sound from the other
input? Is there some configuration on the module which can inhibit
one sound if there is a trigger pulse on an adjacent input (a bit like
and excessive specific trigger rejection)?





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RE: [DTXpress] Re: R*land question

2007-03-08 by Damon, Rob

Keith, 

 

I think the three zone snare is a miss-leading. Where the Yamaha pads
have two separate rim ribbon switches (i.e. TP-65/100/120,PCY130S/150S),
the Roland pads do not. The Roland pads have a shell peizo for the rim
and a cone peizo for the Mesh head. I assume that when you lay the stick
across both rims (and you cannot touch the mesh head when you do this)
and you strike the rim, the module "sees" a certain wave form and plays
the cross stick. If you strike both the rim/pad it "sees" a different
wave form. By looking at these wave forms, you get the positional
sensing.

 

Rob

 

________________________________
Show quoted textHide quoted text
From: DTXpress@yahoogroups.com [mailto:DTXpress@yahoogroups.com] On
Behalf Of Keith
Sent: Thursday, March 08, 2007 9:58 AM
To: DTXpress@yahoogroups.com
Subject: [DTXpress] Re: R*land question

 

Yet more information (as if anyone wants it on the Yamaha Group!). 
Reading the TD-8 manual, it seems to support 3 zones using a single
input on the snare. However, no mention of 3 zone cymbals.

The TD-12 seems to have a specific input (10) linked to the ride
cymbal, marked "edge" so I guess there is something about the way that
input is used which prevents the mutliple sounds I was worried about.

Keith.

 
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Re: R*land question

2007-03-08 by Keith

--- In DTXpress@yahoogroups.com, "Damon, Rob" <rdamon@...> wrote:
> I think the three zone snare is a miss-leading. Where the Yamaha pads
> have two separate rim ribbon switches (i.e. TP-65/100/120,PCY130S/150S),
> the Roland pads do not. 

Rob,

Thanks, I think it is slowly becoming clearer.  I noticed that the
Roland manual is very specific about how you make the rim shot and
cross stick sounds whereas the Yamaha is very tolerant - you don't
have to hit the pad to get the rim shot.

Keith.

RE: [DTXpress] Re: R*land question

2007-03-08 by Damon, Rob

Keith,

 

The Roland is a lot more finicky about cross-sticking than the Yammies. 

If you have big hands/fingers it can be a problem getting the
cross-stick to work. You have to keep your fingers on the side/top of
the stick. If you touch the mesh head with your fingers, you end up
getting more of a rim shot sound and not the cross-stick sound.

 

Rob

 

________________________________
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From: DTXpress@yahoogroups.com [mailto:DTXpress@yahoogroups.com] On
Behalf Of Keith
Sent: Thursday, March 08, 2007 10:24 AM
To: DTXpress@yahoogroups.com
Subject: [DTXpress] Re: R*land question

 

Thanks, I think it is slowly becoming clearer. I noticed that the
Roland manual is very specific about how you make the rim shot and
cross stick sounds whereas the Yamaha is very tolerant - you don't
have to hit the pad to get the rim shot.





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