Using the Combination Action

Find out what all those theatre organ console button do
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engrssc
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Post by engrssc » Thu Dec 15, 2005 9:04 am

I may have missed something in my overview search, but I'm still looking for information on how to program the combination action memory (lower right hand corner). Also can these memory "locations" be acceassed via any (computer) keyboard shortcuts?
Another question - as to using Reality. From their web site, I'm reading that Reality runs on Windows 98 vs Miditizer which runs on XP or Win 98. Is Win98 the OS of choice here for Miditizer if I want to use Reality? Any difference with Miditizer running on Win98. Basically I'm trying to use max polyphony which apparantly Reality would provide especially when the 512 version is released.

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Post by Jim Henry » Thu Dec 15, 2005 11:36 am

Access to the 5 special pistons from a computer keyboard is as follows:

CAN is Backspace or Delete
RES is Enter
SET is \
MEM is =
MAP is ]

CAN is General Cancel and it clears all the stops.

RES is restore and it will restore the last hand set combination after you set a registration with a piston.

SET is the key for setting a combination.  Press SET and then one
of the combination pistons and the current registration will be SET on
that piston.  (Depending on the MAP, described below.)

MEM selects the memory level.  The ten pistons of either the Solo
or Acc are treated as digits from 0 to 9, left to right.  Press
MEM followed by two pistons to select a memory level.  For
example, MEM, Solo fff, Solo mf (=, F5, F2) selects memory level 41.

MAP puts the combination action into MAP mode.  Whether or not a
stop is affected by a combination is controlled by the MAP.  There
is a MAP for every piston on every memory level, 2300 MAPs in
all.  If you press a piston while in MAP mode you will see the
stops change based on the MAP rather than the combination. 

Every stop that is on will be changed by a combination set on that
piston.  You set MAPs just like combinations when you are in MAP
mode.  Look at the default MAPs for memory level 00 to see how the
divisional pistons were set up.  Then look at the maps in memory
level 01 to see general piston MAPs.

If a MAP is completely clear, no stops set, then setting a stop in the
combination makes the piston a reversible for the set stop(s). 
The piston will change the stop every time the piston is pushed.

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Post by Jim Henry » Thu Dec 15, 2005 11:41 am

WinXP is the OS of choice for the Miditzer.  I have never used
Reality but, as far as I know, Reality offers little or no advantage
over FluidSynth.  In any event, using FluidSynth is much easier
than setting up Reality.  The key to high polyphony with a soft
synth is CPU power and an absence of background tasks.  The
different soft synths have different polyphony to CPU power
ratios.  Reality and FluidSynth are pretty close on that score.
 

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Post by engrssc » Thu Dec 15, 2005 5:59 pm

Amazing program. Thanks for the info.
Ed

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Post by engrssc » Thu Dec 15, 2005 9:56 pm

I'm planning to expand on an idea I saw in another post, namely to use a wireless keyboard to control the combination action, especially after seeing the keyboard shortcuts. Expanding on that w/l idea, I opened the w/l keyboard and extended the shortcut keys with wires to the outside world. (I put a 34 pin connector on the k/b to make it neat). I plan to extend these wires to pistons to "remote control" the combo action. Reason being my wife isn't keen on a computer setup in the family room where the organ console lives. There is a room within a few feet that I can use for the Miditizer organ computer and other stuff. I tried the w/l setup and it works fine and is easily buried in the organ console. Plan to use a wall wart to power the w/l k/b in place of batteries.
Now another question (which may be beyond the scope of Miditizer), is there any way for stops that have been "chosen" by the combo action to drive an external circuit so as to indicate remotely (LED announciator panel type thing) as to on/off stop status? I see from the photos, most installations have the computer screen on or near the console. In my case, the computer/screen etc will be in another room. I can create an LED driver circuit, just wondered if the Miditzer program is able to output via it's software a stop on/off status.
Ed

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Post by Jim Henry » Thu Dec 15, 2005 10:33 pm

It would seem like you are going to wind up with a lot of cables
between the console and the computer.  Perhaps you should look at
something like a mini-IX computer that could be buried in the console.

But to answer your question, no there is no way to get information
about the stops that have been chosen for an annunciator panel. 
Every now and then I diddle around with ideas for MIDI control surfaces
for the Miditzer.  I have one on the drawing board for stop
control and it too would need a way to know what stops are on.  So
maybe, someday, there will be a way to do this.  But there are a
couple of other projects that have higher priority.

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Post by engrssc » Thu Dec 15, 2005 11:36 pm

Regarding many cables between console and computer, actually there are no cables between as the "remote control" keyboard which will go into the organ console is wireless. There is a receiver for this keyboard (and mouse if used) connected at the computer to the USB port. The keyboard transmits to it. The only requirement is that the keyboard needs to be within 6 feet or so of the receiver. In my case, the space between the two is approx 3'.
Interesting thought of using a mini-IX. I installed one in my Mac G5 and have in effect 2 separate computers in the same case. The specs seem to indicate the mini would work. Has anyone done that? Assume good results?
Ed

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Post by Jim Henry » Fri Dec 16, 2005 2:57 am

The computer keyboard is wireless, but what are you doing for the MIDI from the organ and the audio back to the speakers? 

I haven't heard of anyone using a mini-IX for a Miditzer but I can't think of any reason it shouldn't work.

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Post by Joe » Fri Dec 16, 2005 5:40 am

You could use the Wireless MIDIjet from MidiWorks
http://www.midiworks.ca/products/midijet.asp 
I like the idea of using the mini-ITX for Miditzer. 
Putting one in a Mac box, now that's funny!
 

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Post by engrssc » Fri Dec 16, 2005 10:22 am

I should say first of all, I'm starting out with a Rodgers 340 - 3 manual - existing 4 speaker system - core organ to which I'm adding midi interface(s).
I am doing the midi interface(s) to midi merge bit, so the midi signal will be hard wired between the console and the computer. As far as the speakers, I am presently in the process of building a speaker "chamber" which will occupy the wall space behind the console. This "chamber" actually extends into the garage which is behind the family room. Opening up this adjacent wall and installing vertical louvers for the sound to pass thru.
The power amps and speakers will be in these 2 organ speaker "chambers". Control over this beast is what I'm trying to work out, hence being able to use the w/l keyboard to control the Miditizer is a very good thing.
There doesn't appear to be any keyboard shortcuts for the traps??
Thanks much for all the helpful hints. This Miditizer program is up there with fantastic.
Ed

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