Automatic Shutdown Timer - Rodgers 940 Manual

AUTOMATIC SHUTDOWN TIMER
When the organ is on and left unattended, it will automatically tum off after two hours.
Operating any key or control will reset the timer for another two hours.
Playing the organ from a remote MIDI keyboard or sequencer will also reset the two-hour
automatic timer.
RODGERS DIGITAL DYNAMIC WIND
Part of the personality of an individual pipe organ relates to the steadiness of the wind supply to
the pipes. Because
air
is an elastic medium, there is some amount of "give" in the wind supply of
every pipe instrument. Some organs exhibit more unsteadiness than others, usually according to the
type of wind regulators used (single or multiple reservoirs, schwimmer regulators, etc.). A small
amount of unsteadiness in the wind helps the listener to identify the sound as that of a wind-driven
instrument, while too much can be distracting, particularly in "lively" music. Certain types of music,
though, seem to gain charm from a less-than-perfect wind
syste~.
Another characteristic of pipe organs involves changes in pitch which occur in individual pipes
when playing large numbers of pipes together. These pitch changes are due both to variations in
wind pressure as the wind demand becomes greater, and to the influence of the sound from
neighboring pipes. This latter effect is greatest upon large-scale flute voices, and least upon narrow-
scaled string voices. Even though this results in significant detuning, the human ear seems to
perceive instead an increase in ensemble effect.
Rodgers' Digital Dynamic Wind emulates these characteristics by modeling the behavior of pipe
organ wind regulating devices and the response of pipes to a slightly unsteady wind supply. Each
organ division has its own "software reservoir," and each voice is programmed to respond to wind
variations in the same way that its equivalent pipe rank or ranks would respond.
WIND STABILIZER
In order to adjust the behavior of the organ wind system, a WIND STABILIZER menu item is
provided on the console display. This stabilizer operates in much the same way as does the stabilizer
control provided on some pipe instruments. In the OFF position, the wind has a noticeable
unsteadiness in the playing of rapid passages. The 1/2 position reduces this unsteadiness somewhat,
and the ON position makes the wind steady under all conditions. The position will
be
remembered
when the organ is turned off.
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