Owner`s manual

18
ADJUSTING THE WIND STABILIZER:
1. Press and hold the SET piston.
2. Turn the Select Knob counter clockwise (left) to “WIND STABILIZER”.
3. Release SET.
4. Rotate the Alpha Dial to select “OFF”, “1/2”, or “ON”.
RANDOM DETUNING
One of the essential ingredients of a pipe organ ensemble arises from the small amount of
pitch error in each pipe. No matter how carefully an instrument is tuned, small changes in
temperature or humidity causes the pipes to drift from their original pitches. Reed pipes are
especially prone to drift over time due to “creeping” of the tuning wire with cyclic
temperature variations.
The Random Detuning feature causes selected notes to receive a small amount of
detuning. The amount of detuning is chosen at random for each note of each voice. Some
notes will not be detuned at all. The number of notes detuned and the maximum amount of
detuning are selected for each voice to mimic the behavior of an equivalent pipe set. For
instance, reeds will exhibit more pitch error than flues. Because the detuning is random, there
is no degradation of the overall temperament of the instrument and the amount of detuning is
no more than one would experience in a recently-tuned pipe instrument.
This detuning process happens each time the organ is turned on. Once computed, the
pitch of each note remains constant. Thus, the tuning will be a little different, as it would be
with a pipe organ, each time the organ is used. The amount of Random Detuning present in
the organ will be set by a Rodgers representative during final voicing.
EXPRESSION RANGE ADJUSTMENTS
The minimum volume of each division when its Expression Shoe is closed can be
adjusted to suit specific musical needs or personal tastes. The “MINIMUM EXPR:” menu
allows three settings— “NORMAL”, “ppp”, and “pppp”. The “NORMAL” setting produces
the amount of expression obtained on most pipe instruments with typical swell shades. The
ppp” setting produces a greater range than the “NORMAL” setting, and the “pppp” setting
produces the amount of expression one might expect from very heavy and thick swell shades.
The settings do not affect the sound at all when the expression shoe is open.
There are special settings of the Expression Range that can be selected when installing a
pipe/electronic combination organ. When speakers for the enclosed division (Swell) are
placed inside a pipe organ swell box, the digitally sampled electronic stops in those divisions
can sound at a constant volume by setting the Expression Range to “Unenclosed”. Then the
expression of those stops, like the pipes in the swell box, will be controlled by the swell
shades.