Owner`s manual

17
SELECTING A TEMPERAMENT:
1. Press and hold the SET piston.
2. Turn the Select Knob counter clockwise (left) until the Console Display reads:
TEMPERAMENT
EQUAL
3. Release SET.
4. Rotate the Alpha Dial until the desired temperament appears.
5. Press General Cancel to return to the Transposer menu.
Note: When the organ is turned off, the temperament will return to Equal.
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,
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-blown instrument, although too much can be distracting. Certain
types of music, though, seem to gain charm from a less-than-perfect wind system.
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’ exclusive Digital Dynamic Wind (patent pending) emulates these characteristics
by modeling the behavior of pipe organ wind regulating devices and the response of pipes to a
slightly unsteady wind supply. Some independent ranks have their own “software reservoir,”
and each voice is programmed to respond to wind variations in the same way 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
is provided in 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 or large chords. The “1/2” position
reduces this unsteadiness somewhat, and the “ON” position makes the wind steady under all
conditions. The position is saved when the organ is turned off.