3: The Programs & Parameters; Parameters Provided For All Programs; Level Parameters (Accessed Via Level Key); Eq Parameters (Accessed Via Eq Key) - Yamaha SPX900 Operation Manual

PARAMETERS PROVIDED
FOR ALL PROGRAMS

LEVEL PARAMETERS (Accessed via LEVEL key)

Effect/Direct Signal Balance (BALANCE): 0 – 100%
This parameter adjusts the balance between the direct sound
and effect signals. At 100% only the effect sound is delivered
from the SPX900 outputs, while at 0% only the direct sound is
output. At a setting of 50%. the direct and effect sounds are
output in approximately equal proportions.
Effect Output Level (OUT LVL): 0 – 200%
This parameter sets the overall output level of the effect
program. This is particularly handy for matching levels
between different effects.
DUAL EFFECT PROGRAM (PROGRAMS 48 – 50)
LEVEL PARAMETERS
The level parameters available for the dual effect programs
(programs 48 – 50) are the same as those for the other
programs, except that separate parameters are provided for the
left and right channels.
BALANCE 1 = Effect 1 Balance
BALANCE 2 = Effect 2 Balance
OUT LVL 1 = Effect 1 Output Level
OUT LVL 2 = Effect 2 Output Level

EQ PARAMETERS (Accessed via EQ key)

When the EQ key is pressed, you are presented with three
choices: "OFF" (the default setting), "EQ" (2-band parametric
equalizer mode), or "D.FLT" (Dynamic Filter mode). Use the
parameter and keys to select the desired mode of
operation. The EQ mode provides 2-band parametric
equalization, while the Dynamic Filter mode provides a filter
which can be automatically swept across a specified frequency
range by the SPX900's internal low frequency oscillator or the
level of the input signal.
PARAMETERS AVAILABLE IN THE "EQ"
MODE
Low EQ Peaking or Shelving Response (LOW EQ):
PEAK, SHLV
High EQ Peaking or Shelving Response (HIGH EQ):
PEAK, SHLV
These parameters determine whether the corresponding band
has a peaking or shelving filter response.
3: THE PROGRAMS & PARAMETERS
Low EQ Frequency (LOW FRQ): 32 Hz – 2.2 kHz
High EQ Frequency (HIGH FRQ): 500 Hz – 16 kHz
These parameters determine the center frequency for
equalization in the corresponding band. In the shelving mode,
these parameters represent the turn over frequency rather than
the center frequencies.
Low EQ Gain (LOW GAIN): -15 – +15 dB
High EQ Gain (HIGH GAIN): -15 – +15 dB
These parameters determine the amount of boost or cut
applied to the corresponding EQ band.
Low EQ Bandwidth (LOW Q): 0.1 – 5.0 (PEAK mode
only)
High EQ Bandwidth (HI Q): 0.1 – 5.0 (PEAK mode
only)
These parameters determine the bandwidth of the
corresponding EQ band. A setting of 5.0 produces the
narrowest bandwidth (sharpest response), and the minimum
setting of 0.1 produces the widest bandwidth (broadest
response). Note that the "Q" parameters for the low and high
bands only function when the corresponding band is set to the
PEAK mode.
PARAMETERS AVAILABLE IN THE "D.FLT"
MODE
Control Type (CTL TYPE): LFO, LEVEL
Determines whether the sweep of the dynamic filter is
controlled by the SPX900's LFO (Low Frequency Oscillator)
or the level of the input signal.
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