Delay Programs; N 18. Delay L, R; N 19. Delay L, C, R - Yamaha SPX900 Operation Manual

High-pass Filter Frequency (HPF FRQ.): THRU,
32 Hz – 1.0 kHz
Permits rolling off the low-frequency content of the reverb
signal above the set frequency. The HPF is OFF when set to
THRU.
Low-pass Filter Frequency (LPF FRQ.): 1.0 – 16 kHz,
THRU
Permits rolling off the high-frequency content of the reverb
signal above the set frequency. The LPF is OFF when set to
THRU.
PARAMETERS ACCESSED BY THE INT PARAM
KEY
Number of Early Reflections (ER NUMBER): 1 – 19
This parameter directly sets the number of early reflections
produced from 1 to 19.
Feedback Delay (FB DELAY): 0.1 – 900.0
milliseconds
Feedback Gain (FB GAIN): -99 – +99%
Feedback High-frequency Ratio (FB HIGH): x 0.1–
x 1.0
The feedback parameters permit thickening and/or extending
the early reflection sound. Feedback causes the early
reflections to generate more early reflections of themselves.
thus the FB GAIN parameter determines how many times (for
how long) the early reflections are repeated. The FB DELAY
parameter sets a delay time between the beginning of the
original early-reflections and the first of the repeats caused by
feedback. Shorter FB DELAY times simply thicken the early-
reflection sound, while longer FB DELAY times can create
extended or repeated early reflection effects. FB HIGH
determines how much of the high-frequency content of the
original early reflections is fed back. The lower the setting,
the less of the original high frequencies are fed back. This
causes a gradual decrease in high frequency content at each
repeat.
Density (DENSITY):
PERCUSSION ER: 1 – 3
PROGRAMMABLE ER. GATE REVERB. REVERSE
GAGE: 0 – 3
This parameter determines the density of the reverb
reflections (i.e. the average amount of time between
reflections). A setting of 0 or 1 produces minimum reverb
density for a more spacious sound, while a setting of 3
produces the most dense, "tightest" reverberation.
DELAY PROGRAM

n 18. DELAY L, R

n 19. DELAY L, C, R

These sophisticated delay effects offer independently variable
left and right channel delays. DELAY L, C, R additionally has
14
a variable center-channel delay.
PARAMETERS ACCESSED BY THE PARAM KEY
Left Channel Delay (Lch DLY): 0.1 – 1480.0
milliseconds
Right Channel Delay (Rch DLY): 0.1 – 1480.0
milliseconds
Center Channel Delay (Cch DLY): 0.1 – 1480.0
milliseconds (18. DELAY L, C, R only)
These parameters individually set the time between the direct
sound of the instrument and the first repeat heard from the
left. right and center channels.
Center Channel Level (Cch LVL): -200 – +200%
(18. DELAY L, C, R only)
Adjusts the level of the center-channel delay signal.
PARAMETERS ACCESSED BY THE INT PARAM
KEY
Feedback 1 Delay (FB1 DLY): 0.1 – 1480.0
milliseconds
Feedback 2 Delay (FB2 DLY): 0.1 – 1480.0
milliseconds
Two separate feedback loops are provided in the delay
program, and these parameters determine the amount of delay
applied to each feedback signal.
Feedback 1 Gain (FB1 GAIN): -99% – +99%
Feedback 2 Gain (FB2 GAIN): -99% – +99%
Set the amount of delay signal fed back to the input of the
processor. The higher the feedback gain setting, the greater
the number of delayed repeats produced by the corresponding
feedback loop.
High Frequency Feedback (HIGH): x0.1 – x1.0
Controls feedback in the high-frequency range. The high-
frequency feedback is reduced as the value of this parameter
is decreased.
High-pass Filter Frequency (HPF FRQ.): THRU,
32 Hz – 1.0 kHz
Permits rolling off the low-frequency content of the reverb
signal above the set frequency. The HPF is OFF when set to
THRU.
Low-pass Filter Frequency (LPF FRQ.): 1.0 – 16 kHz,
THRU
Permits rolling off the high-frequency content of the reverb
signal above the set frequency. The LPF is OFF when set to
THRU.