Yamaha SPX90 II Operating Manual page 21

This program makes it possible to add delay vibrato ef-
fects to virtually any instrument or sound. When the
input signal exceeds a programmed trigger level, the
vibrato effect is cancelled and then gradually builds up
to the programmed depth.
1. TRIGGER LEVEL. Range: 1 ~ 100%
Determines the input signal level at which the
vibrato effect is cancelled and begins to build up
again.
2. VIBRATO DELAY. Range: 1 ~ 30,000 msec
Determines how long the vibrato effect is cancell-
ed once triggered.
3. VIBRATO RISE TIME. Range: 5 msec ~ 32,000
msec
Determines how long it takes for the vibrato effect
to reach maximum depth after the VIBRATO DELAY
time has elapsed.
4. VIBRATO FREQUENCY. Range: 0.1 ~ 20.0 Hz
This parameter sets the frequency (speed) of the
vibrato effect.
5. VIBRATO DEPTH. Range: 0 ~ 100%
Sets the depth (strength) of the vibrato effect.
6. MIDI TRIGGER. Range: ON, OFF
When ON, a KEY ON signal from an external MIDI
keyboard can be used to trigger the vibrato effect.
20
This program permits variation of the input signal fre-
quency response over an extremely broad range.
(dB) 20
- 2 0
20 50 100
1. HPF. Range: THRU, 3 2 Hz ~ 1.0 kHz
This sets the cutoff frequency of the high-pass filter.
Frequencies below the set frequency are rolled off
at a rate of 6 dB/octave. When set to THRU, the HPF
is OFF.
2. MID FRQ. Range: 315 Hz ~ 4.0 kHz
Determines the center frequency of the midrange
equalization band; The midrange frequency can be
set in 1/6 octave increments.
3. MID GAIN. Range: — 15 ~ + 15 dB
Determines the amout of boost or cut applied to the
midrange equalization band.
4. MID Q. Range: 0.5 ~ 5.0
Sets the "Q" (Quality factor = bandwidth) of the
midrange EQ band. The higher the value, the nar-
rower the bandwidth.
5. HI FRQ Range: 800 Hz ~ 8.0 kHz
Determines the center frequency of the high-
frequency equalization band.
6. HI GAIN. Range: - 15 ~ + 15 dB
Determines the amount of boost or cut applied to
the high-frequency equalization band.
7. HI Q. Range: 0.5 ~ 5.0
Sets the "Q" (Quality factor = bandwidth) of the
high EQ band. The higher the value, the narrower
the bandwidth.
8. LPF. Range: 1.0 kHz ~ 11 kHz, THRU
Determines the cutoff frequency of the low-pass
filter.
9. DELAY. Range: 0.1 ~ 1800.0 msec
Sets the delay time of equalized signal following the
direct signal.
500 1k 5K 1K 10K
(Hz)