14
PSR-S670 Reference Manual
1
Vo
ic
e
s
CONTROLLER Page
MODULATION
The [MODULATION] wheel can be used to modulate the parameters below as well as the pitch (vibrato).
Here, you can set the degree to which the [MODULATION] wheel modulates each of the following
parameters.
SOUND Page
1 FILTER/EG
• FILTER
Filter is a processor that changes the timbre or tone of a sound by either blocking or passing a specific
frequency range. The parameters below determine the overall timbre of the sound by boosting or cutting a
certain frequency range. In addition to making the sound either brighter or mellower, Filter can be used to
produce electronic, synthesizer-like effects.
• EG
The EG (Envelope Generator) settings determine how the level of the
sound changes in time. This lets you reproduce many sound
characteristics of natural acoustic instruments—such as the quick
attack and decay of percussion sounds, or the long release of a
sustained piano tone.
[2
]
FILTER
Determines the degree to which the [MODULATION] wheel modulates
the Filter Cutoff Frequency. For details about the filter, see below.
[3
]
AMPLITUDE
Determines the degree to which the [MODULATION] wheel modulates
the amplitude (volume).
[5
]
LFO PMOD
Determines the degree to which the [MODULATION] wheel modulates
the pitch, or the vibrato effect.
[6
]
LFO FMOD
Determines the degree to which the [MODULATION] wheel modulates
the Filter modulation, or the wah effect.
[7
]
LFO AMOD
Determines the degree to which the [MODULATION] wheel modulates
the amplitude, or the tremolo effect.
[2
]
BRIGHT.
(Brightness)
Determines the cutoff frequency or
effective frequency range of the fil-
ter (see diagram). Higher values
result in a brighter sound.
[3
]
HARMO.
(Harmonic Con-
tent)
Determines the emphasis given to
the cutoff frequency (resonance),
set in BRIGHT. above (see dia-
gram). Higher values result in a
more pronounced effect.
[4
]
ATTACK
Determines how quickly the sound reaches its maximum level after the
key is played. The lower the value, the quicker the attack.
[5
]
DECAY
Determines how quickly the sound reaches its sustain level (a slightly
lower level than maximum). The lower the value, the quicker the decay.
[6
]
RELES.
(Release)
Determines how quickly the sound decays to silence after the key is
released. The lower the value, the quicker the decay.
Vol
u
me
These freq
u
encies are
“passed”
b
y the filter.
C
u
toff
range
Freq
u
ency
(pitch)
Cutoff Frequency
Vol
u
me
Freq
u
ency (pitch)
Resonance
Time
Le
v
el
Key on
Key off
Sustain
Level
ATTACK
DECAY
RELEASE
