Yamaha Tyros4 Reference Manual page 13

2 AFTER TOUCH
Aftertouch can be used to modulate the parameters below. Here, you can set the
degree to which Aftertouch modulates each of the following parameters.
[2 ]
FILTER
[3 ]
AMPLITUDE
[5 ]
LFO PMOD
[6 ]
LFO FMOD
[7 ]
LFO AMOD
 SOUND Page
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 elec-
tronic, synthesizer-like effects.
[1 ]
BRIGHT
(Brightness)
[2 ]
HARMO.
(Harmonic
content)
EG
The EG (Envelope Generator) settings determine how the level of the
sound changes in time. This lets you reproduce many sound character-
istics of natural acoustic instruments—such as the quick attack and
decay of percussion sounds, or the long release of a sustained piano
tone.
[3 ]
ATTACK
[4 ]
DECAY
[5 ]
RELES.
(Release)
Determines the degree to which Aftertouch modulates the Filter Cutoff Frequency.
See below for details about Filter.
Determines the degree to which Aftertouch modulates the amplitude (volume).
Determines the degree to which Aftertouch modulates the pitch, or the vibrato effect.
Determines the degree to which Aftertouch modulates the Filter modulation, or the
wah effect.
Determines the degree to which Aftertouch modulates the amplitude, or the tremolo
effect.
Determines the cutoff frequency or
effective frequency range of the filter
(see diagram). Higher values result in a
brighter sound.
Determines the emphasis given to the
cutoff frequency (resonance), set in
BRIGHT above (see diagram). Higher
values result in a more pronounced
effect.
Determines how quickly the sound reaches its maximum level after the key is played.
The lower the value, the quicker the attack.
Determines how quickly the sound reaches its sustain level (a slightly lower level than
maximum). The lower the value, the quicker the decay.
Determines how quickly the sound decays to silence after the key is released. The
lower the value, the quicker the decay.
Volume
Cutoff Frequency
These frequencies are Cutoff
"passed" by the filter. range
Volume
Resonance
Frequency (pitch)
Level
ATTACK DECAY RELEASE
Key on Key off
Tyros4 Reference Manual
1
Frequency
(pitch)
Sustain
Level
Time
13