Yamaha A4000 Owner's Manual page 50

ESSENTIAL PROCEDURES
4.
Set the Filter's Velocity Sensitivity & Gain
Use Knob 1 to highlight the second function line on the display, then use Knobs 3, 4, and 5 to set the
filters velocity-to-cutoff sensitivity, velocity-to-width sensitivity, and gain.
Velocity Cutoff
Q/Width
FltrGain
• In addition to the dynamic filter settings described above, the A5000/A4000 also provides a static
filter section which can be set up via the parameters on the lowest function line on the display
(EQ). See page 135 for details.
• Scroll below the bottom function line for the filter scaling parameters which allow filter response to
be varied across the range of the keyboard or other controller. Details on page 135.
Step-by-Step
EG SETUP
The A5000/A4000 actually has three independent envelope generators which control different aspects of
the sound: amplitude, filter, and pitch. In this section we'll take a quick look at the basic procedure for set-
ting up an amplitude envelope. Full details on all envelope generators can be found in the section beginning
on page 137 of this manual.
1.
Go To the EG Display
If you are not already there, press the [EDIT] button and then the [EG] function key to go to the
"EDIT-AmpEG" display.
50
Chapter 2 Sampler Basics & Essential Procedures
With this parameter the filter can set so that its cutoff frequency varies according to key-
board (or other controller) velocity. In other words, the filter cutoff frequency, and there-
fore the timbre of the sound, will vary according to how hard each note is played. This
parameter can be set to both positive and negative values: positive values produce
higher cutoff frequencies in response to higher velocity, while negative values produce
lower cutoff frequencies in response to higher velocity.
Similarly to the "Velocity Cutoff" parameter above, the " Q/Width" parameter causes
the bandwidth or resonant peak of the filter (depending on the selected filter type) to
vary according to keyboard (or other controller) velocity.
Although it is on the same function line as the velocity sensitivity parameters, the "Fltr-
Gain" parameter simply adjusts the overall gain of the filter - normally to compensate for
changes in loudness produced by the filter's response.
• A5000/A4000