Adding The Filter Envelope - E-Mu XK6Xtreme Keys Owner's Manual

gets more and more dull as you remove more and more high
frequencies from the sound. At some point, the sound completely
disappears. (You have filtered out everything.) The chart on the
following page illustrates what you just did.
100
80
60
40
20
Turn the filter back up to full, then adjust the Q.
3.
Set the Q about halfway up, then adjust the Cutoff as you play the
4.
keyboard. As you change the Cutoff, notice that the sound now has a
sharp, nasal quality. A high Q boosts or amplifies the frequencies at the
cutoff frequency (Fc).

Adding the Filter Envelope

Now let's modulate the Filter Frequency with the Filter Envelope. The Filter
Envelope is a device that can automatically change the filter frequency
during the course of the note. Before we define the Filter Envelope, we need
to patch the Filter Envelope to the Filter Frequency.
To Setup the Filter Envelope:
Go to the PatchCord screen by pressing the Cords Jump Key.
1.
L1
PATCHCORD
FiltEnv+
Move the cursor to PatchCord #3. This patchcord is preprogrammed to
2.
connect the Filter Envelope to Filter Cutoff Frequency.
Move the cursor to the last field in the lower line. This is the Amount
3.
field. The Amount field determines the amount of modulation applied.
Set this value to +100.
Cutoff Frequency
Output of Filter
40 80 160 360 720 1440 2880
Frequency
-> FiltFreq
Preset Programming
Editing Presets
...
#03
+100
XK-6 Owners Manual 203