Working With The Filter - E-Mu Planet Phatt Operation Manual

The envelope will stay at the Sustain level for as long as the key is
held. When the key is released, the envelope falls back down to zero at
the Release rate.
level
time
A
key
down

WORKING WITH THE FILTER

The low pass filter makes it possible to remove certain components of
the sound. A low pass filter removes the high frequency components
or put another way, it "lets the lows pass". In preparation for this
experiment choose a fairly "normal" preset (like an organ or synth).
Go to the Secondary Instrument screen and set it to "None", then set
the Primary Instrument to one which is rich in harmonics, such as
Instrument I074 Clavinet. (Since filters work by removing or accentu-
ating certain frequencies, we want to make sure that we have a lot of
frequencies to start with.) Set the
parameters as listed in the chart
below in order to "clean the slate" for
your filter investigation.
Go to the primary filter cutoff and Q
screen shown on the following page
and position the cursor below the Fc
value.
FILTER
Fc:255
H D
Instrument: 074 Clavinet
Tuning course: +00
Volume: +127
Alt. Vol. Envelope: Off
Realtime CTL: 1-8 -> All Off
Filter Type Pri: 4 Pole Lowpass
pri
Filter Fc: 255
Q:00
Filter Q: 00
Aux Envelope Amt: +100
Aux Env: A
Chapter 6: Step-By-Step
S
R
key
released
Primary
H D S R
28 00 33 00 16
STEP-BY-STEP
87