Specifications

300 E-MU Systems
Preset Programming
Editing Presets
Every instrument in PX-7 has it's own predetermined volume envelope
which is used when the Volume Envelope parameter is set to “factory.” By
setting the Volume Envelope to “time-based” or “tempo-based,” you can
reshape the instrument's natural volume envelope any way you want. By
reshaping the volume envelope of a instrument, you can dramatically
change the way the sound is perceived. For example, you can make
“bowed” pianos or backward gongs. The diagrams to the left show the
characteristic volume envelopes of a few common sounds.
In preparation for this experiment choose almost any of the standard organ
(org:) presets which continues to sustain when the key is held down. Go to
the Instrument page and set it to “None” on all layers except Layer 1. Now
you’re ready to play with the Volume Envelope.
 To Setup the Volume Envelope
1. Go to the Volume Envelope mode screen, by pressing the “Amp” jump
button, and set the Volume Envelope mode to “time-based.”
2. Now move on to the next screen to set the Volume Envelope
parameters.


Front panel knobs 5-8
are routed to the volume
envelope parameters and thus
affect the settings. You may
want to disconnect the
PatchCords to gain total control
of the envelope parameters.
(Alternately, you can create a
completely blank preset and start
from there.)
3. Increase the Attack 1 time value and play a note. The attack controls
the time it takes for the sound to reach the Attack level when a key is
pressed and held.
Atk1
Atk2
Dcy1
Dcy2
Rls1
Rls2
Key Down Key Released
Sustain
time
level
L1
VOLUME ENVELOPE
Mode: t
ime-based
L1
VOL ENV TIME LEVEL
Attack 1 5
0 100%
Percussion
Piano
Organ
Strings