E-Mu Vintage Keys Operation Manual page 85

PRACTICE PROGRAMMING
Because the Sustain level is set to maximum, the decay parameter has
no effect. Lower the Sustain to 00, then set the Decay to around 27.
Now the filter sweeps up, then decays back down to the Sustain Level
(which is zero). Play with the envelope parameters for awhile to get a
feel for their function. (If you're having trouble understanding the
Envelope Generators, please refer to the Programming Basics section
in this manual.)
• Troubleshooting
A common source of confusion when working with the filter envelope
is that the Attack or Release parameter might not seem to be working
correctly. Referring to the diagram below which shows the Vintage
Keys signal flow, you will notice that the DCA comes after the Filter.
The DCA controls the final volume of the sound, so if the filter's
release is longer than the release for the DCA, you won't hear it, be-
cause the DCA has already shut off the sound.
Instrument
This is just an example of why troubleshooting is important. If you are
not getting the expected result, try to analyze the situation. There will
be many times when you will have to stop for a minute and think,
"What am I trying to do and why isn't it working?" When this hap-
pens (and it will), don't panic. Troubleshooting is a normal part of the
synthesis process. Simply examine the various parameters and try to
be as analytical as possible as you solve the problem. Usually the
solution will be simple. (The filter is already wide open and can't open
any more.) Learning to play an instrument takes... Practice.
76 Vintage Keys Operation Manual
A: A H D
15 00 27 00 50
Key Held
time
Low Pass
Tone
Filter
Fc Q
S R
DCA Pan
R
L