Access Virus User Manual - SoundProgramming.Net
Access Virus User Manual - SoundProgramming.Net
Access Virus User Manual - SoundProgramming.Net
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ACCESS VIRUS OS4 21<br />
The Amplifier Envelope<br />
the numeric equivalent to the<br />
value determined by the current<br />
position of the pot.<br />
Always keep in mind that for a<br />
programmable synthesizer the<br />
position of the control feature or<br />
pot does not necessarily indicate<br />
the actual value of the given function.<br />
The reason for this is that<br />
when you first activate a sound<br />
program, it will reflect the programmed<br />
value. You have to adjust<br />
the control feature before the programmed<br />
value is superseded by<br />
the value you determine manually.<br />
Now fiddle with the DECAY pot<br />
while you repeatedly press a key to<br />
activate a note. Hold the key down<br />
for good while. You will notice that<br />
the volume, once it reaches maximum<br />
level at the end of the<br />
ATTACK phase, drops until it<br />
reaches a minimum level. The<br />
DECAY pot determines the speed,<br />
or in synthesizer jargon, the rate at<br />
which the volume decreases.<br />
However, the DECAY level does not<br />
always drop to the minimum level;<br />
you can determine a random value<br />
between the maximum and minimum<br />
levels at which the volume<br />
remains constant. This level in turn<br />
is controlled via the SUSTAIN pot.<br />
Whenever the SUSTAIN level is set<br />
to maximum, the volume cannot<br />
drop during the DECAY phase; in<br />
other words, in this situation the<br />
DECAY pot is ineffective.<br />
The individual functions of a<br />
synthesizer are designed to interact;<br />
many functions are dependent<br />
on other functions. In a number of<br />
cases this means that some functions<br />
are subordinate to others, i.e.<br />
the effectiveness of a control feature<br />
is altered, modified or even<br />
negated completely by other<br />
related functions.<br />
The final pot, RELEASE, determines<br />
the speed or rate at which the volume<br />
decreases when you release<br />
the key: At low values the sound<br />
ends relatively abruptly, at high<br />
values, the sound fades out more<br />
gradually and softly. The length of<br />
the RELEASE phase also depends on<br />
which level the amplifier curve is<br />
at when you release the key: The