Access Virus TI, Руководство пользователя

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21 FIRST STEPS
The Amplifier Envelope
Section
The four knobs at the bottom right of the panel control the
amplifier envelope i.e. how volume changes during and immedi-
ately after each note you play:
> ATTACK: How long it takes for the level to go from silence to
maximum.
> DECAY: How long it takes from maximum to the SUSTAIN
level...
> SUSTAIN: The level of sustained notes immediately after
DECAY.
> RELEASE: How long it takes to fade out after notes are
released.
Here are a few practical experiments for novices.
ATTACK
Turn the ATTACK knob down to minimum to reach the value
already stored in ROM-A127 (which is 0). Now turn it up slowly
while repeatedly playing notes on your keyboard – you will hear
the start of each note becoming progressively slower. Leave
ATTACK at around 40 for now.
DECAY
Turn the DECAY knob up to maximum. The original value was
already 127 – you should see the white “original value indicator”
LED in the MIX section light up. Slowly turn DECAY down while
repeatedly playing a note on your keyboard. You will hear the
note getting shorter until it becomes a very short blip when
DECAY reaches minimum. Leave DECAY at minimum for now.
SUSTAIN
Turn the SUSTAIN knob down to minimum (the original value
was already 0). Now turn it up again while repeatedly playing a
note on your keyboard. The original value indicator should dis-
appear, and you should hear the volume of the sustained note
change accordingly. Leave SUSTAIN at 64 and take DECAY
back up to around 40.
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