8.2.2The envelope generator
The envelope generator, connected to the amplifier, is used to “sculpt” the form of a sound during a cycle, which begins when we press a note on the keyboard, and ends when we release.
The most current envelope modules use 4 settings that we can vary:
The Attack is the time that the sound will take to reach its maximum volume once the key has been pressed on the keyboard.
The Decay is the time that the sound will take to decline after the key is played.
The Sustain is the maximum level of volume that the sound will reach when a key is pressed.
The Release is the decline time after the key has been released.
The ADSR envelope
On the two VCA of the Moog Modular V, the envelopes include 2 supplementary settings:
The Slope Time is the time of intermediary decline situated after the decay, once a key is pressed.
The Slope Level is the level of intermediary decline situated after the decay, once a key is pressed.
The envelope generator can also be used to modulate other settings like the
8.2.3The low frequency oscillator
The LFO (Low Frequency Oscillator) possesses, among other things, the same characteristics as classic oscillator but does produce frequencies inferior to 20 Hz. In other terms, you won’t hear the sound if you connect the audio output of an LFO in an amplifier.
Not being used to produce a sound, it can be used to create a cyclic modulation on the parameter on which it is connected.
For example: if you connect an LFO to the modulation input of an amplifier, the sound volume will increase and disappear in an alternate manner depending on the speed (the frequency) of this LFO. This will create a tremolo effect.
To produce a vibrato effect, simply connect the sinusoid output of an LFO to the modulation input of an oscillator. The frequency of this oscillator will thus be modulated up and then down.
Finally, try to connect an LFO output to the modulation input of a lightly resonant
ARTURIA – MOOG MODULAR V 2.6 – USER’S MANUAL | 107 |
