Lfo Parameters And Vca Amount - E-Mu EII+ Owner's Manual

LFO/VCA MODULE
function found on standard synthesizers. The sound will continue to sustain unless you
play more notes that there are available channels, in which case previously assigned
channels will be assigned to newly played notes.
2. To exit to another function, see GENERAL INSTRUCTIONS 3 ("Exiting a Function").

2 - LFO PARAMETERS AND VCA AMOUNT

This function sets three LFO parameters (initial rate, delay before onset of LFO
modulation, and LFO variation), and also determines the extent to which the LFO
modulates the VCA.
Application: After pressing a key(s), LFO delay (function 2B) delays the onset of vibrato by an
adjustable amount. This simulates an effect often used by string players, where the vibrato is
brought in only after the initial note pitch has been clearly established.
Application: LFO variation (function 2C) adds a randomised quality to ensemble sounds by
providing slightly different vibrato rates for each key being held down. This can make orchestral
Voices sound truly polyphonic.
Application: LFO modulating VCA (function 2D) provides tremolo effects, as used for years in
guitar amplifiers.
1. With the module active, Current Voice assigned (see GENERAL INSTRUCTIONS 2),
and the ENTER LED either lit steadily or off, key in 2. The display says:
Rate Del
XX
...where x is a numeral.
Slider A controls the LFO Rate from 01 to 99 (higher values give a faster modulation
rate).
Slider B controls LFO Delay (the amount of time between hitting a key and the onset of
modulation). Range is from 00 to 99, with 99 giving an approximate 2 second delay.
Slider C controls LFO Variation. In addition to having true, one-LFO-per-Voice
polyphonic modulation, the Emulator II also has a great new feature called variation.
With 00 variation, each key will have the same vibrato rate. Increasing variation (to a
maximum of 15) alters the LFO rate every time you hit a key; the higher the number, the
greater the variation in LFO frequency. For effects such as ensemble playing, the
variation feature is invaluable as it creates the illusion of multiple players, each having
their own vibrato rate.
Slider D determines the extent to which the LFO modulates the VCA level.
© 1985, 1986, 1987 E-mu Systems, Inc.
Var VCA
XX XX XX
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