Mutable Instruments ambika User Manual page 21

Ambika – User manual | Mutable Instruments
21 of 44
tremolo effects, etc.
A voice LFO is specific to each voice, and there will actually be a small amount of
detuning/dephasing between them, for a richer sound.
Consider the example of a guitarist playing a guitar through a tremolo pedal, and applying a vibrato
on a particular note. If you want to program something similar, you will use the voice LFO for the
vibrato (because it is slightly different and desynchronized for each individual note) ; and you will use
a part LFO for the tremolo, since it uniformly affects all the notes. Another example: you have found
the perfect combination of LFOs to create a trancey gated strings sound. The last thing you want is to
have each note of the chord triggered at a slightly different instant due to difference in timings when
the chord is played. You need a part LFO for the gating effect. A voice LFO is good for richness and
randomness, a part LFO is good for sync'ing things up.
As a result, only the voice LFO can be controlled in the modulation matrix (because it can be
controlled by velocity, aftertouch, etc. — all kind of things that might be different for each played note)
; and only the part LFOs can be synchronized to tempo.
This part LFO vs voice LFO distinction sounds confusing, and there is actually little documentation
about it. Most classic analog synthesizers do not have one LFO circuit per voice, so their behaviour is
accurately simulated by the use of part LFOs. Some VAs, like the access Virus, use voice LFOs. On
the Waldorf Blofeld, each LFO is a voice LFO by default and can be turned into a part LFO through
the use of the sync setting.
Lfo/eg 1|rate 24|wave
attk 0|deca 40|sust
lfo/eg: Selects the LFO / envelope generator to edit. The settings shown on the page are relative to
the selected LFO / EG. If you are wondering if there is such thing as a "filter envelope" and "VCA
envelope"... Yes, by default env2 is mapped to cutoff and env3 to the VCA ; but this can be changed
in the modulation matrix by patching pranksters.
rate: LFO rate. The first values (1/1 to 1/96) are note values relative to the global tempo (or to an
external MIDI clock). For example, if set to 1/4, the LFO will play one cycle every quarter note. The
other values are increasing frequencies, from 0.06 Hz (0) to 100 Hz (127).
wave (waveform): LFO waveform. A list of LFO waveforms is given below.
http://mutable-instruments.net/ambika/manual
tri|trig free
20|rele 60
2/17/17 4:58 PM