User's Manual

51
The LFOs
What’s an LFO?
LFO is an abbreviation for Low Frequency Oscillator. LFOs are the cause of familiar eects like
vibrato and tremolo, but they can be used in very complex ways (as the presets will attest).
Hydrasynth has 5 LFOs that can modulate any available parameter through the Mod Matrix. All
5 have identical parameters, so every description applies equally to all.
LFO features
Hydrasynth LFOs might be more exible than
any you have encountered. Here are some
highlights:
• Delayed onset through the Delay and
Fade-in parameters
• Adjustable phase: start the modulation
from any point in the LFO waveform
• Synchronized or unsynchronized modes
• A wide range of rates, from super slow to
audio
• Independent LFO per voice
• LFOs can modulate themselves, each other,
and/or anything else
• An LFO can be triggered a single time or
loop indenitely
• Design your own LFO with the Step LFO
features
The Vibrato feature is a sixth LFO dedicated to the mod wheel. It is not available as a
source or destination in the Mod Matrix. For details, see the Vibrato settings (p.62) of
the Voice module chapter.
LFOs 1 and 2
Hydrasynth has pre-wired connections linking LFO 1 to the Filters and LFO 2 to the Amp
module. More LFOs can be routed to these destinations as needed through the The Mod Matrix
(p.73).
LFO parameters: page 1
Control knob Parameter Range Description
1 Wave Sine, Triangle, Saw Up, Saw Down,
Square, Pulse27%, Pulse13%, S&H,
Noise, Random, Step
Selects LFO waveform. “Step”
is user-dened
2 Rate BPM = O: 0.02 to 150.0 Hz
BPM = On: 64’ to 1/64T
Sets duration of LFO cycle
3 BPM Sync O, On Toggles LFO rate from Hz to
synchronized time divisions
4 TrigSync Poly, Single, O Poly: independent LFO per
voice
Single: LFO aects all voices;
each new note retriggers
LFO
O: LFO runs freely