LFO

BLUE has ten LFOs (low frequency oscillators), six of which are predefined for faster access and easier editing. The remaining four Free LFOs can be routed using the Modulation Matrix. The LFOs available are

PWM A / BPulse Width Modulation LFO for Osc A and Osc B
Filter A / BFilter frequency LFO for Filter A and Filter B.
TremTremolo LFO (Main volume modulation)
Vib Vibrato LFO (Main pitch modulation)
Free A to DFree LFOs for use in the modulation matrix

The controls for each LFO are:

TypeWaveform of the LFO, there are 6 types - Sine, Triangle, Saw Up / Down, Square and Sample and Hold
Reset TypeLFO reset type, there are three different modes
PolyIn poly modes, each note played has its own LFO
FreeIn free mode, all notes played share the same LFO which is running constantly
MonoIn mono mode, all notes played share the same LFO, and this LFO is reset when you press a key

LFO Sync Off / On

When Sync is turned on then the LFO period is synced to the host’s tempo.

LFO Speed

Speed of the LFO either in hertz (cycles per second), or period in bars / beats. (if the sync parameter is set to on)

LFO Amount

For the Filter A/B, tremolo and vibrato LFOs, this controls the amount by which these LFOs alters the sound The Free LFO's also have an amount. Keep them at full amount unless you like to control the amount of a Free LFO's using the Modulation Matrix.

Key > LFO Speed

This controls whether the LFO speed changes depending on the key pressed. For positive values, higher notes produce a faster LFO speed, and for negative values, higher notes have slower speed LFO.

LFO Symmetry

This controls the LFO symmetry, basically how quickly the LFO reaches its middle point. It’s useful to use with the square LFO because you can alter the pulse width with it.

LFO Smooth

Smoothing of the LFO output. It’s useful to use with the square LFO so to smooth out the abrupt changes in value.

LFO Attack

How quickly the LFO reaches the maximum value.

LFO Decay

How quickly the LFO decays away from its full value after the full value is reached. At the maximum setting the Decay is turned off so the LFO stays at the maximum amount.

LFO Humanization

LFO humanization alters the period of the LFO randomly, to make the LFO sound more ‘human’. The LFO humanization controls the maximum amount of this randomization.

Index