FXpansion EtchRed - Manual (Page 18)

Etch Operation Manual 18
© 2012 FXpansion Audio
4.2 LFO1 and LFO2
Etch Red's LFOs can operate at audio rates,
reaching speeds of 1024 Hz. These speeds
are intended to be used with the dedicated
FM function on each filter module.
The TransMod modulation from the LFOs is
always quantized to control rates.
Sync button
With the Sync button enabled, the Rate
control is set in BPM values derived from the
Reason tempo.
With the Sync button disabled, the Rate control is set in Hz.
The Sync function must be deactivated to achieve audible LFO rates to use with the filter FM
function.
The behaviour of the Sync function is explained in more detail here.
Rate [ w /Tra n sM od a m ou n t]
The Rate control dictates the speed of the LFO's oscillation.
Shape
The Shape selector allows you to choose one of several waveform shapes. C lick the up/down
buttons to cycle through the available shapes or click the display to select from a drop-down
menu.
Sawtooth, Square, Sine, Triangle and Arc-Sine (A-Sine) shapes are available.
Mph (Morph)
The Morph control shifts the centre point of the waveform without altering the wavelength. It is
similar to a pulse width control in that it varies the duty cycle of the waveform.
Phs (Phase)
The Phase control allows you to adjust the phase of the LFO within 360 degrees.
Gain [ w /Tra n sM od a m ou n t]
The Gain control offers a final attenuation control for the output of the module before it enters the
TransMod modulation system. At 100%, no attenuation is applied to the output modulation signal.
This control is intended to be modulated by other TransMod sources for dynamic, evolving
modulation effects.
LFO connections
LFO1 & LFO2 Retrigger inputs
Each LFO can be retriggered using the
dedicated C V inputs on the rear of the Etch
Red panel. Try retriggering the LFOs with
gate signals or LFOs from elsewhere in your
Reason project.
LFO outputs
The LFO outputs provide the output from
each LFO so that they can be used to
modulate parameters in other Reason
devices.
Filter FM inputs
These do not affect the LFO directly but
please note that connecting these inputs
overrides the default routing of LFO1 or
LFO2 to the dedicated FM function on Filter1
and Filter2.