User manual

4REA4 Controller Software User Guide
76
V1.30
VS1 Vocal Shift - VocalShift VS1 is a stereo vocal pitch shifter squeezing two channels of high quality pitch
shifting into a single effect. It has a very low latency (<6ms), covers the whole vocal frequency range, and
minimises the phasing and flutter artefacts common with many pitch shifters.
VocalShift allows large shifts of up to +/- 1 octave, with a further switchable octave downshift. The wide
range makes it ideal for theatrical or more extreme musical effects. The left and right channels are fully
independent, allowing separate, high quality pitch shifting on each.
The two channels can be linked and reset to flat (zero shift) using single button presses.
Semitones - Sets the amount of pitch shift applied to each channel in semitones. The range is -12 (one
octave downshift) to +12 (one octave upshift). The current value is displayed in the centre of the rotary.
When ‘active’, the control glows yellow/orange. In Link mode, both corresponding rotaries on the left and
right channels will be illuminated. A change to either will then be reflected in both.
Cents - Sets the amount of pitch shift in cents (100 cents = 1 semitone). This is added to the setting of the
Semitones (and oct down switch) control to give the overall shift (+1 semitone and +50 cents = +150 cents
pitch shift). The cents control is useful for providing very small pitch shifts, for example for phasing
and doubling effects.
Oct Down Switch - Provides an additional 1 octave downshift to the current pitch shift settings (i.e. +12
semitones and -1 octave = no overall shift).
Flat - Sets all pitch shift controls to zero (Semitones, Cents and Oct Down are all set to zero).
Width - Controls the stereo width of the two pitch shifted voices, and therefore the weighting of each in the
left/right output channels. At the “Mono” position, the left and right channels are mixed equally to both left
and right channels resulting in a centre pan, mono effect. At the “L/R” position, the left voice is fed only to the
left channel and the right voice to the right channel. Other positions graduate between the two.
Link - Forces the left and right voices to be matched. If the two channels have different, non-zero settings
the right channel pitch shift settings will be set to match those of the left channel. If the link control is then
turned off, the right channel will restore its settings from before the link was turned on. The Link control links
the Semitones, Cents and Oct-Down control. Pressing either “Flat” switch when Linked results in both voices
being set to zero.
Preset Name is displayed. Touch and scroll using the screen Rotary for live update. This is a way of live
auditioning all library presets for this module (factory, user and USB). You can also select and recall a
particular preset using the Library window.
De-Esser - Based on the flagship iLive FX engine, the De-Esser emulates the classic Auto-Threshold circuit
commonly found on high end hardware units. This produces a constant sibilance reduction regardless of
signal level, resulting in a more natural De-Essing process. In comparison, threshold based De-Essing
produces inconsistent reduction activity which can result in unnatural vocals.
De-Esser features an adjustable frequency point and a Listen button to allow monitoring of the sibilant
region. The response of the De-Esser and the amount of reduction applied are adjustable to suit vocal
programme.
The two channels are independent but their controls can be linked thanks to a latch switch.
Listen - A momentary switch used to monitor the left or right channel to listen to the ‘ess’ band to which the
gain reduction will be applied. The Listen button is independent of the “Link” configuration so that even when
Link is set, the left Listen monitors the left channel and the right Listen monitors the right channel.