Apple MainStage 3 Instruments - MainStage 3 Instruments
Apple MainStage 3 Instruments - MainStage 3 Instruments
Apple MainStage 3 Instruments - MainStage 3 Instruments
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Adjust Ultrabeat’s two-band EQ<br />
Both equalizer bands have almost identical features. You can adjust each band separately.<br />
EQ type buttons<br />
Gain knob<br />
Frequency field<br />
Q field<br />
Band 2 button<br />
EQ curve display<br />
Band 1 button<br />
Two-band EQ parameters<br />
••<br />
Band 1 and Band 2 buttons: Click to turn each band on or off. When active, the label is red. If<br />
neither EQ is activated, the signal passes through unaffected. Band 1 is a low shelving EQ.<br />
Band 2 is a high shelving EQ.<br />
••<br />
EQ type buttons: Switch between two different types of EQs: shelving (top button) and peak<br />
(lower button).<br />
••<br />
In shelving mode, all frequencies above or below the set frequency are either increased<br />
or reduced.<br />
••<br />
In peak mode, only frequencies located near the set frequency are affected.<br />
Note: Shelving EQs behave much like synthesizer lowpass and highpass filters. The key<br />
difference is that lowpass and highpass filters merely dampen certain frequencies (filter them<br />
out), whereas shelving EQs also allow these frequencies to be boosted.<br />
••<br />
Gain knobs: Positive values boost a certain frequency range as determined by the EQ type and<br />
Hz settings. Negative gain values reduce the gain of the frequency range. If the Gain knob is<br />
set to a value of 0, the EQ has no effect. Option-click a Gain knob (or click the 0 above the Gain<br />
knob) to set it to a neutral position.<br />
••<br />
Frequency (Hz) field: Drag vertically to set the frequency range to be boosted or reduced.<br />
Option-click the parameter to set the value to a neutral position: this is 200 Hz for band 1, and<br />
2000 Hz for band 2.<br />
••<br />
Q field: Drag vertically to set the Q (quality) factor. The effect of Q on the sound depends on<br />
the selected EQ type:<br />
••<br />
Shelving filters selected: as the Q value increases, the area around the threshold frequency<br />
becomes more pronounced.<br />
••<br />
Peak EQ selected: Q determines the width of the frequency band selection, low Q values<br />
select a broad band, and high Q values select a very narrow band to be boosted or reduced<br />
with the Gain knobs.<br />
Each EQ band displays parameter changes on a frequency response curve. The display provides<br />
access to the Gain, Hz, and Q parameters of each band.<br />
Chapter 14 Ultrabeat 356
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