10.6

Table Of Contents
54Logic Pro Instruments
Sampler element parameters
Waveform window: Shows real-time changes to the waveform.
On/off button: Enable or disable the sampler element in the source.
Volume knob: Set the output level of the sampler element within the source. When
multiple elements are used in a source, use this control to set the relative level of the
sampled component.
Reverse button: Turn on to play samples backwards. If the loop mode in the main source
section is set to Forward/Back, enabling this parameter also reverses the loop playback
order. See Logic Pro Alchemy source subpage controls.
Logic Pro Alchemy VA element controls
Source components are shown only in advanced view. Click the Advanced button to switch
to advanced view, then click the A/B/C/D button to select the source you want to edit.
The parameters in this section are shown when the VA (Virtual Analog) button is active in a
source subpage.
Virtual Analog parameters
Waveform window: Shows real-time changes to the waveform.
Oscillator on/off button: Enable or disable the main oscillator. When you click the Name
bar File button, and choose Initialize Preset from the pop-up menu to initialize Alchemy
to default settings, the VA element is automatically enabled.
Wave pop-up menu and field: Choose an oscillator waveform. Basic saw, sine, square,
and triangle and many specialized waveforms are provided. You can also step through
the available waveforms with the Previous and Next buttons (the arrows).
(Oscillator) Vol knob: Set the output level of the oscillator. When multiple elements are
used in a source, use this control to set the relative level of the oscillator component.
Sym knob: Alter the symmetry, or shape, of the oscillator waveform. When a square
wave is active, Symmetry acts as a pulsewidth control. The effective range is between
5% and 95% because extreme values may cause sonic artifacts.
Phase knob: Set the oscillator start point (phase). Values from 0% to 99.9% set a fixed
start point for the oscillator. A value of 100% causes random variations of the waveform
start point each time the oscillator is triggered.
Sync knob: Enable oscillator sync and set the pitch that the main oscillator is
synchronized with.
Num(ber) knob: Set the number of unison voices.