10.6

73Logic Pro Instruments
Logic Pro Alchemy zone waveform editor
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 view detailed parameters for the
selected source.
The source edit window is opened by clicking the Edit button on any source subpage. Click
the close window icon (X) at the top right to close the window.
The waveform display of the audio associated with the currently selected zone is shown
at bottom of the Main edit window. Zones can be selected in the keymap editor or zone
parameters in the inspector. See Logic Pro Alchemy keymap editor and Logic Pro Alchemy
inspector zone controls.
Note: If the additive or spectral engines are in use, the waveform display shows the
resynthesized sound amplitude envelope rather than the original sample.
When morphing is enabled, vertical gray lines with numbered handles are displayed over
the waveform. These are warp markers. For information on use of warp markers, see
Manually time-aligning morphed sounds in Alchemy.
The bright vertical blue lines displayed over the waveform, labeled S and E, indicate
playback start and end points. Drag the S or E handle right or left to trim unwanted audio
playback from the start or the end of the sound.
Depending on the source material and active morph mode, light blue lines may appear on
the background between the start and end markers. These can help with manual alignment
of warp markers.
If the selected zone is set to one of the looping modes, loop start and loop end markers are
displayed as faint orange lines, each with a small triangular handle shown in the ruler. The
loop region is highlighted between these markers. The marker with the left-facing handle
sets the loop end point. The marker with the right-facing handle sets the loop end point.
Drag the triangular marker handles to adjust the loop start and end points. Click and hold
the handle of a loop marker to zoom the waveform horizontally, allowing for more accurate
placement.
Note: You cannot position the loop start point later than the loop end point. You can,
however, drag both the loop start and loop end markers to the same position, creating
a sustain point rather than a loop region. This option is available only in the additive or
spectral engines, or with a sample loaded into the granular engine, but not in sampler
mode.