Alchemy inspector zone controls in Logic Pro for Mac

Source components are shown only in advanced view. Click the Advanced button to switch to advanced view, then click the A, B, C, or 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 source inspector is divided into three main parameter groupings: global and source parameters, group parameters, and zone parameters. See Alchemy inspector global controls in Logic Pro for Mac and Alchemy inspector group controls in Logic Pro for Mac.

Figure. Zone parameters in Main source edit window.

Inspector zone parameters

Add Zone (+) button: Open the Import browser, where you can select one or multiple samples to import into zones. Newly imported samples are added to the current configuration. Each new sample results in a new zone. See Alchemy Import browser in Logic Pro for Mac.
Select MIDI button: Turn on to automatically select zones by playing your MIDI keyboard.
Zone name field: Displays the name of the current audio file in the selected zone. Click to open a pop-up menu where you can select other source zones.
Note: The keymap editor lets you select multiple zones simultaneously. In this case the zone name field shows Multiple to indicate a multi-zone selection. Any parameter changes are applied to all selected zones. See Alchemy keymap editor in Logic Pro for Mac.
Key field: Set the root key for the selected zone with the up and down arrows. The chosen note triggers playback of the sound at its original pitch. A pitched sample should ideally be mapped to a matching root key. If the root note is defined as part of the filename, the Key parameter is set to that root note when the file is imported. If the root note isn't in the filename, samples are analyzed on import to calculate their original pitch and a suitable root key setting. Drag vertically in the field or use the arrows to set a value.
Learn button: Turn on to set the root key for a sample: the next MIDI note received defines the new root key. The button is automatically turned off once the root key has been learned.
Loop Mode field: Open a pop-up menu with seven looping options.
- None: Ignores the loop start and end points, and plays the entire sound once without looping.
- Continuous: Plays from the beginning, enters the loop region, and loops continuously in a forward direction while a note is held and during the envelope release phase.
- Sustain: Plays from the beginning, enters the loop region, loops continuously while a note is held, and exits the loop region to play the normal sound release phase.
- Forward/Back: Like Continuous, but plays the loop region alternately forward and backward.
- Start/End: In this mode, playback starts from the defined start point at 100% speed to the defined loop end position, then skips to the start point and repeats. These positions are set with the Loop Start and Loop End knobs in the source master controls.
  Note off messages have no impact on loop repetitions. If the loop end point is placed before the loop start point, playback is reversed (backward to the loop end point) when the loop start point is reached.
- Start/Length: In this mode, playback starts from the defined start point at 100% speed to the defined loop end position, then skips to the start point and repeats. The length of the loop, controlled with the Loop Length knob in the source master controls, is set as a percentage of the overall length of the sound, such that the loop end point is equal to the loop start point plus the loop length.
  If the settings of Loop Start and Loop Length controls in the source master controls cause playback to go beyond the end of the underlying sample, silence is automatically inserted at the end of the sound.
- All: Ignores the loop start and end points, and loops the entire sound continuously.
  Note: You can edit the loop start and loop end points in the source main edit page. See Alchemy zone waveform editor in Logic Pro for Mac. In VA mode, a raw oscillator noise source is used rather than loopable data, so VA synthesis elements aren't affected by the loop mode setting.
Volume knob: Set the selected zone output level. This parameter is also useful for level-matching multiple selected zones.
Pan knob: Determine the left/right pan position for each zone or the left/right balance for a stereo zone.
Coarse/Fine Tune knobs: Tune the zone in semitones (Coarse) and cents (Fine=1/100 of a semitone).
Lo Key field: Drag vertically or use the arrows to set the lowest MIDI note that triggers the zone. Alternatively, drag the left edge of the highlighted zone in the keymap editor. See Alchemy keymap editor in Logic Pro for Mac.
Hi Key field: Drag vertically or use the arrows to set the highest MIDI note that triggers the zone. Alternatively, drag the right edge of the highlighted zone in the keymap editor.
Lo Vel field: Drag vertically or use the arrows to set the lowest MIDI note velocity that triggers the zone. Alternatively, drag the lower edge of the highlighted zone in the keymap editor.
Hi Vel field: Drag vertically or use the arrows to set the highest MIDI note velocity that triggers the zone. Alternatively, drag the upper edge of the highlighted zone in the keymap editor.
Zone Fade pop-up menu: Determine the method used to fade overlapping zones at the boundaries of key and velocity ranges. No more than two zones can be triggered simultaneously within one group, which means that crossfades can be set for zones with adjacent key ranges or for zones with adjacent velocity ranges, but not for both at the same time.
- Linear: Create a linear ramp from full amplitude to zero. This typically results in a crossfade that sounds quieter at the halfway point. Linear mode can be useful when crossfading two highly similar sounds that may reinforce one another at the halfway point of an equal-power crossfade.
- Power: Create an equal-power curved fade that is suitable for most sounds. When crossfading two sounds with a similar loudness, Power mode results in a smooth fade with the same apparent loudness at the halfway point.
Left field: Drag vertically or use the arrows to set the range of the fade for the left edge of the zone, relative to the Lo Key parameter. If Lo Key is set to C2 and Left is set to 12, the zone fades in gradually for notes with pitches between C2 and C3.
Right field: Drag vertically or use the arrows to set the range of the fade for the right edge of the zone, relative to the Hi Key parameter. If Hi Key is set to C4 and Right is set to 5, the zone fades out gradually for notes with pitches between G#4 and C5.
Bottom field: Drag vertically or use the arrows to set the range of the fade for the lower edge of the zone, relative to the Lo Vel parameter. If Lo Vel is set to 20 and Bottom is set to 15, the zone fades in gradually for notes with velocities between 20 and 35. Velocity values below 20 don't trigger the zone.
Top field: Drag vertically or use the arrows to set the range of the fade for the upper edge of the zone, relative to the Hi Vel parameter. If Hi Vel is set to 90 and Top is set to 30, the zone fades out gradually for notes with velocities between 60 and 90. Velocity values above 90 don't trigger the zone.
Note: Zone fades and overlapping zones aren't compatible with morphing sources. When morphing is turned on, only one zone is triggered at a time from each morphing source (the first zone in the list), and zone fades are turned off.

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Alchemy inspector zone controls in Logic Pro for Mac

Inspector zone parameters