Use selection-based processing in Logic Pro for Mac
While working in the Tracks area, you can apply one or more audio effect plug-ins to selected audio regions or to marquee selections of audio regions. You can preview the result and make further adjustments before applying the resulting changes to the selection. Effects can include both plug-ins included with Logic Pro as well as Audio Units effect plug-ins, and are independent of the plug-ins used on the track.
You can apply effects to a selection, or create a new take with the processed file(s). When processing a marquee selection, you can maintain the original region borders or create a new region containing the processed marquee selection. When both Split at Marquee Borders and Create New Take are selected (and the marquee selection is on a region, not a take folder), the created take folder contains only the marquee selection. If Split at Marquee Borders is not selected or if a take folder rather than a region is marquee selected, a new take is created for the entire original region.
The Selection-Based Processing window includes two separate sets of plug-ins, marked A and B. You can switch between sets. For each set, you can choose a complete channel strip setting or add plug-ins individually and modify their settings. You can then compare set A and set B and choose which one to use.
When Enable Complete Features is selected in Logic Pro > Settings > Advanced, you can access and use the Selection-Based Processing window.
You can also apply selection-based processing when working in the Audio Track Editor.
Select one or more audio regions in the Tracks area or the Audio Track Editor.
Make a marquee selection in the Tracks area or the Audio Track Editor.
Do one of the following:
Choose Functions > Selection-Based Processing from the Tracks area or Audio Track Editor menu bar (or use the Show/Hide Selection-Based Processing key command).
Control-click a selected region, then choose Processing > Apply Selection-based Processing from the shortcut menu.
In the Selection-Based Processing window, do any of the following:
To select the active process: Click the On/Off switch for Set A or Set B.
Turning on one process turns off the other one. You can switch between processes freely during playback.
To apply a complete channel strip setting to the selection: Choose a setting from the Channel Strip Setting pop-up menu.
After you choose a channel strip setting, you can add, remove, and modify individual plug-ins.
To add a plug-in: Click an empty slot in the active process (Set A or Set B), and choose a plug-in from the pop-up menu.
When you add a plug-in, the plug-in window opens so you can adjust its settings.
To create a new audio region containing the selected portion of a marquee selection: Select the Split at Marquee Borders checkbox.
To create a new take containing an audio file with the changes: Select the Create New Take checkbox.
To extend the length of the created file to include any instrument release and potential effect tail: Select the Add Effect Tail checkbox.
To set the gain compensation for the selection: Choose a setting from the Gain pop-up menu.
No Change: No gain change is applied to the signal.
Loudness Compensation: Alters the level of the processed signal to match the perceived loudness of the unprocessed signal.
Overload Protection: Lowers the processed signal in case of overloads (levels > 0dB) to eliminate clipping, while levels below 0 dB are unchanged.
Normalize: Increases or decreases the processed signal to the highest possible level without causing clipping (distortion).
To preview changes: Click the Preview button. You can adjust the volume of the preview with the Preview slider.
By default, the preview is soloed. To hear the preview together with the project, choose Preview enables Solo from the Action pop-up menu to deselect it.
To turn on the cycle area when previewing, choose Preview enables Cycle from the Action pop-up menu .
To apply your changes, click Apply.
In Logic Pro, do one of the following:
Choose Functions > Apply Selection-Based Processing Again from the Tracks area or Audio Track Editor local menu bar.
Control-click the region, then choose Apply Selection-Based Processing Again from the shortcut menu.
You can use this command to make a new selection and quickly apply the current selection-based processing to the selection.
When Enable Complete Features is selected in Logic Pro > Settings > Advanced, you can access and use the Selection-Based Processing window.
to deselect it.