Open Audio File Editor…    ⌘6

Opens the Audio File Editor to work with the current track’s audio file. NB the Audio File editor is destructive!

Logic Pro Audio File Editor overview — Apple Support

Most day-to-day audio editing tasks in Logic Pro are performed in the main window and Audio Track Editor. The Audio File Editor is useful for removing pops and clicks in audio material, setting accurate crossover points for looped playback, correcting phase cancellation errors, and more.

You can use the Audio File Editor to work with transient markers that indicate significant points—or transients—in an audio file. The audio on a track is analyzed for transients the first time you enable that track for Flex Time editing. Any detected transients in the file are marked.

Important: Most edits and functions performed in the Audio File Editor are destructive. This means the actual data of audio files is changed. Although you can undo edits and processing commands, you should work with copies of your audio files, rather than the originals.

#LogicProX @StudioIntern1

  Select All Previous Samples    ⌃⌥⇧←

Selects all of the samples to the left of the playhead.

Logic Pro Audio File Editor overview — Apple Support

Most day-to-day audio editing tasks in Logic Pro are performed in the main window and Audio Track Editor. The Audio File Editor is useful for removing pops and clicks in audio material, setting accurate crossover points for looped playback, correcting phase cancellation errors, and more.
You can use the Audio File Editor to work with transient markers that indicate significant points—or transients—in an audio file. The audio on a track is analyzed for transients the first time you enable that track for Flex Time editing. Any detected transients in the file are marked.

⇧ SHIFT – ⌃ CONTROL – ⌥ OPTION – ⌘ COMMAND

Logic Pro X keyboard command of the day. #LogicProX @StudioIntern1

  Play/Stop Region    ⌃⇧˽

When you are editing audio it can be useful to play parts of the audio that aren’t currently selected. The ‘Play/Stop Region’ command plays from the beginning of the region, as opposed to continuing from the selection.

I will need to read if I am going to do any serious audio editing in Logic. 

Play audio files in the Audio File Editor — Logic Pro X

Play/Stop Region: Toggles between playback of the region start and end points—regardless of the selected area.

⇧ SHIFT  –  ⌃ CONTROL  –  ⌥ OPTION  –  ⌘ COMMAND

Logic Pro X keyboard command of the day. #LogicProX @StudioIntern1

  Open in Audio File Editor    ⌃W

Opens the currently selected note/sample in the Audio File Editor. Not to be confused with the global command ‘Open in External Sample Editor ⇧W’ (I have this currently set to RX7) which opens the audio in a separate application.

Audio File Editor overview — Logic Pro X

Most day-to-day audio editing tasks are performed in the main window and Audio Track Editor. The Audio File Editor is useful for removing pops and clicks in audio material, setting accurate crossover points for looped playback, correcting phase cancellation errors, and more.

You can use the Audio File Editor to work with transient markers that indicate significant points—or transients—in an audio file. The audio on a track is analyzed for transients the first time you enable that track for Flex Time editing. Any detected transients in the file are marked.

Important: Most edits and functions performed in the Audio File Editor are destructive. This means the actual data of audio files is changed. Although you can undo edits and processing commands, you should work with copies of your audio files, rather than the originals.

⇧ SHIFT – ⌃ CONTROL – ⌥ OPTION – ⌘ COMMAND

Logic Pro X keyboard command of the day. #LogicProX @StudioIntern1

  Select All Previous    ⌃⌥⇧←

Select all of the audio prior to the current playhead. Only in the Audio File Editor.

Audio File Editor overview — Logic Pro X

Most day-to-day audio editing tasks are performed in the main window and Audio Track Editor. The Audio File Editor is useful for removing pops and clicks in audio material, setting accurate crossover points for looped playback, correcting phase cancellation errors, and more.

⇧ SHIFT – ⌃ CONTROL – ⌥ OPTION – ⌘ COMMAND