Logic Pro User Guide for Mac
- Welcome
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- What’s new in Logic Pro for Mac 11
- What’s new in Logic Pro for Mac 10.8
- What’s new in Logic Pro for Mac 10.7.8
- What’s new in Logic Pro for Mac 10.7.5
- What’s new in Logic Pro 10.7.3
- What’s new in Logic Pro 10.7
- What’s new in Logic Pro 10.6
- What’s new in Logic Pro 10.5
- What’s new in Logic Pro 10.4
- What’s new in Logic Pro 10.3
- What’s new in Logic Pro 10.2
- What’s new in Logic Pro 10.0
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- What is Logic Pro for Mac?
- Logic Pro project basics
- Use menu commands and key commands
- Use the complete set of Logic Pro features
- Undo and redo edits
- Manage Logic Pro content
- How to get help
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- Projects overview
- Create projects
- Open projects
- Save projects
- Delete projects
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- Play a project
- Set the playhead position
- Control playback with the transport buttons
- Use transport shortcut menus
- Use transport key commands
- Customize the control bar
- Change the LCD display mode in Logic Pro for Mac
- Monitor and reset MIDI events
- Use the cycle area
- Use the Chase Events function
- Use Apple Remote to control Logic Pro
- Use Logic Remote to control Logic Pro projects
- Preview projects in the Finder
- Close projects
- View project information
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- Tracks overview
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- Create tracks
- Create tracks using drag and drop
- Create tracks using existing channel strips
- Assign tracks to different channel strips
- Choose the default region type for software instrument tracks
- Select tracks
- Duplicate tracks
- Rename tracks
- Change track icons
- Change track colors
- Reorder tracks
- Zoom tracks
- Replace or double drum sounds
- Control timing with the groove track
- Use selection-based processing
- Edit track parameters
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- Overview
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- Before recording software instruments
- Play software instruments
- Record software instruments
- Record additional software instrument takes
- Overdub software instrument recordings
- Spot erase software instrument recordings
- Use Note Repeat
- Replace software instrument recordings
- Record to multiple software instrument tracks
- Record multiple MIDI devices to multiple tracks
- Record software instruments and audio simultaneously
- Use step input recording techniques
- Record MIDI messages from another music app
- Route MIDI internally to software instrument tracks
- Use the metronome
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- Arranging overview
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- Regions overview
- Select regions
- Select parts of regions
- Cut, copy, and paste regions
- Move regions
- Add or remove gaps
- Delay region playback
- Loop regions
- Repeat regions
- Resize regions
- Mute and solo regions
- Time stretch regions
- Reverse audio regions
- Split regions
- Demix MIDI regions
- Join regions
- Create regions in the Tracks area
- Change the gain of audio regions in the Tracks area
- Normalize audio regions in the Tracks area
- Create aliases of MIDI regions
- Convert repeated MIDI regions to loops
- Change the color of regions
- Convert audio regions to samples for a sampler instrument
- Rename regions
- Delete regions
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- Chords overview
- Add and delete chords
- Select chords
- Cut, copy, and paste chords
- Move and resize chords
- Loop chords on the Chord track
- Transpose chords
- Edit chords
- Work with chord groups
- Use chord progressions
- Change the chord rhythm
- Choose which chords a Session Player region follows
- Analyze the key signature of a range of chords
- Extract vocal and instrumental stems with Stem Splitter
- Create groove templates
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- Overview
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- Add notes
- Select notes
- Snap items to the grid
- Move notes
- Copy notes
- Change the pitch of notes
- Resize notes
- Edit note velocity
- Quantize the timing of notes
- Quantize the pitch of notes
- Change note articulations
- Lock the position of events
- Mute notes
- Change note color
- View note labels
- Delete notes
- Time stretch notes
- View multiple MIDI regions
- Split chords
- Automation/MIDI area in the Piano Roll Editor
- Open other editors
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- Logic Pro for Mac advanced editors overview
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- Audio File Editor overview
- Play audio files in the Audio File Editor
- Navigate audio files in the Audio File Editor
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- Audio File Editor edit commands
- Edit audio files with transient markers
- Use the Audio File Editor Pencil tool
- Trim or silence audio files
- Remove DC offset
- Set audio file levels
- Normalize audio files
- Fade audio files
- Reverse audio and invert phase
- Audio File Editor Loop commands
- Undo Audio File Editor edits
- Backup audio files
- Use an external sample editor
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- Mixing overview
- Set channel strip input formats
- Set channel strip pan or balance positions
- Mute and solo channel strips
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- Plug-ins overview
- Add, remove, move, and copy plug-ins
- Insert a plug-in on a track using drag and drop
- Activate plug-ins on inactive channels
- Use the Channel EQ
- Work in the plug-in window
- Work with plug-in settings
- Work with plug-in latencies
- Work with Audio Units in Logic Pro for Mac
- Support for ARA 2 compatible plug-ins
- Use MPE with software instruments
- Use the Plug-in Manager
- Work with channel strip settings
- Surround panning
- Use the I/O Labels window
- Undo and redo Mixer and plug-in adjustments
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- Smart Controls overview
- Show Smart Controls for master effects
- Choose a Smart Control layout
- Automatic MIDI controller assignment
- Map screen controls automatically
- Map screen controls
- Edit mapping parameters
- Use parameter mapping graphs
- Open the plug-in window for a screen control
- Rename a screen control
- Use articulation IDs to change articulations
- Assign hardware controls to screen controls
- Compare Smart Control edits with saved settings
- Use the Arpeggiator
- Automate screen control movements
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- Live Loops overview
- Start and stop cells
- Work with Live Loops cells
- Change loop settings for cells
- How the Live Loops grid and Tracks area interact
- Edit cells
- Edit scenes
- Work in the Cell Editor
- Bounce cells
- Record a Live Loops performance
- Change Live Loops grid settings
- Control Live Loops with other devices
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- Global changes overview
- Control transposition with the Pitch Source parameter
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- Tempo overview
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- Smart Tempo overview
- Use free tempo recording
- Choose the Project Tempo mode
- Choose the Flex & Follow setting
- Use Smart Tempo with multitrack audio
- Work in the Smart Tempo Editor
- Improve the tempo analysis using hints
- Correct tempo analysis results using beat markers
- Protect Smart Tempo edits by locking a range
- Match audio recordings to the project tempo
- Match the tempo to an audio region
- Use audio file tempo information
- Record tempo changes
- Use the Tempo Interpreter
- Use the tempo fader
- Control project volume
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- Overview
- Add notes
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- Part box overview
- View score symbols
- Select score symbols
- Add notes and rests
- Add notes and symbols to multiple regions
- Add key and time signature changes
- Change the clef sign
- Add dynamic marks, slurs, and crescendi
- Change note heads
- Add symbols to notes
- Add trills, ornaments, and tremolo symbols
- Add sustain pedal markings
- Add chord symbols
- Add chord grids and tablature symbols
- Add bar lines, repeats, and coda signs
- Add page and line break symbols
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- Select notes
- Move and copy notes
- Change note pitch, duration, and velocity
- Change note articulations
- Quantize the timing of notes
- Restrict note input to the current key
- Control how ties are displayed
- Add and edit tuplets
- Override display quantization using tuplets
- Add grace notes and independent notes
- Delete notes
- Use automation in the Score Editor
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- Staff styles overview
- Assign staff styles to tracks
- Staff Style window
- Create and duplicate staff styles
- Edit staff styles
- Edit staff, voice, and assign parameters
- Add and delete staffs or voices in the Staff Style window in Logic Pro for Mac
- Copy staffs or voices in the Staff Style window in Logic Pro for Mac
- Copy staff styles between projects
- Delete staff styles
- Assign notes to voices and staffs
- Display polyphonic parts on separate staffs
- Change the staff assignment of score symbols
- Beam notes across staffs
- Use mapped staff styles for drum notation
- Predefined staff styles
- Share a score
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- Key commands overview
- Browse, import, and save key commands
- Assign key commands
- Copy and print key commands
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- Global Commands
- Global Control Surfaces Commands
- Various Windows
- Windows Showing Audio Files
- Main Window Tracks and Various Editors
- Various Editors
- Views Showing Time Ruler
- Views Showing Automation
- Main Window Tracks
- Live Loops Grid
- Mixer
- MIDI Environment
- Piano Roll
- Score Editor
- Event Editor
- Step Editor
- Step Sequencer
- Project Audio
- Audio File Editor
- Smart Tempo Editor
- Library
- Sampler
- Drum Machine Designer
- Step Input Keyboard
- Smart Controls
- Tool Menu
- Control Surface Install Window
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- Logic Pro projects
- Various windows
- Controller Assignments window
- Control bar
- Tracks area
- Global tracks
- Automation
- Live Loops grid
- Mixer
- MIDI Environment
- Piano Roll Editor
- Score Editor
- Event List
- Step Editor
- Step Sequencer
- Flex Time
- Audio File Editor
- Smart Tempo Editor
- Surround Panner
- Channel EQ
- Channel EQ
- Sampler
- Touch Bar shortcuts
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- Working with your control surface
- Connect control surfaces
- Add a control surface to Logic Pro for Mac
- Automatic assignment for USB MIDI controllers
- Grouping control surfaces
- Control Surfaces settings overview
- Modal dialog display
- Tips for using your control surface
- Supported control surfaces
- Software and firmware for Logic Pro for Mac
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- Environment overview
- Common object parameters
- Customize the Environment
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- Fader objects overview
- Use fader objects
- Play back fader movements
- Work with object groups
- Fader styles
- Fader functions: MIDI events
- Fader functions: range, value as
- Fader functions: filter
- Vector fader
- Special faders overview
- Cable switchers
- Meta event faders
- SysEx faders
- Work with SysEx messages
- Special functions
- Ornament objects
- MMC record buttons
- Keyboard objects
- Monitor objects
- Channel splitter object
- Physical input objects
- Physical input objects
- MIDI click objects
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- Use MIDI plug-ins
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- Arpeggiator overview
- Arpeggiator control parameters
- Note order parameters overview
- Note order variations
- Note order inversions
- Arpeggiator pattern parameters overview
- Use Live mode
- Use Grid mode
- Arpeggiator options parameters
- Arpeggiator keyboard parameters
- Use keyboard parameters
- Assign controllers
- Modifier controls
- Note Repeater controls
- Randomizer controls
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- Use Scripter
- Use the Script Editor
- Scripter API overview
- MIDI processing functions overview
- HandleMIDI function
- ProcessMIDI function
- GetParameter function
- SetParameter function
- ParameterChanged function
- Reset function
- JavaScript objects overview
- Use the JavaScript Event object
- Use the JavaScript TimingInfo object
- Use the Trace object
- Use the MIDI event beatPos property
- Use the JavaScript MIDI object
- Create Scripter controls
- Transposer controls
- Record MIDI to Track
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- Alchemy overview
- Alchemy interface overview
- Alchemy Name bar
- Alchemy file locations
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- Alchemy source overview
- Source master controls
- Import browser
- Source subpage controls
- Source filter controls
- Source filter use tips
- Source elements overview
- Additive element controls
- Additive element effects
- Spectral element controls
- Spectral element effects
- Pitch correction controls
- Formant filter controls
- Granular element controls
- Sampler element controls
- VA element controls
- Wide unison mode
- Source modulations
- Morph controls
- Alchemy master voice section
- Alchemy Extended parameters
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- ES2 overview
- ES2 interface overview
- ES2 integrated effects processor controls
- Use ES2 in Surround mode
- Extended parameters
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- Sample Alchemy overview
- Interface overview
- Add source material
- Edit mode
- Play modes
- Source overview
- Synthesis modes
- Granular controls
- Additive effects
- Additive effect controls
- Spectral effect
- Spectral effect controls
- Filter module
- Lowpass, bandpass, and highpass filters
- Comb PM filter
- Downsampler filter
- FM filter
- Envelope generators
- Mod Matrix
- Modulation routing
- Motion mode
- Trim mode
- More menu
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- Sculpture overview
- Sculpture interface
- Global parameters
- Amplitude envelope parameters
- Use the Waveshaper
- Filter parameters
- Output parameters
- Use surround range and diversity
- Define MIDI controllers
- Extended parameters
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- Studio Piano
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- Ultrabeat overview
- Ultrabeat interface
- Synthesizer section overview
- Filter section controls
- Distortion circuit controls
- Glossary
- Copyright
Work with plug-in latencies in Logic Pro for Mac
All plug-ins cause timing delays, known as latency, when processing audio. Small delays are not audible; however, the more processor-intensive a plug-in is, the bigger its latency will be. Those latencies can cause timing issues when playing back your project or when recording new tracks in your project. Logic Pro provides two types of settings, plug-in latency compensation and Low Latency Monitoring mode, that can solve those issues.
Plug-in latency compensation
In a project, different channel strips often have different plug-ins, resulting in a different overall latency for each channel strip. Some channel strips might also be routed to aux channel strips via sends containing plug-ins that could add even more latency. However, you can compensate for those latencies using plug-in latency compensation to ensure that the audio output is perfectly synchronized. Logic Pro detects the channel strip with the maximum latency, and delays the other channel strips in real time by an individual amount so that they all play back in sync. You can choose from three options for plug-in latency compensation: delaying the regions on individual tracks, delaying the audio signal on individual channel strips, or no latency compensation.
When plug-in latency compensation is turned on, there can be a slight lag between the moment you start playback and the moment the tracks start to play in sync, depending on the amount of latency being compensated.
Note: Plug-in latency compensation also applies to automation data and signals used in side-chain routing.
Tip: Move the pointer over a plug-in slot to show a help tag with the latency of that plug-in in samples and seconds (sec).
Low Latency Monitoring mode
When you sing into a microphone or play a MIDI keyboard, you hear your signal delayed when monitoring through a track that contains high-latency plug-ins or when the track is routed to aux channel strips with high-latency plug-ins in their signal path. This makes it difficult to perform with proper timing when recording on such a track. Instead of manually turning off the plug-ins on the track you are about to record, you can turn on Low Latency Monitoring mode; and Logic Pro automatically bypasses latency-inducing plug-ins that exceed a specific latency value and turns off any Aux sends on that track. See General Audio settings.
Low Latency Monitoring mode only affects the focused instrument track and any tracks on which the Input Monitoring or Record Enable buttons are active. The following happens on those tracks:
A plug-in is bypassed when its latency pushes the track’s total latency value above the set limit, and its plug-in button changes to gray with an orange text label.
Audio effect plug-ins with low latency are unaffected and remain active (blue button).
Every Send slot is turned off, and their Send button changes to gray with an orange text label.
A new “Low Latency Safe” option is available in the Send slot shortcut menu.
When this is selected, the Send slot remains active, which is useful when you’ve routed the track’s signal to a reverb that you want to hear during recording.
Note: Focused instrument tracks show the bypassed slots once you start the playback.
When Enable Complete Features is selected in Logic Pro > Settings > Advanced, plug-in latency compensation and Low Latency mode are available.
Important: In addition to the plug-in latencies, there are other components that introduce latencies. For example, MIDI controllers connected via Bluetooth, the input and output stage of your selected audio interface, or the I/O Buffer Size value. For details, see Audio Devices settings.
Turn on plug-in latency compensation
In Logic Pro, choose one of the following options from the Compensation pop-up menu in Logic Pro > Settings > Audio > General:
Audio and Software Instrument Tracks: If only audio or software instrument channel strips contain latency-causing plug-ins, choose this option. During playback, Logic Pro automatically shifts the regions on the individual tracks in real time to keep the audio output of all corresponding channel strips synchronized.
All: If aux or output channel strips also contain latency-causing plug-ins, choose this option. During playback, Logic Pro delays the audio streams of each channel strip individually to keep them all synchronized.
Tip: Use the key command Set Plug-in Latency Compensation Mode to switch between “All” and “Audio and Software Instrument Tracks.”
Turn Low Latency Monitoring mode on or off
In Logic Pro, do one of the following:
Click the Low Latency Monitoring Mode button in the control bar.
Note: By default, the Low Latency Monitoring Mode button does not appear in the control bar. To add this button to the control bar, see Customize the control bar.
Click the Low Latency Monitoring Mode checkbox in Logic Pro > Settings > Audio > General.
Use the key command Toggle Low Latency Monitoring Mode.
When you enable Low Latency Monitoring mode, the Limit slider in Logic Pro > Settings > Audio > General lets you determine the maximum amount of allowed latency across the entirety of the current track’s signal path (up to 30 ms). See General Audio settings.
WARNING: The sound may change when you turn on Low Latency Monitoring mode. Depending on the plug-ins in use, the change in sound can be anything from subtle to dramatic. If plug-ins being used do not exceed the total latency limit, there is no audible difference. Low Latency Monitoring mode is inactive when you bounce your project.
Reactivate a Send slot in Low Latency Monitoring mode
With Low Latency Monitoring mode enabled, all Send slots on a record-enabled channel strip are turned off, indicated by their gray buttons with orange text.
In Logic Pro, show the Mixer.
On the record-enabled channel strip, click the Send slot you want to reactivate, then choose Low Latency Safe from the shortcut menu.
The Send button changes to blue.
To deactivate the Send slot again, click the Low Latency Safe option in the shortcut menu to deselect it.