Logic Pro User Guide for iPad
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- What is Logic Pro?
- Working areas
- Work with function buttons
- Work with numeric values
- Undo and redo edits in Logic Pro for iPad
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- Intro to tracks
- Create tracks
- Create tracks using drag and drop
- Choose the default region type for a software instrument track
- Select tracks
- Duplicate tracks
- Reorder tracks
- Rename tracks
- Change track icons
- Change track colors
- Use the tuner on an audio track
- Show the output track in the Tracks area
- Delete tracks
- Edit track parameters
- Start a Logic Pro subscription
- How to get help
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- Intro to recording
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- Before recording software instruments
- Record software instruments
- Record additional software instrument takes
- Record to multiple software instrument tracks
- Record multiple MIDI devices to multiple tracks
- Record software instruments and audio simultaneously
- Merge software instrument recordings
- Spot erase software instrument recordings
- Replace software instrument recordings
- Capture your most recent MIDI performance
- Route MIDI internally to software instrument tracks
- Record with Low Latency Monitoring mode
- Use the metronome
- Use the count-in
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- Intro to arranging
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- Intro to regions
- Select regions
- Cut, copy, and paste regions
- Move regions
- Remove gaps between regions
- Delay region playback
- Trim regions
- Loop regions
- Repeat regions
- Mute regions
- Split and join regions
- Stretch regions
- Separate a MIDI region by note pitch
- Bounce regions in place
- Change the gain of audio regions
- Create regions in the Tracks area
- Convert a MIDI region to a Session Player region or a pattern region
- Replace a MIDI region with a Session Player region in Logic Pro for iPad
- Rename regions
- Change the color of regions
- Delete regions
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- Intro to chords
- Add and delete chords
- Select chords
- Cut, copy, and paste chords
- Move and resize chords
- Loop chords on the Chord track
- Color chords on the Chord track
- 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
- Create fades on audio regions
- Extract vocal and instrumental stems with Stem Splitter
- Access mixing functions using the Fader
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- Intro to Step Sequencer
- Use Step Sequencer with Drum Machine Designer
- Record Step Sequencer patterns live
- Step record Step Sequencer patterns
- Load and save patterns
- Modify pattern playback
- Edit steps
- Edit rows
- Edit Step Sequencer pattern, row, and step settings in the inspector
- Customize Step Sequencer
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- Intro to mixing
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- Channel strip types
- Channel strip controls
- Peak level display and clipping
- Set channel strip volume
- Set channel strip input format
- Set the output for a channel strip
- Set channel strip pan position
- Mute and solo channel strips
- Reorder channel strips in the Mixer in Logic Pro for iPad
- Replace a patch on a channel strip using drag and drop
- Work with plug-ins in the Mixer
- Search for plug-ins in the Mixer in Logic Pro for iPad
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- Effect plug-ins overview
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- Instrument plug-ins overview
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- ES2 overview
- Interface overview
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- Modulation overview
- Use the Mod Pad
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- Vector Envelope overview
- Use Vector Envelope points
- Use Vector Envelope solo and sustain points
- Set Vector Envelope segment times
- Vector Envelope XY pad controls
- Vector Envelope Actions menu
- Vector Envelope loop controls
- Vector Envelope point transition shapes
- Vector Envelope release phase behavior
- Use Vector Envelope time scaling
- Modulation source reference
- Via modulation source reference
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- Sample Alchemy overview
- Interface overview
- Add source material
- Save a preset
- Edit mode
- Play modes
- Source overview
- Synthesis modes
- Granular controls
- Additive effects
- Additive effect controls
- Spectral effect
- Spectral effect controls
- Filter module
- Low, bandpass, and highpass filters
- Comb PM filter
- Downsampler filter
- FM filter
- Envelope generators
- Mod Matrix
- Modulation routing
- Motion mode
- Trim mode
- More menu
- Sampler
- Studio Piano
- Copyright
Correlation Meter in Logic Pro for iPad
Correlation Meter displays the phase relationship of a stereo signal. When added to an output channel strip, it helps you determine whether your stereo mix has a wide stereo image or a narrower, more mono-sounding image. By soloing a specific stereo track routed to the output channel strip, you can quickly check the phase of stereo signals, such as drum overheads or piano stereo mics.
As a tool for checking mono compatibility, the meter indicates whether your mix or a section of it contains out-of-phase content, which, when played back on a mono speaker, can alter the sound or entirely cancel the mix.
To add Correlation Meter to your project, choose Metering > Correlation Meter in a channel strip Audio Effect plug-in menu or the Plug-ins area. See Intro to plug-ins. Also see Add, replace, reorder, and remove plug-ins in the Plug-ins area and Work with plug-ins in the Mixer.
Correlation Meter parameters
The scale of Correlation Meter ranges from –1 to +1.
Correlation Meter: Displays the phase relationship between the left and right channels of a stereo signal.A correlation of +1 (the far right position, in green) means that the left and right channels correlate 100%—they are completely in phase. This results in a mono signal.
A correlation of 0 (the center position) indicates the widest permissible left/right channel divergence, resulting in a wide stereo effect.
Correlation values lower than 0 (orange to red) indicate that out-of-phase material is present, which can lead to phase cancellations if the stereo signal is played through a mono speaker, changing the sound of your mix.
Note: When plug-ins that offer stereo width or spread parameters are inserted before Correlation Meter in the signal path, the meter may show negative values if your plug-in uses a width or spread parameter value above 100%.
A correlation of –1 (the far left position, in red) indicates that the left and right channels are identical but with opposite polarity, which mutes the entire stereo signal when it’s played back in mono.
The vertical white line indicates the momentary correlation value. It resets to 0 when the signal stops for two seconds. The yellow to green bar represents the movement of the white line over the last few seconds, indicating the correlation range of your stereo signal.
A vertical orange to red line behaves as a peak indicator for values below 0. It shows the maximum divergence from 0.
Reaction pop-up menu: Choose an item from the menu to set the reaction time (update speed) of the meter display.
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