Logic Pro User Guide for iPad
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- What is Logic Pro?
- Working areas
- Work with function buttons
- Work with numeric values
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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
- 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
- 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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- 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
Test Oscillator in Logic Pro for iPad
Test Oscillator is useful for tuning studio equipment and instruments. It can be inserted as an instrument or effect plug-in. It operates in two modes, generating either a static frequency or a sine sweep.
In Test Tone mode, a test signal is generated immediately when the plug-in is inserted. You can switch off the test tone by bypassing the plug-in or by activating Sine Sweep mode.
In Sine Sweep mode, a user-defined frequency spectrum tone sweep is generated when you tap the Sweep Trigger button.
To use Test Oscillator, choose Utility > Test Oscillator in an Instrument channel strip Instrument 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.
Test Tone mode parameters
Frequency knob and field: Set the frequency of the oscillator (the default is 1 kHz). You can also double-tap this field and enter a value ranging from 1 Hz to 22 kHz, exceeding the possible values that can be set with the knob. If you enter “1,” a 1 Hz test tone is the result.- Waveform buttons: Select the waveform to use for test tone generation. The Square Wave and Needle Pulse (Dirac) waveforms are available as either aliased or anti-aliased versions. The Sine and Square waveforms are bipolar. The Needle Pulse waveform is a unipolar impulse waveform that is always positive, which makes it a useful tool for analyzing polarity or phase issues. The noise waveforms are useful for “tuning” the room and speakers.
Anti Aliased button: Enable to use anti-aliased versions of the Square or Needle Pulse (Dirac) waves.
Decorrelated Noise button: Enable to change the phase when either White or Pink Noise is active. This alters the spatial characteristics of the noise signal.
- Level knob and field: Set the overall output level. This parameter is common to both test tone generator modes.
Dim button: Reduce the output level by 50%. This parameter is common to both test tone generator modes.
Sine Sweep mode parameters
On/off button: Activate sine sweep mode and disable test tone mode.
Time knob and field: Set the duration of the sine wave sweep.
Mode buttons: Choose a sweep curve—Linear or Log(arithmic).
Start/End Freq sliders and fields: Set the oscillator frequency for the beginning and end of the sine sweep.
Trigger button: Start the sine sweep of the spectrum set with the Start and End Frequency parameters.
Repeat buttons: Tap Single to play the sine sweep once or tap the infinity button to play the sine sweep indefinitely when you tap the Trigger button.
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