10.6

377Logic Pro Instruments
• Unison pop-up menu: Set the number of unison voices or turn unison mode off.
• Random Detune field: Set the amount of random detuning applied to each voice. Use this
parameter to simulate the tuning drift of analog synthesizers or to thicken the sound.
Random Detune is also effective when you are emulating various stringed instruments.
• Used Voices field: Shows the number of playing voices in real time.
Use Sampler Unison, Mode, and Polyphony parameters
You will find all parameters discussed in this section in the Synth Details slide-out pane.
Click the Details button at the top-right of the Synth pane if it is not visible.
In Unison mode, multiple voices are played when you play a key. You can use this to
achieve a richer sound, particularly when you also use the Random Detune parameter
to slightly detune each voice. This is ideal when you are emulating classic analog
synthesizers, and is also useful for stringed instruments.
You can use the Mode pop-up menu to determine the keyboard mode. This changes the
way Sampler responds when you play one or multiple notes on your keyboard.
Voices are equally distributed in the panorama field and are evenly detuned. You can use
the Random Detune field to determine the amount of tuning deviation between voices.
Note: The number of voices actually used for each note you play increases with the number
of layered sample zones. For example, a sampler instrument that contains four layered zones
will use four voices when you play a key. This is shown in the Used Voices field in real time.
Use monophonic unison mode
In the Synth Details slide-out pane of Logic Pro Sampler:
1. Choose Mono or Legato from the Mode pop-up menu, depending on the keyboard mode
you want to use.
2. Click the Unison button.
The intensity of detuning—voice deviation—depends on the value you set with the
Random Detune field. See Sampler Synth Details.
Use polyphonic unison mode
In the Synth Details slide-out pane of Logic Pro Sampler:
• Choose the number of voices from the Mode pop-up menu.
In Poly/Unison mode, each note you play is effectively doubled. These two voices are
heard when you play each note.