10.6

378Logic Pro Instruments
Change the keyboard mode
A polyphonic instrument, such as an organ or piano, lets you play several notes
simultaneously. Brass or reed instruments are monophonic, which means that you can
play only one note at a time. You can choose an appropriate keyboard mode for the type
of instrument that is loaded. You are also free to use a monophonic mode for polyphonic
instruments such as pianos or guitars, which allows playing styles that are not possible
with these polyphonic instruments.
In the Synth Details slide-out pane of Logic Pro Sampler:
• Choose Legato, Mono, or Poly from the Mode pop-up menu.
• In Legato mode, only one note can be played at a time. The envelope generators are
retriggered only if you play staccato—releasing each key before playing a new key.
• In Mono mode, sample playback and envelopes are always retriggered regardless if
you play staccato, or in a legato style—play a new key while holding another.
• In Poly mode, you can play several notes simultaneously.
Note: In many classic monophonic analog synthesizers, the behavior in Legato mode is
referred to as single trigger, while Mono mode is referred to as multi trigger.
Set the number of keys that can be played simultaneously
In the Synth Details slide-out pane of Logic Pro Sampler:
• Drag vertically in the Polyphony field to determine the maximum number of notes that
you can play.
When you play the keyboard, the Used Voices field shows the number of voices in use.
The number of voices actually used for each note you play increases with the number of
layered sample zones.
Crossfade between Sampler filters
You can use Filter Blend to affect Sampler signal flow. The figure illustrates the signal flow
between the signal mix stage (pre-Filter) and the dynamic stage (the Amplifier). The signal
flow through the filters and the filter overdrive circuit (the Drive parameter) are dependent
on the Filter Blend setting. See Sampler Synth pane.
In a parallel configuration, the overdrive/distortion circuit—the Drive parameter—is always
wired before the filters. The filters receive a mono input signal from the output of the
overdrive circuit. The outputs of both filters are mixed to mono via Filter Blend.
The Filter Blend parameter is available as a modulation target in the Mod Matrix pane. You
can use manual control sources, such as the modulation wheel, to change the filter blend;
but the Filter Blend target can also be used creatively, to rapidly switch or smoothly fade
between the two filters, using an LFO or velocity, or both, as a modulation source.