10.6

390Logic Pro Instruments
To explain, raising the slider value reduces the envelope minimum amplitude, with
the difference being dynamically controlled by keyboard velocity. For example, when
you set the Vel slider to 25%, the minimum envelope amplitude is reduced to 75%.
The remaining 25% is added in response to the velocities of keys you play. So, a key
played with a zero velocity results in an envelope amplitude of 75%. A key played
with a MIDI velocity value of 127 will result in an envelope amplitude of 100%. When
you raise the Vel slider value, the minimum amplitude decreases even further.
Sampler modulation reference
Sampler modulation targets
The table outlines targets you can choose in the Target pop-up menus of the Mod Matrix
pane which can be modulated in realtime. Also see Sampler modulation sources and
Sampler modulation via sources.
Target Comments
--- or None Disables the target.
Sample Select Modulates the sample (zone) that is played.
By default, Sample Select is controlled by velocity—through the default
Velocity to Sample Select modulation routing. This means that the
received note velocity value determines which of the layered zones (in
different velocity ranges) is heard as you play the keyboard softer or
harder.
You aren’t limited to using velocity, however, to determine which sample
is played. You could assign the modulation wheel source to the Sample
Select target or use both velocity and the modulation wheel.
If you choose a continuous controller such as the modulation wheel, you
can step through the velocity layers during playback. If you do this, use
the crossfade (Xfade) parameters in the Mapping and Zone panes to
create smooth transitions between velocity split points.
When you use multiple modulation sources, be aware that these can cause
all velocity layers to run simultaneously—using up as many voices as there
are layered zones. In cases where you’re using multiple Xfades, Sampler
needs to be prepared to play any velocity layer in parallel, in order to
perform a realtime crossfade. To allow for smooth crossfades, this means
that all velocity layers need to be active.
Bit Resolution Modulates the bit depth. This lets you create lo-fi sound effects. For
example, using an envelope to make a sustained sound break up over time.
Sample Start/End Modulates the sample start or end time. This allows you to trigger a
drum loop partway through, for example. Modulation of both could create
interesting chopping or semi gated effects.
Loop Start/End Modulates the loop start or end time. This allows you to cycle different
sized portions of a drum loop, for example.
Loop Position Modulates the loop position. This moves the entire looped portion of the
sample without changing the loop length.
Flex Speed Modulates the Flex Speed parameter value, when Flex is enabled. You
could use this to double or halve the synchronized playback speed of
audio, enabling creative rhythmic effects.