Apple Logic Express 8 - Manual (Page 482)

482 Chapter 19 Quantizing MIDI Events
 Q-Velocity: This parameter (expressed as a percentage) determines the amount that
the velocity values of quantized notes are affected by the velocity values of a
template MIDI region (see “
Creating Groove Templates ” on page 485). At a value of
0%, the notes retain their original velocity. At 100%, they adopt the velocity values of
the template. Negative values alter the velocity, making the deviation from the
template even greater.
 Q-Length: This parameter (also expressed as a percentage value) determines how the
lengths of quantized notes are affected by the equivalent note lengths (notes at the
same position) of a template MIDI region. A value of 0% has no effect, while at 100%,
the notes adopt the exact note lengths of the template region. Negative values alter
note lengths further, resulting in a more significant deviation from the template.
Making Quantization Permanent
In the same way that other region parameters can be normalized, the quantization
settings can also be applied permanently to one or more regions. The Apply
Quantization Settings Destructively function is especially well suited to pre-
quantization.
As an example, if a recorded MIDI region cannot be quantized to a 16D Swing value
without producing a few incorrectly timed notes, quantize it to 1/16th notes and then
use Apply Quantization Settings Destructively. You can now use swing quantization on
this cleaned-up version of the MIDI region.
As another example: If you are recording a hi-hat pattern consisting of 1/16 notes and
one single 1/32 note, first play the rhythm (quantized to 1/16 notes) without the 1/32
note and choose Apply Quantization Settings Destructively. You can now raise the
Quantization parameter value to 1/32 notes, and add the extra note without incorrectly
quantizing any badly-played 1/16 notes.
To permanently quantize a region:
1 Choose the desired quantization settings (including extended region parameter
quantize options, if desired).
2 Choose the MIDI > Region Parameters > Apply Quantization Settings Destructively
command, or use the equivalent key command (default: Control-Q).
Note: Once this is done, it is impossible to revert to the original recording, unless you
use Undo immediately after performing the operation (or use the Undo History).