7

414 Chapter 11 Sample Editor
Time Correction
This parameter allows you to compensate for any time delays that may occur when
external samplers or synthesizers are triggered by MIDI notes. These time delays are
sometimes very noticeable, particularly if the connected device is playing a MIDI
Region (that was quantized with an Audio-to-MIDI groove template) at the same time
as the original audio material. You should be able to compensate for this effect by
using settings between −20 ms and 0 ms.
Instrument Type
This pull-down menu (Drums Slow) contains various presets for the Audio-to-MIDI
parameters, which are suited to specific types of audio material. You can use these
presets as starting points for your own processing.
Your own parameter settings are stored in the Logic Preferences file.
At the bottom of the Sample Edit window, you’ll see three fields labeled: Audio Qua,
Basis Qua and Result Qua.
Audio Qua
Displays the quantization points identified in the audio file.
Basis Qua
Shows the quantization points selected as the Basis Quantize.
Result Qua
Shows the quantization positions in the new groove template, which are produced by
the combination of the two values above.
Clicking on an audio trigger point will prevent it from being transferred to the
template. These manually selected points will be “grayed out”.
When you click Try, Logic will apply the new groove template to all selected MIDI
Regions, allowing you to preview the result.
Adjust the parameters until you are happy with the result, and then click Use.
Clicking Use saves the new groove template, and installs it in the current song. It then
appears at the bottom of the list in the Quantize pull-down menu (the menu found in
the Region parameters of the Arrange window, and also in the Matrix and other editors
that allow quantization).
You should switch off the Edit > Search Zero Crossings option in the Edit menu of the
Sample Editor when using this function.