Apple Logic Pro 7 User Manual download pdf (Page 601)

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Chapter 18 Tempo 601

Stretch Existing Tempo Curve

This function stretches or compresses an existing tempo curve. The Position or Time

values are used to define the start point of the Region that you want to change. You

can then enter either the new end point of the tempo curve as a bar position or SMPTE

value, or set a Stretch value for the curve (as a percentage).

Thin Out Existing Tempo Changes

Position or Time defines the start and end points of the area to be processed. Density

determines the number of tempo events that will remain per bar after processing. You

can select values between one per bar (1/1) and eight times per bar (1/8).

Randomize Tempo

Position or Time defines the start and end points of the area to be processed.

Randomize determines the amount of deviation from the current tempo, in beats per

minute (bpm).

Density defines how often the new tempo events will occur. You can select values

between one per bar (1/1), and eight times per bar (1/8).

Tempo Interpreter

The computer keyboard and/or incoming MIDI events can be used to set the

sequencer tempo. Put another way, Logic allows manual synchronization (also known

as “human sync”).

The Tap Tempo key command must be assigned to a particular key (any key can be

used), or to a particular MIDI event in the Key Commands window.

The sync is fairly loose, in that if the manual sync impulses stop coming in, the

sequencer continues at the last tempo it received.

If you have an Unitor, a Mark Of The Unicorn interface (a MIDI Time Piece or MIDI

Express), you can convert percussive audio signals into MIDI notes. This feature lets you

use (say) a bass drum track (either live or from tape), to control Logic’s tempo.

You can enter manual sync mode in the following ways:

• manually, using the Sync menu;

• automatically in auto sync mode, if Logic encounters a Tap Tempo command.

The parameters that control Logic’s response to tap tempo commands can be found in

the Tempo Interpreter window.

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Apple Logic Pro 7 User Manual Page 601

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