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Logic Pro 9 User Manual - Help Library - Apple

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If <strong>Logic</strong> <strong>Pro</strong> “hears” a Tap Tempo command, it automatically follows this tempo.<br />

The parameters that control how <strong>Logic</strong> <strong>Pro</strong> responds to tap tempo commands can be<br />

found in the Tempo Interpreter window.<br />

To open the Tempo Interpreter window<br />

Do one of the following:<br />

µ Choose Options > Tempo > Tempo Interpreter (or use the Open Tempo Interpreter key<br />

command).<br />

µ Control-click the Sync button in the Transport bar (if visible), and choose Open Tempo<br />

Interpreter from the shortcut menu.<br />

Note: Only the selected software instrument track, and all external MIDI tracks, can play<br />

when the Tempo Interpreter window is open.<br />

The following parameters are in the Tempo Interpreter window.<br />

• Tap Step: This parameter sets the note value that <strong>Logic</strong> <strong>Pro</strong> assigns to manual taps. You<br />

will achieve the best results with larger, rather than smaller, values. 1/4 note usually<br />

works well.<br />

• Window: This parameter determines the time span (or window) that tap notes can be<br />

entered (set in ticks, or 1/3840 note). Only taps made within this time window are used<br />

to determine the tempo. Any taps outside it are ignored.<br />

• The narrower the window, the more effectively <strong>Logic</strong> <strong>Pro</strong> is able to withstand the<br />

influence (on the tempo) of any taps that fall between the note values—set with the<br />

Tap Step parameter.<br />

• The larger the window is set, the easier it becomes to create drastic tempo changes.<br />

• If you set the window parameter to 0, the tap window disappears altogether, and<br />

all taps are accepted as tempo-determining information. <strong>Logic</strong> <strong>Pro</strong> also comes to a<br />

halt, if taps are not generated.<br />

1038 Chapter 33 Advanced Tempo Operations

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