The assignment
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The assignment
This template contains a mono audio file (drumkit.aif) that's just over four bars long. Take a glance in the Arrange window. 'That's odd. How is it that a four bar loop spans just over seven bars,' I hear you mumble. Well, that's because we don't yet know the tempo of the loop itself. Our tempo on the Transport bar shows 120 bpm, but the loop's tempo is obviously slower. Before we record anything, MIDI or audio, it's best to determine the real tempo.
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In the Sample Editor select a one bar section (more if you want, a one or two bar section will do the trick). Click on the start of the area you want to select, hold down the mouse button and move it to approximately where you want the section to end. A shaded selection appears (Figure P11.1).
Figure Figure P11.1. Audio selection
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Activate the Cycle icon and press Play to audition the selection. Fine-tune the boundaries by holding down the Shift key while adjusting the start and end points until the loop sounds accurate. Be sure that the selection is cycling smoothly.
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Turn the selected audio into a Region [Edit > Selection > Region]. New start and end points are inserted. The Audio Regions in the Arrange and Audio windows are adjusted accordingly .
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In the Arrange window move the Region back to 1.1.1.
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In the Arrange window set up a one bar cycle (or more, depending on your choice in Step 1).
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In the Sample Editor to find the real tempo use Functions > Adjust Tempo by Selection & Locators. A dialog box appears giving you the option to adjust the tempo globally or just from the beginning of the Region. Choose 'Globally.'
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The tempo on my version changed to 84.8920. Yours, almost certainly , will be slightly different.
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Save Song compare to project11/11.1.
Now, although the tempo came out as 84.8920 bpm, I happen to know because I recorded it! that the original tempo was exactly 85 bpm. So, for the following projects that use this audio file I have adjusted the tempo to just that.
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