Cakewalk // Documentation // SONAR // Splitting beats into clips
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Clicking the Split Beats Into Clips button on the AudioSnap palette splits a selected AudioSnap-enabled clip into new clips starting at every enabled transient marker. The main reason you might want to do this is to align a clip with a new tempo or quantize it, without stretching the audio. Once you split a clip at its transients, you can move the new clips by dragging or quantizing so that they are aligned the way you want them to be. The advantage is that moving clips instead of transient markers does not stretch any audio, so that the original sound quality is unchanged. The possible disadvantage is that you can create gaps between the new clips when you move them. However, the Quantize, Groove Quantize, and Fade Selected Clips dialogs all have an option to automatically fill in the gaps. This is the Fill Gaps, XFade between Audio Clips option in the Fade Selected Clips dialog box, and is the Auto XFade Audio Clips option in the Quantize and Groove Quantize dialogs. Filling the gaps is accomplished automatically by “rolling out” the first clip’s right edge and the second clip’s left edge to create a crossfade. This option will often be used when quantizing drum parts, which results in smooth-sounding audio without introducing phase problems.
Note: When you align clips on multiple tracks, it is necessary to split and/or quantize all clips at the exact same position in order to avoid phase problems. In order to do so, it is necessary to establish a common, or master, transient pool that all tracks can reference. The Merge and Lock Markers command will use the transient pool as a reference, and insert identical transient markers on all selected clips. You can then use the Split Beats Into Clips button to split clips at audio beats.
5.
Right-click a selected clip, and choose Pool > Apply transient pool markers on the pop-up menu.
3.
Click the Split Beats into Clips button .
4.
Click the Quantize button in the AudioSnap palette.
The Quantize dialog box appears:
5.
Make sure that Audio Clip Start Times is selected, and that (for this example) Sixteenth is selected in the Duration field. Leave the Auto XFade Audio Clips option unchecked for now, and click OK. Let’s zoom in and look at the quantized clips:
A. Crossfades
8.
If you don’t want wide gaps to be filled in, you can enter a number of up to 200 milliseconds in the Max Gap field. Any gap that is wider than the number in this field will not be filled in.
The Fade Selected Clips dialog box has the Fill Gaps, XFade between Audio Clips radio button, the XFade <number goes here> ms field, and the Max Gap field.
Figure 309. The Fade Selected Clips dialog box.
2.
Click the Track view Clips menu and choose Fade Clips to open the Fade Selected Clips dialog box.
3.
Enable the XFade between Audio Clips radio button, and set any options you want in the XFade <number goes here> ms field, and Max Gap field.
4.
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