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Working with loops and Groove ClipsWorking with Groove Clip audio ► Creating and editing Groove Clips

Any audio clip can be converted to a Groove clip. Groove clips contain tempo, beat, and pitch information which SONAR uses to stretch and transpose the clips to match the project. Most Groove clips are loop-enabled, meaning that you can use the mouse to drag clip repetitions in the Track view. Groove clips can be either loop-enabled or not, although they usually are. When a Groove clip is loop-enabled, its edges appear beveled. It is sometimes desirable to create clips that follow the project’s tempo and key, but are not intended to loop. The following is a list of the attributes contained in a Groove clip:
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Beats in clip. The number of quarter notes in a clip. A four measure clip in 4/4 time should have 16 beats. When you enable looping for a clip, SONAR calculates the number of beats in the clip using an algorithm. This calculation is very often accurate, but in some cases, for instance when the clip has a very slow or very fast tempo or if the clip has an unusual number of beats, then the number of beats in a clip may have to be edited manually in the Beats in clip field.
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Original tempo. The original tempo of the recording. SONAR uses the original tempo to adjust to your project’s tempo. The original tempo must be specified for stretching clips.
Note: When you loop-enable a clip, SONAR calculates the original tempo of the clip, and unless the clip’s length is in exact beat or measure increments, the original tempo that SONAR calculates may vary from the recorded tempo. These fluctuations are usually quite small and do not affect the quality of the Groove clip you create.
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Reference note. The original key of the recorded clip. SONAR uses the Reference note when it transposes Groove clips to match your project’s pitch.
When you open a clip in the Loop Construction view, SONAR determines the number of beats in the clip. In some cases the beat value may not be correct. The beats in clip value can only be changed if the clip is loop enabled.
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Click the Plus or Minus button to the right of the Beats field until the correct value is displayed.
When creating a new Groove clip, SONAR sets the clip’s tempo to the current project tempo. To ensure proper stretching behavior you must set the value in the BPM field to the tempo at which you recorded the clip. The tempo value of a clip can only be changed if the clip is stretch-enabled.
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Click the Plus or Minus button to the right of the BPM field until the correct value is displayed. For more precise tempos you can double-click in the BPM field and enter a tempo.
Table 119.  
Click the Resolution button and select the desired note resolution in the drop-down list. The available settings range from whole notes to 64th notes. Selecting quarter notes, for example, will create four markers per measure.
Drag the Threshold slider to the desired value. The larger transients in the clip will be flanked by markers.
Move your mouse to the space above the Time Ruler and double-click to add a marker. Click and drag the marker, if necessary, so it aligns with the beginning or end of a transient.
Note: You can use any or all of these methods to slice a clip. If you adjust both the Resolution and Threshold values, two markers may be placed right next to each other. If these markers are too close, the markers will automatically merge. Manual markers will not automatically merge.
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Click the Pitch button.
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If the Pitch button is enabled, click it to disable it.
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In the Coarse Pitch field, enter the number of semitones you want to transpose the clip by. A negative number in the Coarse Pitch field transposes a clip down. A positive number in the Coarse Pitch field transposes the clip up.
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If the Pitch button is enabled, click it to disable it.
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In the Pitch (fine) field, enter the number of cents you want to adjust the pitch. You can enter a number from -50 (transpose the pitch down by a quarter tone) to 50 (transpose the pitch up by a quarter tone).
Table 120.  
Move the mouse cursor to the Markers bar, at the beginning of a transient and double-click.
Select the Erase tool and click on a marker.
Click the Slice menu and select Reset Markers.

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