Adobe Premiere Pro CS6 - Manual (Page 268)

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Render a preview file for a section of a sequence setting In and Out points:
1. Set In and Out points to mark the area you want to preview.
2. Choose Sequence, and select one of the following:
Render Effects In to Out Renders the sections of the video tracks lying within the In and Out points containing a red render bar.
Alternatively, press Enter.
Render In to Out Renders the sections of the video tracks lying within the In and Out points containing either a red render bar or a yellow
render bar.
Render Audio Renders a preview file for the sections of the audio tracks lying within the work area.
Note: You can set Premiere Pro to render the audio tracks whenever you render the video tracks. For more information, see Render audio
when rendering video.
The rendering time depends on your system resources and the complexity of the segment.
These options are not available if the work area is enabled.
To maximize the quality of motion in rendered preview files, check the Maximum Render Quality option in Sequence Settings. For more
information, see General settings (CS5) - Settings (CS5.5 and later).
Render audio when rendering video
By default, Premiere Pro does not render audio tracks when you select either Sequence > Render Effects In Work Area, or Sequence > Render
Entire Work Area. However, playback may suffer when the data throughput of your disk drive cannot sustain the flow when mixing multiple
channels of audio and audio in a complex sequence. You can change this default so that Premiere Pro automatically renders audio previews
whenever it renders video previews.
1. Select Edit > Preferences > General (Windows) or Premiere Pro > Preferences > General (Mac OS).
2. Select or deselect Render Audio When Rendering Video.
3. Click OK.
Work with preview files
When you render previews, Premiere Pro creates files on your hard disk. These preview files contain the results of any effects that Premiere Pro
processed during a preview. If you preview the same work area more than once without making any changes, Premiere Pro instantly plays back
the preview files instead of processing the sequence again. Premiere Pro stores the preview files in a folder you can specify. Similarly, preview
files can save time when you export the final video program by using the processed effects already stored.
Note: Adobe Media Encoder does not automatically use Premiere Pro preview files for encoding. To make use of the Premiere Pro preview files,
you must select the Use Previews option in Adobe Media Encoder for each encoding process.
To further save time, Premiere Pro maintains existing preview files whenever possible. Preview files move along with their associated segment of a
sequence as you edit your project. When a segment of a sequence is changed, Premiere Pro automatically trims the corresponding preview file,
saving the remaining unchanged segment.
When completely done with a project, delete preview files to save disk space.
Use preview files when rendering
In the Export Settings dialog box, check Use Previews.
Delete preview files
1. With a Timeline panel active, do one of the following:
To delete the render files only for a range of clips, adjust the Work Area bar so that it spans only the desired range. Then, choose
Sequence > Delete Work Area Render Files. Those preview files which have any part of their associated clip within the work area will be
deleted.
To delete all the render files for a sequence, choose Sequence > Delete Render Files.
You can set a keyboard shortcut for Delete Render Files and Delete Work Area Render Files.
2. When you are prompted, click OK.
Play a sequence from start to finish
In the Program Monitor, click the Play In To Out button .
Scroll a sequence during preview
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