Apple Compressor (4.0) Manual de usuario descargar pdf (Pagina 54)

Chapter 4 Assign settings and preview media 54

This feature is important if you’re using the Dolby Digital Professional encoder because you

cannot preview the encoder’s settings in real time in the Preview window. Instead, you can add

the encoded AC-3 les to a batch and play them to verify that the encoder’s settings produced

good results. For information about creating a short test clip for this purpose, see Transcode a

portion of a clip on page 57.

Preview a clip with an assigned setting

The Compressor Preview window lets you see the eects of your setting—such as lters and frame

resizing—and make adjustments to these attributes while previewing the media le in real time.

1 If the Preview window is not shown, open it by choosing Window > Preview.

Tip: To open the clip in the Preview window in one step, double-click the target (that contains

the setting) of a job in Batch window.

2 Do one of the following:

•

Choose a setting from the Batch Item pop-up menu (the indented setting names, not the

source lenames).

•

Click the Batch Item selection buttons until the clip with a setting appears in the pop-up menu.

•

Select the clip’s setting in its job in the Batch window.

Both Source View and Setting View buttons are active, so you can switch between these two

views. Because you selected a setting, you can use the split-screen slider and cropping boundary

in the Preview window.

The opening frame of the selected source media le appears in the Preview window, and the title

of the selected setting appears in the Batch Item pop-up menu. The left half of the screen displays

the source media le in its original form (Source view) and the right half displays what the output

image will look like with selected lters and other setting attributes applied to it (Output view).

Output view

Batch Item

selection buttons

Source view

Batch Item pop-up menu

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Apple Compressor (4.0) Manual de usuario Pagina 54