Apple Compressor (4.0) - Manual (Page 155)

Chapter 7 Advanced functions 155
If you applied a filter to a setting in the Batch window, you can view the results of filter
adjustments in the Preview window. The viewer in this window is split into original and
transcoded views of your media file so that you can see or hear the effects of your filter settings
before processing the batch (as long as the checkbox for that particular filter is selected). This
can be helpful when you’re applying multiple filters because it can be difficult to anticipate
how the filters will interact with each other. It’s a good idea to scan through the whole movie
to ensure that your changes are not too extreme for some scenes. For more information, see
Preview media as source or with settings applied on page 52.
Adjustments you make
can be viewed in the
Preview window.
Note: Depending on your system, the source media file type, and the number of filters applied,
the Preview window showing the filter settings may update at a lower frame rate than the
source frame rate.