Epiphan Pearl - Manual (Page 168)

Pearl User Guide Remove black bars (matte) from the video
2. Login as admin.
3. Select a channel; the menu expands.
4. Click Sources; the Sources page opens.
5. Find the name of the media source used for the channel.
6. Click this source under the Sources menu.
7. Make note of the input signal resolution.
8. Click the channel's Encoding ; the Encoding page opens.
9. Scroll to the frame size parameter.
10. The simplest option is to select Use current signal resolution as frame size and click Apply. You can
alternatively select it briefly to note the current video signal resolution, then deselect it and follow the
steps below.
11. Look for the source aspect ratio in the list of aspect ratios provided.
a. If the source resolution is on the list, choose another resolution on the same line (i.e. with the
same aspect ratio).
b. If the source resolution is not on the list, use a calculator to get a factor of the source resolution
and enter it in the Frame size fields.
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