12

7.8 The PAL Menu

interlaced video in the camera.

The supported monitors are consistently Progressive Scan monitors, as they stem not from the video field but from the computer use.

In this menu, you can use the left/right arrows to switch between `60 Hz monitor´ and `50 monitor´.

If the connected monitor supports a frame rate of 50 Hz, please select `50 Hz monitor´ so that PAL videos can be played in 50 Hz mode.

If the monitor only supports 60 Hz, it is necessary to select `60 Hz monitor´ (this is also the setting by default).

In this case, the PAL signal is displayed with the aid of interpolation and is rendered `up´ to the required 60 Hz.

The video must therefore be rendered into a Progressive video from its Interlaced origin to avoid artefacts. Normally, this results in a video with 25 or 30 frames (Hz), similar to cinema movies. This picture is somewhat sharper than a normal (interlaced 50/60 Hz) video but it also results in a much more jerky video.

The HDV-Recorder creates pictures `in-between´ and displays the 1080i pictures in full resolution and at the same time – at the full frame rate of 50 or 60 Hz (instead of 25 or 30). The result is a very fluent video in full resolution and without interlacing artefacts.

7.9 The Display Menu

In this menu, use the left/right arrow keys to set the resolution of the monitor. The change only becomes operational once you leave the menu with the Exit menu item.

The text `Keep display settings?´ appears. If you do not confirm this question with `Yes´ within 15 seconds, the display mode automatically returns to the previously used one. This is necessary

if you accidentally select a display mode not supported by your monitor.

Note: Pressing the Exit key exits the menu without affecting the display.

8 Super-De-Interlacing

In 1080i Mode, the video is stored as an

9. Rendering from 50 to 60 Hz

Not all monitors support the display of PAL videos at 50 Hz. Some monitors process a DVI/ VGA signal at 50 Hz but still render the video internally from 50 Hz to the refresh rate of the LCDs’ 60 Hz. This occurs easily and leads to a very jerky video in PAL.

The HDV-Recorder is, however, capable of rendering the frames in-between online to the required 60 Hz and thus to allow for a display of the video with a considerably more fluent appearance on the monitor.

10.Resetting and setting the monitor

After installation, the default setting for the monitor is the 800x600 pixel resolution. PAL display is set to 60 Hz so that PAL videos can be shown at 60 Hz rather than 50 Hz.

We have opted for this setting so that any monitor can support this mode and so that any monitor can be used to operate on. If, for