You can select one ore more bandwidths for the export into the RealMedia format. If more than one bandwidth is selected, the RealServer selects the highest possible bandwidth automatically during replay (SureStream technology). The three preselections cover the most common bandwidths and should be sufficient.The more bandwidths are selected the more data must be stored on the RealServer and the conversion takes much longer!

Depending on the recording (with or without video resp. Screen Recording clips) the Publisher automatically selects the optimal setting for the video quality. With the user-defined settings you can adapt the vieo quality to your conditions:

• "normal" can be used for the combination of Screen Recording clips and accompanying video.
• "smoothest motion" is best for photorealistic videos.
• "sharpest image" makes sense when your presentation only contains Screen Recording clips. It enhances the contrast in the clips.
• "slideshow" leads to a sequence of fixed images which change frome time to time. This setting is reasonable when only a small bandwidth is available.

Since LECTURNITY version 1.6.1.p1 no system profiles are used any more for the conversion into the Windows Media format. Instead of that a indivdual profile is created temporarily for each document to be converted.The Publisher loads the system profiles installed on your system and automatically selects the best profile for your recording. A system profile contains information on bandwidth, video resolution and used codecs for audio and video. In the pull-down menu you can also select your own profiles (if any), which can be created e.g. with the Windows Media Encoder. If your recording does not contain any Screen Recording clips the pull-down menu for clip profiles is disabled. Special system profiles exist for Screen Recording clips. These profiles are only available for Windows Media Video 8 and higher. You might have to install the Windows Media Video 8 codecs. The Publisher automatically presents you with the option to do so if you do not have them already.

If you select the option "compatible with Windows Media Player 6.4", the pull-down menu only shows system profiles for Windows Media formats which can be replayed under Windows 95 and Windows NT 4.0 (and of course newer Windows versions).A video profile contains codecs for audio and video. Be sure that you select an audio profile if your recording does not contain a video!

If you select a profile which contains more than one bandwidth, much more data is produced which must be storend on the Windows Media Server and the conversion takes much longer!

In the dialog "Extended settings", reachable by pressing the button "Extended..." in the dialog "Bandwidth selection" (RealMedia) resp. "System profiles (Windows Media).

• Display pointer: The feature "display pointer" during the replay of a presentation requires slightly more memory on the hard disc. The influence on bandwidth and preload time is very small and can be ignored.
• Slide dynamics: Slide synamics (graphical annotations, etc.) requires an additional high amount of memory on the hard disc. Depending on the available bandwidth, this leads to long(er) preload times.
• Data compression: if the option "Slide dynamics" (see above) is selected, then "data compression" should be selected as well. This reduces the additional amount of memory and the preload time. A little loss of quality is possible when the slides are resized and the "Flexible window layout" is activated.If the bandwidth you use is smalll and/or your presentation contains many graphical annotations, then "slide dynamics" should be disabled! The preload time will be very long and the browser cache requires a lot of memory.

This tab doesn't exist any more since LECTURNITY version 1.6.1.p1, because the layout of the WebPlayer has changed completely.in the dialog "Extended settings", which is reachable by pressing the button "Extended..." in the dialog "Bandwidth selection" (RealMedia) resp. "System profiles (Windows Media).

• Flexible window layout: Slides and the embedded player can be resized arbitrarily (Internet Explorer only), without any influence on the required bandwidth.

• Adapt window layout to the chosen video resolution: The video is displayed in full resolution. Otherwise the video is rescaled upon replay to the standard resolution of 320×240. This has no influence on the required bandwidth.

In the dialog "Extended settings", reachable by pressing the button "Extended..." in the dialog "Bandwidth selection" (RealMedia) resp. "System profiles (Windows Media).

In this dialog the resolution (size) of the slides can be set. Here you must consider the screen resolution on the systems on which replay is intended. It can happen that the browser is unable to show the full slide area. The standard slide resolution is optimized for the widely-used screen resolution of 1024×768.A higher resolution of slides leads to a higher amount of memory and longer preload times!

In the dialog "Extended settings", in order to get there presse the button "Extended..." in the dialog "Bandwidth selection" (RealMedia) resp. "System profiles (Windows Media).

The options in this dialog depend on the kind of your presentation. If your record neither contains video nor clips, this tab is disabled.

Video resolution

For selecting the video resolution the available bandwidth should be considered. For photorealistic videos, please note that a higher resolution than 320×240 should only be used if you have a network with a high bandwidth.

Clip resolution

If your presentation contains Screen Recording clips they can be displayed in two ways:

• Clips in video area:The Screen Recording clips (and, if maybe, an accompanying video) are turned into a single video with a fixed resolution. The standard resolution is set to 320×240 pixels. The resolution of the single clips will then be adapted to the selected resolution by zooming down.
• Clips on top of the slides: When converting into a streaming format this way, the Screen Recording clips and, if existing, an accompanying video are turned into a streaming format independent of each other and are displayed separately. The clips can be replayed in the original resolution but should not exceed the slide resolution as this would exceed the size of the browser window. The required bandwidth for the selection "Clips on top of the slides" can be twice as much as when selecting "Clips in video area" since video and clips are displayed in parallel!Choosing "Clips in video area" the target resolution should not exceed 640×480 pixels since in this case the conversion will not be executed correctly, respectively the Player cannot replay the video correctly. The result is a black video window during replay. Reason: the used video codec is optimized for normal video recordings and not for Screen Recording. The required bandwidth for the replay is too high. This affects RealMedia and WindowsMedia.