Using the DVDxDV preferences Audio Settings
Audio Export Precision This setting allows you to specify the audio export precision as 24 bit or 16 bit. The 24 bit precision option will only create 24 bit sound files when the following conditions are met: 1. The native audio format must be able to support 24 bit audio, such as AC3. Otherwise, a 16 bit audio file will be created. 2. The audio must be extracted to a separate set of files. When extracting to a Quicktime Movie, the "export multi-channel audio to AIFF" must be selected. Export multi-channel audio to AIFF This setting must be selected in order to export a multi-channel sound track. Without this option selected, the multi-channel audio will be mixed down to two channels. Video Settings G3 iMac Compatible DisplayIf you have a G3 MacIntosh or you can't preview the video on the DVD, try enabling this setting. Detect and remove 3:2 pulldownThis setting is designed to be used with NTSC telecined video. When film or video that has a frame rate of 24 frames per second is transferred to DVD, a process called telecine is sometimes used. This process makes up for the difference in the NTSC video frame rate and the original content at 24 frames per second by duplicating parts of the source material. The above diagram shows how 4 frames at 24 frames per second are duplicated across 5 frames or 10 fields of NTSC video. The "W" in the diagram stands for a whole frame and the "S" stands for split frames. A split frame contains half of the previous frame and part of the next frame of the source material in a single video frame. A whole frame contains the complete image of one frame of the source material. This setting attempts to remove the duplicate information in the video stream. Removing the telecine pattern in the video, allows it to be edited on a clean frame boundary because each frame of video now equals one whole frame of the original source. The output video contain 20 percent less frames than the original DVD. This can be an advantage in for creating internet streaming video. There are several settings under this option: - Guess 3:2 pull-down In this setting, the video is scanned for the repeating 3:2 pull-down, before the video is extracted. If the video contains very little motion or is excessively dark, the pattern may not be found, and the extraction will stop. You may need to hard set the pull down pattern. - Set the 3:2 pull-down pattern Don't use this setting in combination if you have, also, set "in" for a video extraction! The results will be unpredictable. Use the Guess 3:2 pull-down setting or extract the video without setting an "in" point. The 3:2 pull-down pattern repeats every 5 frames of NTSC video and is different depending on which field of video comes first. Therefore, there a 5 upper field dominant settings and 5 lower field dominant settings. Only use this setting if you are sure you know the way the video was recorded. De-interlace Video This setting can be used when the video is intended for a computer monitor. It removes the jagged edges that can be seen on moving objects. This setting may introduce visual artifacts into the video and therefore, it should be used with caution. Interlaced Field Order This setting determines the output field order of the video created by DVDxDV. In most cases, this setting should be set to "Lower Field Dominant". The change in field ordering can adversely affect how a video looks on television monitor. Therefore, only change this setting if you know that the field order must be set a certain way. The de-interlace video setting over-rides this setting. Frame Size This setting will scale the video to a standard frame size, such as 720x480. Shrink 16:9 anamorphic to 4:3 This setting expands DVD video that is anamorphic encoded to the width of the frame size specified in the "Frame Size" setting. The height of the video is reduced. Use this setting in conjunction with the "Crop video to" setting in order to adjust the height to a standard frame size, or to remove letter box black bars on the top and bottom of the video. Crop video to This setting allows you specify the frame size of the video. This setting doesn't scale the video, but rather adds black letter boxing around the video. The video preview window doesn't display the changes. They are only visible when looking at the finished movie. This setting may affect the interlaced field ordering, so it isn't recommend to use this setting on material that is interlaced. Use High Quality Video Resizing This option will improve the quality of the video when it is resized to a different frame output size. Using this option will slow down video extraction process and the video preview playback.
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