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Author: MarieW | Website: http://htt://www.sothinkmedia.com

Step #2 – Customize audio & video conversion settings

The program provides 8 pre-defined profiles for users who are not clear about how to set conversion settings. These profiles are several different combinations of audio Bit rate, Sample rate, video Bit rate and Frame rate, which can make the output Flash Video files suitable for different Network band width, which means you can get the best display effect for the Flash Video according to user’s different Network connection speed. Otherwise, if you are sure of yourself to complete the conversion setting, you can also select “User-defined” option to start customizing the audio and video settings.
NOTE: here are the explanations about each option in settings’ area. Audio Settings [Enable audio]: Do not check this option if you want the created Flash Video without sound. [Sample rate]: The higher sample rate is, the better audio quality you can get, but the file size of the created file would be larger. [Bit rate]: The higher Bit rate is, the better audio quality you can get, but the file size of the created file would be larger. [Channels]: You can choose Mono or Stereo channel. [Gain]: You can adjust the audio volume by dragging the gain slider. The range is from -5.0 to 30.0db. Please note that if the gain is too high, the audio may get distortion. Video Settings [Width & Height]: The program locks the width to height ratio by default. Click the lock button to unlock it. [Bit rate]: The higher Bit rate is, the better video quality you can get, but the file size of the created file would be larger. [Frame rate]: The program will automatically get the Frame rate from the source video. Keep the same Frame rate is suggested. If you want to reduce the output file size and do not mind about the quality retrograding, you can lower the Frame rate. [Key frame interval]: The smaller key frame interval is, the better picture fluency of Flash Video you can get, but its file size will be larger. The suggested key frame interval is half of the Fame rate value. For example, if the Frame rate is 24, then you'd better set the key frame interval to be 12. [Zoom Mode]: There are 3 different zoom modes you can choose: LetterBox/Pan&Scan/Stretch. LetterBox - If you adopt LetterBox mode, the picture will be shrunk to fit the target dimension while preserving the aspect ratio of source video and black bars will be added to fill the gaps. Pan & Scan - Only parts of the source video would be converted with Pan & Scan mode. The program will cut out some detail around the picture, which is not considered so important, to make the width or height fit. Stretch - With Stretch mode, the whole video will be recorded at full dimension for preserving all the fine details, but the picture will lost the original aspect ratio and be literally squashed out of shape. Click “Next” button you can select the output folder and files in output setup area.
» Level Intermediate

Added: 2007-05-23
Rating: 9 Votes: 9
(10 being the highest)
» Author
If you need any help, please feel free to email me: wangting@sothink.com
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