Capturing Video from Tape


Now the technicians can cue the videotape to a point about five seconds before the start of the program. They start the tape, then start the capture. It is important to make sure the program is capturing before the video starts. Keep in mind there is a small delay between the time at which you click the button to start the capture and when the program actually begins capturing frames.

As the capture proceeds, the technicians monitor the quality of the video and check the CPU load and remaining disk space counters with Performance Monitor. If the CPU exceeds 75 percent, and certainly if it hits 100 percent occasionally, the quality of the final encoded video might be adversely affected. A computer with the same specifications as those used in the compression suite are capable of capturing uncompressed video with full-frame size and frame rate without overloading the CPU.

When the source ends, the technician stops the capture. They allow a few seconds of black or extra space after the program before stopping the capture to make sure the source is not cut off. Then they open the file in Windows Media Player and play it back to check the capture quality. When you do a capture, remember to check the beginning and end to make sure program material was not cut off. If everything looks and sounds good, you can encode the final compressed file. For more information about using the encoder, see chapter 7.




Microsoft Windows Media Resource Kit
Microsoft Windows Media Resource Kit (Pro-Resource Kit)
ISBN: 0735618070
EAN: 2147483647
Year: 2005
Pages: 258

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