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Forensic Video Examinations

General video analysis

Many video recordings have both audio and video channel. If the sources of recorded sounds are located on the video then audio and video events should be synchronized. Audio channel will be analyzed as outlined in audio examinations. Frame-by-frame analysis of moving objects is done to determine velocity, angles, positions and times.

Testing for alterations of video recordings

The audio channel, if present, is analyzed as outlined in audio examinations. As the events on audio and video channels are synchronous, any breaks (stop-start) in audio recording should be accompanied by a break in video recording. Frame-by-frame analysis and magnetic development are used to check video for recording continuity.

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