4-3 Dynamic Motion Control (DMC) Playback

This section describes dynamic motion control (DMC) playback.

4-3-1 Overview

DMC playback allows you to vary the playback speed for a certain section of a tape, in variable speed mode (from –1 to +3 times normal speed for digital Betacam playback, from –1 to +3 times normal speed for MPEG IMX playback, from –1 to +2 times normal speed for Betacam SX playback, or from –1 to +3 times normal speed for analog Betacam playback), and store the varying speed in memory for later playback at the same varying speed.

For example, during a live broadcast of a sporting event you can set the start and end points of highlights and then provide immediate DMC playback of those highlights.

During DMC playback the tape moves as shown in the following figure.

On-air start point

Preroll point

Speed variation start point

Speed variation end point On-air end point

Waiting for the on-air cue

Stop

 

 

 

before starting DMC

Press the CUE/PLAY button.

 

playback

 

 

 

 

Press the CUE/PLAY button

Normal speed

 

playback

DMC playback

 

again at the on-air cue.

Normal speed playback

 

 

Stop

Starting DMC playback

 

immediately after preroll

Press the LEARN button.

 

Normal speed

DMC playback

Normal speed playback

playback

Playback 4 Chapter

4-3-2 Storing a Varying Playback Speed in Memory

To store the playback speed for DMC playback, use the following procedure.

Note

Make sure that the TSO PLAY of setup menu item 111 is set to DIS beforehand.

Z

1,4 5 2 7 3 3,4,6

1 Press the DMC EDIT button, turning it on.

(Continued)

Chapter 4 Playback 4-7