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blackmagic atem 1 m/e production switcher - Imagecraft

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38<br />

Using ATEM Software Control<br />

Setting the Down Converter Style<br />

Setting the Media Pool Clip Length<br />

Setting the Down Converter Outputs<br />

When running in high definition, permanently down-converted to standard definition outputs are available<br />

on the ATEM 1 M/E and 2 M/E <strong>production</strong> <strong>switcher</strong>s as SDI and composite video output connections. When<br />

running the <strong>switcher</strong> in high definition, this output always outputs down converted standard definition for<br />

connection to older devices. Down conversion is not available on the ATEM Television Studio model.<br />

The list below shows the downconverter output format for each of the <strong>switcher</strong>'s internally set video<br />

standards:<br />

720p/50 converts to 625i/50 PAL<br />

720p/59.94 converts to 525i/59.94 NTSC<br />

1080i/50 converts to 625i/50 PAL<br />

1080i/59.94 converts to 525i/59.94 NTSC<br />

Down conversion can be selected to various scaling options, and these include center cut, letterbox<br />

and anamorphic.<br />

Centre Cut Crop left and right side making a 4:3 image.<br />

Letterbox Scales the video down with black bars to top and bottom.<br />

Anamorphic Horizontal scale (squeeze) to make 16:9 image fit 4:3. Requires an anamorphic or<br />

16:9 monitor or television to correct the aspect ratio.<br />

Setting the Serial Control Output<br />

This option will allow camera control and server control from the ATEM 1 M/E and 2 M/E Production Switcher.<br />

This is not currently supported in the current ATEM software and will be added in a future software update.<br />

Adjusting the Media Pool Clip Length<br />

On the ATEM 1 M/E and 2 M/E <strong>production</strong> <strong>switcher</strong>s, the ATEM media pool has two clips that share the<br />

same pool of memory. The maximum capacity for the number of frames for both clips is set by the amount<br />

of physical memory in the <strong>switcher</strong> itself. If you need a clip to be longer than half the frames of memory<br />

available, then you can adjust the balance of frames available for each clip here.<br />

Lengthening one clip will steal frames from the other, and limit the other clip to shorter image sequences.<br />

On the 1 M/E Production Switcher model when operated in 1080i video standards, there are 180 frames that<br />

can be shared between the two clips. For 720p there are 360 frames that can be shared. When running in<br />

standard definition there are 900 frames that can be shared.

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