問題：
What does "Active Video Width" mean in the WFM700?
答案：
Active Video Width specifies the number of bits used to represent each color sample in an SDI stream. More bits will produce a richer color depth; specifically a 10-bit system has 4 times the range of colors as an 8-bit system.
Normally, SDI uses a 10-bit width but some older equipment still only generates 8-bit data and then zero-pads that to 10-bits. The WFM700 is designed to detect this zero-padding and report it as 8-bit active video width instead of 10-bit.
Both 8-bit and 10-bit active video widths are acceptable though 10-bits are preferable.
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