Aspect ratio – Kramer Electronics SP-14 User Manual

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Control of the sharpening enhancement. These are peaking filters to improve high-frequency response.
Note: setting this control too high on a signal which already has good high frequency response will
cause ringing or ghosting.

Detail Enhance
Provides an additional level of detail enhancement beyond that provided by the Unsharp Mask

Unsharp Mask
This is a very powerful function which performs a per-pixel unsharp mask on the image content. It can
be used to greatly improve detail definition and clarity without causing image ringing or ghosting. It
improves both horizontal and vertical detail.
Correct setting of the Unsharp Mask filter can make SD signals look virtually indistinguishable from true
HD.

4.7.5.

Aspect Ratio


AFD Mode
Video signal streams may include information describing the transmitted format (HDMI: AVInfoFrames,
Composite NTSC/PAL: WSS/CGMS-A, 3GSDI: Generic SMPTE2016). The AFD signal (Active Format
Description) is automatically considered by SP-14 when AFD Mode is set to Auto. Essentially, this
feature switches on the detection of the aspect ratio of the incoming video signal. The ARC (Aspect
Ratio Conversion) settings in the Output Settings menu determine how this information is processed.
The AFD Mode can be set to Forced, in which case the AFD markers are ignored and the aspect ratio is
said to be what is set under the menu item AFD Default/Forced, whether or not that is actually the case.

AFD Default/Forced
When the AFD information is missing or corrupted or when AFD Mode is set to Forced this menu
determines what aspect ratio the input signal is assumed to have for further processing.
If it is set to 16:9 or 4:3 the incoming video signal is considered to have that aspect ratio.
Keep Last means use whatever was seen before. If nothing was seen before use 4:3 for SD modes and
16:9 for HD modes.

AFD Source
From this menu AFD, WSS/CGMS-A or Video Index may be selected as AFD source. The sources for
aspect ratio information for the input channels are as follows:

HDMI: From the AVInfoFrames (see CEA-861-D)
DVI and VGA: none available - all input formats assumed to be square pixel, hence aspect ratio can be
calculated from the resolution (except 576i, 480i, 576p, 480p if accepted, which are all 4:3)
SD/HD/3G-SDI: User choice of AFD packets (as SMPTE 2016) or legacy support for Video Index
(SMPTE RP186)
CVBS/S-Video/YCbCr: WSS or CGMS-A packets, according to format. PAL/576i uses WSS (BT.1119-
2); NTSC/480i,720p,1080i use CGMS-A (CEA-805/IEC 61880/EIAJ CPR-1204/etc)

Trim Width % and Trim Height %
The video image can be scaled independently in the horizontal and vertical direction. Black bars are
added on top and bottom of the image when a shrink is performed.

Pan Left/Right % and Tilt Up/Down %
The zoomed image can be paned in horizontal and vertical direction with these controls.

Reset Trim Position
Resets all trim and pan settings to zero percent.




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