Anthem Audio AVM 30-HD Home Theater System User Manual


 
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4. OPERATION continued …
Chroma Bug Filter
An encode/decode error inherent with DVD appears as horizontal streaks over areas that are rich in color,
especially red areas in cartoons and computer animation. Turn correction ‘On’ if you see such an artifact,
but don’t spend any energy looking for it – your DVD player, depending on model, may already be fixing it.
Video ADC
S-Video and component video signals containing anomalies may need adjustment before being converted to
digital. Video Input Gain (default: Auto) changes the white level – adjust if bright areas are too bright. Video
Input Offset (default: 50) changes the black level – adjust if dark areas are too dark. Sampling Phase
adjustment (default: 15) is useful when video comes from a video DAC (e.g. computer video card) and
contains ringing edges due to improper filtering – adjust for minimal “ghost” imaging while using a static
black and white picture with lots of detail and sharp edges.
The Crop Input menu is where the ‘frame’ for the image is controlled. If there’s anything that you want to get
rid of at the outer edges of the picture, this is the best place to do it, i.e. before further processing.
HDMI Auto Detect
Operates according to a flag in HDMI data. Although the AVM 50 recognizes this flag at the input, and also
sends it to displays via the output, your source or display may not – set manually if necessary.
16:9 and 4:3
Make the selection that displays the picture correctly. If the source is standard-definition DVD, normally you
would set cropping to 4:3 when the DVD is anamorphic and 16:9 when letterboxed or when an anamorphic
projection lens is used for viewing ‘Scope’ movies (more info on aspect ratios on next page).
Custom Setting
If the above aren’t suitable, adjust Horizontal Size, Vertical Size, Horizontal Position, and Vertical Position.
Since position can be adjusted, this can be the right option for sources with substantially off-center images.
Edges
This selection is independent of the preceding ones. When ‘On’ is selected, the outer edges of the input are
removed. Use if you see any non-picture ‘garbage’ along the outer edges. Number of pixels removed from
each edge is adjustable from 0 to 20.
Y/C Delay and Horizontal Offset
Adjust if image is not centered, or if YCbCr source needs Y/C delay adjustment. See also Sync in section 3.8.
HDMI Auto Detect
16:9
4:3
Custom Setting
Edges Off
Edges On
Y/C Delay / H Offset
SCALE OUTPICTURE CROP INPUT PATTERNS INFO
OUTPUT