Bedienungsanleitung Harman Kardon AVR255 (Seite 37 von 58) (Englisch)

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ADVANCED FEATURES 37

ENGLISH

Video Adjustments

ideo Adjustments

he AVR 255/AVR 355 includes sophisticated

DCDi by Faroudja video processing that delivers

enhanced video quality, even for older analog

video source components, as well as upgraded

on-screen displays. When upscaling video

materials from a lower resolution to a higher

one (the AVR 255/AVR 355 upscales to a

maximum of 1080p), the processor is adding

pixels to the original image. Sometimes when

onverting interlaced video (displays all odd

rows then all even rows of the frame) to

progressive-scan video (displays all rows at

once) and increasing the resolution, the

interpolation of new pixels can cause jagginess,

or a staircase effect, at edge transitions, such as

the stripes in an American flag. Faroudja

engineers developed the DCDi (Directional

Correlational Deinterlacing) algorithm to ensure

that the additional pixels follow the edge,

virtually eliminating the jagginess and enhancing

upscaled images.

Thanks to the “Torino” video processing chip,

on-screen graphics may be generated in high

definition, and blended with the incoming video.

This not only delivers crisp, clear information

messages, it allows you to continue to watch a

program while making system adjustments.

Video Modes

After you have adjusted the picture settings on

your video display, additional adjustments may

be made to the AVR, if necessary, to further

improve the picture. Access these settings from

the Video Modes menu. Press the Video Modes

Button on the front panel or remote, and the

screen shown in Figure 19 will appear.The menu

may also be accessed from the Setup Source

menu by pressing the Info Settings Button and

selecting the Video Modes line.

Figure 19 – Video Modes Menu

Video Mode: The default setting of Processor

Off passes the video signal through to the

display without any processing. Select one of

these processing options to optimize the picture

for the current program by applying adjustments

to the brightness, contrast, color and sharpness:

• Sports: For sporting events.

• Nature: For programs shot outdoors, in a

atural setting.

• Movie: For movies and many television

broadcasts.

• Custom: Allows manual adjustment of the

picture settings. The Brightness, Contrast,

Color and Sharpness settings will appear on

screen as sliders with values ranging from 0 to

100. The default setting for each adjustment is

0. Use the M/N Buttons to change each

setting’s value.

Picture Adjust: Use this setting to change the

aspect ratio of the displayed image.

When displaying widescreen (16:9) images on a

full screen (4:3) device, letterbox format will be

used, in which black bars may appear above and

below the image (pillarboxing).

When displaying full screen images on a

widescreen device, black or gray bars may

appear to the left and right of the image.

Some displays, especially plasma and CRT

monitors, may suffer from “burn-in” when the

same image, such as the horizontal or vertical

bars, is left on screen for a long period of time.

Use this setting to adjust the picture so that it

fills the display’s screen. The options are:

• Auto Fit: The AVR automatically adjusts the

image as required to

fit the display’s capabilities.

• Height Fit: Adjusts the image to eliminate

any bars above or below

it. Bars may remain at the sides.

• Width Fit: Adjusts the image to eliminate any

bars on the sides.

Bars may remain above and below the image.

• Zoom 1x: Displays the image as received

from the source. If the image is in the 4:3

aspect ratio, on widescreen displays pillarbox

format may be used. If the image is in the

16:9 aspect ratio, on full screen (4:3) displays

letterbox format may be used.

• Zoom 2x: Stretches the image evenly to

completely fill the screen. The outer portions of

the image may be cropped.

Feel free to experiment with this setting for each

source until you find a pleasing display format

for each program.

Advanced Video Settings: Press the N or OK

Button to display the Advanced Video Modes

submenu (see Figure 20).

igure 20 – Advanced Video Modes Menu

Noise Reduction: To reduce signal noise,

choose between LOW, MEDIUM, HIGH or OFF

with the OK button X. It is advisable to use as

low a step as possible, as high levels of Noise

Reduction may impair other aspects of the

image.

MPEG Noise Reduction: This setting is

designed to address two specific types of video

distortion, mosquito noise and blocking artifacts.

If you see haziness or shimmering around the

edges of objects or the scrolling credits in a film,

or if the image appears to “pixellate” into

blocks, change the MPEG Noise Reduction

setting from its default of Off to the Low,

Medium or High setting to improve the picture.

Cross Color Suppressor: Turn this setting on

to remove cross color artifacts, which can occur

when high-frequency luminance (brightness)

signals are misinterpreted as chroma (color)

signals, which can cause unwanted flickering,

flashing colors or rainbow patterns.

Film Mode Detect: While normally left off,

turn this setting on to compensate for authoring

errors in the process of converting film programs

to video.

Return to main Video Modes Menu by

pressing Back/Exit

Brightness: This control adjusts the level at

which black is delivered. We recommend leaving

it at its factory setting, although there is no

harm in experimenting if you are using a test

signal.

Contrast: This control adjusts the difference

between black and white in the picture. We

recommend leaving it at its factory setting,

although there is no harm in experimenting if

you are using a test signal.

Harman Kardon AVR255 Seite 37

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