Samsung UN32D4000NDXZA - Manual (Page 40)

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English
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Digital❑Noise❑Filter❑(Off❑/❑Low❑/❑Medium❑/❑High❑/❑Auto❑/❑Auto❑Visualization ):
If the broadcast signal received by your TV is weak, you can activate the
Digital❑Noise❑Filter feature to reduce any static and ghosting that may appear
on the screen.
N When the signal is weak, try each option until the TV displays best
picture.
Auto❑Visualization : When changing analog channels, displays signal strength.
N Only available for analog channels.
N When the bar is green, you are receiving the best possible signal.
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MPEG❑Noise❑Filter❑(Off❑/❑Low❑/❑Medium❑/❑High❑/❑Auto) : Reduces MPEG
noise to provide improved picture quality.