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Anywave Communication Technologies
Vivace MPEG2 Encoder User Manual
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PreFilter Strength: An optional video prefilter is available. This can be used to reduce
the high frequency noise of an incoming signal if needed. Filtering noise can provide a
higher quality overall picture when encoding at low bit rates for MPEG2. Filter Strength
of Low, Medium and High are available.
Brightness: The default setting is 128. Allowed settings are 0-255. Increase or
decrease the value will increase or decrease the luminance level of the picture.
Hue: The default setting is 0. Allowed settings are -127 to 128. Increase or decrease
the value will shift the color values within the spectrum of defined colors. Use this for
course color correction when needed.
Contrast: The default setting is 68. Allowed settings are 0-127. Increase or decrease
the value will increase or decrease the sharpness and separation of objects.
Saturation: The default setting is 64. Allowed settings are 0-127. Increase or
decrease the value will increase or decrease the color intensity.
5.5.2
SDI source options
If the encoder model you have includes SDI inputs, these options are also available:
Field Order: top field or bottom field first for SDI inputs. Default is top field first.
Line 21 CC data rate: adjustment for the closed caption data rate for SDI inputs with line
21 cc data.
Output format: interlaced or progressive option
Caption Search: Auto, VANC608 , or Line21 Default mode is Auto which will search
both the VANC for 608 captions and line21 for analog captions. If you know what type of
closed caption format your SDI input is, you can select it.
5.5.3
Advanced Audio Options
Audio Volume: The default setting is 100%. Allowed range is 0 to 200%. This control
will apply a static increase or decrease to the volume level of the audio signal.
Audio AGC::The Audio Grain Control (AGC) is an optional feature that supports audio
loudness level processing compliant with the CALM ACT. The AGC allows automatic,
dynamic audio level adjustment for individual channels. Each channel configuration
allows the use of this feature, with different parameter control.
The setting options are:
Disabled => no limiting