User`s guide

Digital Rapids TouchStream
Page 19
take to fade in or fade out in seconds. Use the round Fade In and Fade Out
buttons to test your fade duration.
Note: If you change the graphic overlay while you are streaming, any changes
you make will be seen immediately in the encoded video.
Once you have set the graphic overlay you will also be able to use the Fade In
and Fade Out buttons on the main screen to control the overlay.
Picture Controls
The picture controls adjust the brightness, contrast and color saturation. As you
adjust the sliders you will see the changes used in the video preview. You can
use the button at the bottom of each slider to reset the slider to the default value.
Note that when you are using a graphic overlay, changes to the picture controls
will not affect the graphic overlay, they will just affect the video.
Noise Reduction
Removing noise from the video will improve the quality of the encoded video by
allowing the codec to allocate bits to real picture data. There are two types of
noise reduction that can be adjusted in the TouchStream interface.
Spatial Noise Reduction
Spatial or 2D noise reduction is commonly used to remove single pixel ‗salt and
pepper‘ type noise such as video dropouts. Spatial noise reduction only affects
the current frame of video, specifically targeting high frequency noise which is not
part of the structure of the image. It specifically attempts to deal with high
frequency noise which is not part of the edge of an object in the picture or other
structures in the video.
There are three settings for 2D noise reduction:
 None: No noise reduction is applied
 Optimal: A predetermined amount of noise reduction is applied. This has
been determined by testing with many hours of video.
 Extreme: A greater amount of noise reduction is applied at some loss of
overall picture sharpness.
Spatial or 2D noise reduction is not available for the HDi (HD/SD SDI) models.