Extra Information

Niagara SCX User Guide
ViewCast 81
Tab Description
Figure 134. MPEG-4 Type Options
• You can set the frame rate and bit rate under the Video settings (Figure 135).
• The Enable B Frame option turns on or off the insertion of B frames in the
video stream.
• If you enable B frames and set the MPEG type to MPEG-4, the resulting H.263
file uses Advanced Simple Profile when you encode it.
NOTE: Some players, such as Quicktime player, become incompatible with
streams that include B frames. If your resulting stream has quality issues on
playback, try disabling B frames to ensure compatibility with most players.
The Video/Encode Quality setting currently remains inactive and does not
affect the results of the encoding stream or file.
Figure 135. MPEG-4 Basic Settings
• Under the Audio Format settings, you have another drop-down box that
includes several choices as for audio sampling (Figure 136).
• It allows you to set whether you want to encode the audio monophonic (mono)
or stereophonic (stereo).
Figure 136. MPEG-4 Audio Format Options
• The Audio Encoder settings (Figure 137) provide you with a drop-down box
with two primary choices: