GE SymDec 4 User Manual page 61

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Main Menu / Record Settings / Record Rate
The record rate menu uses the table setup in the MPEG Settings Table to control the recording qualities for
each camera.
Figure 58. The record rate menu
Use the Arrow buttons to select the desired index number that corresponds to an entry in the MPEG Settings
Table.
Higher record qualities use lower compression, requiring more disk space.
Click the Enter button to confirm the selection and exit the menu, or click the Menu button to exit the menu
without making changes.
Main Menu / Record Settings / Variable Bitrate
Figure 59. The variable bitrate menu
This menu allows you to select the Variable Bitrate percentages from 5 to 25%. By default VBR is turned off.
VBR attempts to give each frame the optimum number of bytes while still meeting set constants, such as
the average and maximum peak data rate. The higher the percentage of VBR the greater the savings of disk
space. VBR is only recommended in video without much movement in the frame.