VBrick Systems VB4000, VB6000, VB5000 manual Configuration Encoder Video

Template Name	Description
Cable/DSL 300K High Motion	Approximately 300 Kbps with medium rate mono audio
	and medium resolution video at 30 frames per second.
Cable/DSL 300K Low Motion	Approximately 300 Kbps with medium rate mono audio
	and high resolution video at 15 frames per second.
Cable/DSL 128K High Motion †	Approximately 128 Kbps with medium rate mono audio
	and lower resolution video at 15 frames per second.
Cable/DSL 128K Low Motion	Approximately 128 Kbps with medium rate mono audio
	and medium resolution video at 10 frames per second.
Modem 56K	Approximately 56 Kbps with low rate mono audio and
	low resolution video at 7.5 frames per second.
Security & Surveillance	Approximately 170 Kbps with very low rate mono audio
	and high resolution video at 1 frame per second.

†Default template. The appliance is configured and shipped with this template installed and the values you initially see in IWS are those defined by this template.

Configuration: Encoder > Video

The WM appliance supports multiple bit rate (MBR) whereby several streams are encoded at different bit rates. In this encoding strategy, the Windows Media Player negotiates with the appliance (or with a Windows Media Server) to select and play the stream that is most appropriate for current bandwidth conditions. Many of the configuration settings in this section are MBR-specific. For more about MBR, see Using Multiple Bit Rate Streams on page 8. Note that you can over subscribe the WM appliance by configuring multiple video rates using resolutions and frame rates and/or bit rates that are too high. The exact combinations that are too high will vary depending on the video content you are encoding. Monitor the Status: Encoder Status page for Unexpected Frames Dropped which indicates the encoder is over subscribed.

Note Any change in the configuration settings for any of the video encoders will cause a brief interruption of video and audio for all three encoders. All streams being sent from the unit (including multicast and push) are interrupted. Any active HTTP or RSTP clients will be dropped and any archive file in progress will be closed.

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