Instruction manual

Configuration: Encoder > Audio

If configuring audio for multiple bit rate, you can specify separate encoder settings for up to

three audio encoders. When Audio Rate2 or 3 is enabled, the Sample Frequency must be

44.1 KHz and only bit rates compatible with 44.1 KHz can be selected. As with video, any

change in the settings for any of the audio 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.

Picture Center

Quality Difference

Sets the quality difference between the center of the image and the

edges. By reducing quality on the edges the encoder may be able to

improve the quality of the center of the image at a given bit rate.

Buffer Size Sets the rate control buffer depth in milliseconds. Larger buffer sizes

may improve video quality and make the encoder's rate control more

consistent. This value is also used as the .wmv pre-roll for the stream

header so the player generally buffers at least this amount of data and

as a result larger buffer size values will increase end-to-end latency.

Video Rate2 Use to configure multiple bit rates. Check

Enabled to display the

configuration settings for Video Rate2. Once enabled, VideoRate2 and

VideoRate3 are available for selection on the Multicast, Server, and

Archiver pages. If selected on those pages, an error will display if you

attempt to disable them on this page. Video Rates1, 2, and 3 must have

different Target Bit Rates.

Video Rate3 Use to configure multiple bit rates. Check

Enabled to display the

configuration settings for Video Rate3. Video Rates1, 2, and 3 must

have different Target Bit Rates.