Channel settings - recording, Ncast telepresenter reference manual – NCast Telepresenter M4 User Manual

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NCast Telepresenter Reference Manual

quality. Increasing max quantizer too much may cause the encoder to skip frames in order to maintain the
target framerate. This is a video encoder option - it doesn't affect the decoder.

4.2.23. Graphics CBR Buffer

Sets the Constant Bit Rate buffer size in seconds. This controls how much the bit-rate can vary locally. A
larger buffer size results in higher overall video quality and less frame skips, but increases the video latency.
This is a video encoder option - it doesn't affect the decoder.

4.2.24. Audio Frames

Sets how many AAC frames can be sent in one packet. The default value is 8. The valid range is from 1 to
10. Lower values result in lower network jitter and lower latency, but higher network overhead (each packet
contains additional headers). Set to 1 to achieve extra low audio latency. This is an audio encoder option - it
doesn't affect the decoder.

4.2.25. Audio/Video Synchronization

This option is only visible if the Channel is set to “Full-duplex” or “Receive”. If enabled, audio and video is
synchronized during playback to maintain lip-sync (this is the default setting). If disabled, audio and video is
not synchronized during playback. In typical configuration audio will be played ahead of video. If lip-sync is
not needed, disable this option to get lower audio or video latency. This is a decoder option - it doesn't affect
the encoder.

4.2.26. Burst Video Playback

This option is only visible if the Channel is set to “Full-duplex” or “Receive” and is only available if
“Audio/Video Synchronization” is disabled. If enabled, the decoder forces video frames to playback
immediately after being received. This will result in lower video latency, but video playback will be jumpy due
to encoder and network jitter. If disabled, video frames are delayed to achieve smooth and fluid video
playback (this is the default setting). If jumpy video playback is acceptable, disable this option to get the
lowest video latency. This is a video decoder option - it doesn't affect the encoder.

4.3. C

HANNEL

S

ETTINGS

- R

ECORDING

4.3.1.

Recording Options

NCast Corporation

Revision 2.2

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