User's Manual

9.1.9 I-Frame Interval
I-frame interval denes the number of frames between 2 I-frames.
In H.264 and H.265, an I-frame, or intra frame, is a self-contained frame that can be independently
decoded without any reference to other images. An I-frame consumes more bits than other
frames. Thus, video with more I-frames, in other words, smaller I-frame interval, generates more
steady and reliable data bits while requiring more storage space.
9.1.10 SVC
Scalable Video Coding (SVC) is the name for the Annex G extension of the H.264 or H.265 video
compression standard.
The objecve of the SVC standardizaon has been to enable the encoding of a high-quality video
bitstream that contains one or more subset bitstreams that can themselves be decoded with a
complexity and reconstrucon quality similar to that achieved using the exisng H.264 or H.265
design with the same quanty of data as in the subset bitstream. The subset bitstream is derived
by dropping packets from the larger bitstream.
SVC enables forward compability for older hardware: the same bitstream can be consumed by
basic hardware which can only decode a low-resoluon subset, while more advanced hardware
will be able decode high quality video s
tream.
9.1.11 Smoothing
It refers to the smoothness of the stream. The higher value of the smoothing is, the beer uency
of the stream will be, though, the video quality may not be so sasfactory. The lower value of the
smoothing is, the higher quality of the str
eam will be, though it may appear not uent.
9.2 Audio Sengs
It is a funcon to set audio parameters such as audio encoding, environment noise ltering.
Go to the audio sengs page: Conguraon → Video/Audio → Audio .
9.2.1 Audio Input
If built-in microphone or external audio pick-up device is available, audio encoding, audio input
mode and input volume ar
e congurable.
Audio Encoding
The device oers several compression standard. Select according to your need.
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