Spyclops SPY-DVR Kit (ALL KITS) User Manual User Manual

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Bitrate mode: This will be dependant on your bandwidth and specific needs

Constant Bitrate

This is the default encoding mode, and

also the most basic. In this mode, the

bitrate will be the same for the whole file.

It means that each part of your video file

will be using the same number of bits.

The complex parts will be of a lower

quality than the easiest ones. The main

advantage is that the final files size won't

change and can be accurately predicted.

This mode is not recommended

Average Bitrate

In this mode, you choose a target bitrate

and the encoder will try to constantly

maintain an average bitrate while using

higher bitrates for the parts of your video

that need more bits. The result will be of

higher quality than CBR encoding while

the average file size will remain

predictable, so this mode is highly

recommended over CBR.

Variable Bitrate

In this mode, you choose the desired

quality on a scale going from 9 (lowest

quality/highest distortion) to 0 (highest

quality/lowest distortion). Then you

choose the optimal number of bits to

spend for each part. The advantage is that

you are able to specify the quality level

that you want to reach; the inconvenient

is that the final file size is totally


Encode format: For the main stream we recommend NTSC with D1 format






176 x 120

352 x 240

352 x 480

704 x 480


176 x 144

352 x 288

352 x 576

704 x 576

Rate: In general, we recommend a bitrate of around 2 - 2.5 Mbps, which takes into account the average

worldwide broadband connections for video output

Quality: You can adjust your image quality fluctuation. Highest, High, Medium, Low, Lowest. Highest is

recommended, although it will effect your bandwidth

Frame rate: The frame rate is how many unique consecutive images are displayed per second in the video

to give the illusion of movement. Keep in mind, that the minimum limit that our brain needs to perceive

moving frames as a video is 24 Frames per Second, so there is no big difference between 24 and 30 fps

except the higher frame rate will effect your bandwidth and data storage