Documentation for Axxon PSIM 1.0.0-1.0.1.

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Axxon PSIM software package allows storing audio archive (recorded with the video archive) on hard disks (see Setting up the audio and video synchro recording). So, it is necessary to provide space for storing not only video recordings, but also audio recordings recorded synchronously, on the hard disk. Information on how to calculate the required disk space for storing the video archive is given in Free disk space (video archive size) required section.

Below one can find information about required disk space for storing audio recordings from 1 audio channel (microphone) depending on the audio digitization rate.

Important!

Regardless of the codec, the audio archive is recorded in PCM format.


Digitization rate

Audio recordings for 24 hours, GB

Audio recordings for 30 days, GB

8000

0.39

11

11025

0.49

15

22050

1

30

44100

1.8

54

48000

2

60

96000

4

120

The formula for calculating the depth of the video archive recorded synchronously with the audio archive is given below (to find info about frame size see  Free disk space (video archive size) required):

Depth of video and audio archive (day) = Hard disk space (GB) / ((k (s/day* GB/Kb) * Frame size(Kb) * Frame rate (fps) * Number of cameras) + Volume of audio recording per day (GB/day) * Number of audio channels)

Here k is the unit conversion factor for the depth of the video archive, calculated like this:

k = (60(s/min)*60 (min/h)*24(h/d))/(1024(Mb/GB)*1024(Kb/MB))~0.08

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