How long does it take...

Started by richy2, May 05, 2013, 04:04:15 PM

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richy2

How long does it take to get to the center of a tootsie roll pop...1...2 opps wrong forum

How long...hours /days/weeks can the video record to the hard drive?

How about the 32GB card ?

Please give some real numbers.. or a guesstomate.

dave w

If I understand the question: an hour of low compression NTSC video is about 12GB. Once you start compression that rule of thumb sorta goes out the window. MPEG2? MPEG4?, AVI? etc.
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richy2

Quote from: dave w on May 05, 2013, 05:26:22 PM
If I understand the question: an hour of low compression NTSC video is about 12GB. Once you start compression that rule of thumb sorta goes out the window. MPEG2? MPEG4?, AVI? etc.
I was trying to get some idea.. in days/hours with these cameras

airsight Compression: H.264, MJPEG or

X10 AirSight PTZ Wireless IP Camera using a sd card with the computer

on the lenght of time.

dave w

#3
Sorry, Can't help you. Newer standards for static security cameras is far different from what I was familier with.
http://www.tereo.com/MJPEGvsMPEG4vsH264.aspx
It appears, the amount of motion a camera sees dramatically affects the amount of compression that can be applied to the video. In other words a camera using H264 codec compression pointed at an empty livingroom will, at the end of the day, create a much smaller file than a camera pointed at a busy street. Amount of compression and file size is dynamic and varies with the amount of motion in the frame. So you might start a new file and look at file(s) size 24 hours later for an estimate.  
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