American Dynamics EDVR Calculator, User Manual

Page: 5 / 25

EDVR Calculator User Guide
5
2. The Calculator Utility
General Information

Applicable to FW v1.44A or 1.53A and up.

On the User Interface, red text highlights fields which are automatically selected or
calculated.

Calculate either record time on 10 GB HDD, or the HDD size to be consumed after 1
day of recording.

Calculate recording time/HD size in the presence or absence of audio.

Calculate recording time/HD size when alarm is either active or not.
Known Limitations
Issue Description
One quality setting applies to
all channels. EDVR provides options to set each channel
’
s record quality at 4
different levels of recording image; the EDVR Calculator v1.03 only
supports one global setting of record quality.
Under a special condition, the
Record Time computed by the
Calculator cannot be reached
by the EDVR. This is a
limitation of the EDVR rather
than the Calculator. When 4 cameras are present, and alarm recording is triggered in a
single camera set up at Exclusive or Interleave alarm mode, the
alarm camera will be the only one recorded for the alarm duration. If
the alarm record rate is set at equal to or greater than the maximum
rate allowed (30 images per second (IPS) for NTSC and 25 for
PAL), this camera is expected to record at the maximum allowed
rate from the computation of Calculator v1.03.
In fact, the system will not be able to achieve this maximum record
rate. Depending on the content of the images, the actual rate can
be 3 to 5 IPS lower than the maximum. This translates into 25-27
IPS for NTSC and 20-22 IPS for PAL.