Operating instructions
31
Description of function keys:
Mode
Choose the video format from „JPEG”, „MPEG4” or “H.264”. It can JPEG, MPEG4 or
H.264. In JPEG mode, the video frames are independent. However, MPEG4 / H.264
consumes much less network bandwidth than JPEG.
Frame size
This option allows the user to choose the video resolution of the Video Server between
„720x576”, „352x288” and „176x144”.
Maximum frame rate
Click on the drop-down list to choose the frame rates of „30FPS” (PAL: „25FPS”),
„15FPS” and „7FPS”, „4FPS” and „1FPS”.
Video quality
Selects the image quality level of JPEG images captured from Highest, High, Medium,
Low and Lowest.
Selects the image quality level of MPEG4 or H.264 images captured from „Constant
bit” (4M, 2M, 1M, 512K, 256K, 200K, 128K and 64K) or „Fixed Quality” (Highest, High,
Medium, Low and Lowest).
Intra Frame Period
In the H.264 or MPEG4 mode, if there is little motion and most of the video content does
not change from frame to frame, the H.264/MPEG4 encoding can compress the video by
the intra-frame method to keep the quality from loss.
You can set the desired time period to use intra-frame compression.
Audio Settings
You can use the option to switch the external microphone on/off or adjust the volume.
Encoding
Click on the drop-down list to choose the audio encoding of „G.711” and „G.726”.
G.726 offers quality nearly identical to G.711, but it uses only half the bandwidth.
Enable audio out
Check to activate this function. Then set the Audio out volume level.
• The Privacy Mask setting page
Click on the Privacy Mask button to enter the Privacy Mask Area setting page. Mask 3 privacy area(s) on video to
specify up to the area(s) on the Video Server‘s image to be blocked/excluded from recordings and snapshots.