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AXIS Communications

28-4 Camera Handler Release Notes

9 If the MJPEG quality level is set to 100 at high resolutions

( 1920x1200 for example ) then live viewing problems (

high latency, momentary loss of video, etc) may be

observed in a Victor Client surveillance screen if that

workstation is also trying to live view using the NVR web

client. To avoid the problem, either reduce the quality

level or reduce the number of live viewing clients that are

running on the workstation. Also the FPS provided by the

camera may drop dramatically as a result of increasing

the quality level to 95 or higher.

10 The Axis M3204 and other models that have the

exposure setting at “automatic” (default) will reduce FPS

to improve image quality when poor lighting conditions

occur. To avoid the FPS reduction when the lights are

turned off in the room being viewed then change the

exposure setting from “automatic” to “hold current”

however the consequence is that the image quality could

be very poor (dark).

11 A frame rate drop or a brief video loss may occur at the

moment that lights are turned off in a room being viewed

when receiving MJPEG from Axis Day/Night cameras. To

avoid the problem, either use MPEG‐4 or H.264 to

receive the stream.

12 The NVR Web client allows selection of 8 Kbps audio bit

rate and AAC Audio Codec but not the audio sampling

rate. Selecting the 8 Kbps audio bit rate setting will result

in a loss of audio if the sampling rate is 16 KHz or higher.

Use the camera's own web interface to change the audio

sample rate to 8 KHz if the 8 Kbps audio bit rate is

selected. This limitation occurs on Axis cameras that

support AAC Audio Codec and the 16KHz (or higher)

Audio Sample Rate. Please refer to Axis camera

documentation for details.

13 After enabling dry contact inputs, ensure that LAN

connectivity to the camera is maintained otherwise

frequent NVR event log messages will be generated

about failed attempts to re- establish dry contact event

streams and an infrequent reload of the Axis handler may

occur due to a race condition flaw in libcurl version

7.21.3.

14 When configuring “Edge Based” Motion Detection and

Metadata, the motion area should be configured on the

camera before adding to the NVR.

15 Edge Based Motion Events and Edge Based Motion

Metadata Streams are only supported when “configure

included windows” radio box is selected on camera web

interface.

16 Edge Based motion detection may only be available

when there is at least one H264 stream enabled on the

device.

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