Axis Communications 221 Lower frame rate than expected when viewing MPEG-4, Browser freezes

42AXIS 221 - Troubleshooting

	Image loses focus often.	Disable the DC-Iris lens in the settings for Video & Image > Advanced. Focus the camera
		following the instructions on page 9, and then enable the DC-Iris lens.
	Images only shown in black & white.	Check the color level setting.
		Check the setting for the IR cut filter. Images are shown in color only when this filter is
		enabled, i.e. when set to yes or auto.
	Blurred images.	Refocus the camera. Check in the Video & Image > Advanced - Camera Settings that
		DC-Iris is set to Enabled. If the images are still blurred adjust the metal ring until the
		image is sharp, see Removing and Attaching Lens, on page 47.
	Rolling dark bands or flickering in	Try adjusting the Flicker-free exposure setting under advanced image settings. Note that
	image.	the 'Hold Current'/Manual setting may cause unwanted effects.
Lower frame rate than expected when viewing MPEG-4
	CPU usage too large.	Reduce number of applications running on the client computer.
	Not enough bandwidth available.	Check with system administrator. Adjust settings of MPEG-4 profile, see Advanced Set-
		tings, on page 17.
	Only decoding I-frames.	Check settings in AMC control panel applet, MPEG-4 tab.
	Large images.	Select lower imager resolution.
	Too many event types.	Using multiple event types that use video streams (e.g. upload events, motion detection)
		will cause a drop in the frame rate seen in Live View.
Image degenerating when viewing MPEG-4
	GOV length too long.	Decrease the GOV length, see Advanced Settings, on page 17.
Poor quality snapshot images
	Screen incorrectly configured on your	In Display Properties, configure your screen to show at least 65000 colors, i.e. at least
	workstation.	16-bit. Using only 16 or 256 colors will produce dithering artifacts in the image.
Browser freezes
	Netscape 7.x or Mozilla 1.4 (or later)	Lower the image resolution.
	can sometimes freeze on a slow com-
	puter.
Problems uploading files
	Limited space.	There is only limited space available for the upload of your own files. Try deleting one or
		more existing files, to free up space.
	Missing images in uploads.	This can occur when trying to use a larger image buffer than is actually available. Try
		lowering the frame rate or the upload period.
Overlay is not displayed
	Incorrect size or location of overlay.	The overlay may have been positioned incorrectly. Refer to the online help for information
		on the limitations when using image overlays and privacy masks.
Motion Detection triggers unexpectedly
	Changes in luminance.	Motion detection is based upon changes in luminance in the image. This means that if
		there are sudden changes in the lighting, motion detection may be mistakenly triggered.
		Lower the sensitivity setting to avoid problems with luminance.

For additional assistance, please contact your reseller or see the support pages on the Axis Website at www.axis.com/techsup