AXIS 231D+/232D+ Network Dome Camera User's Manual

58 AXIS 231D+/232D+ - Technical SpecificationsFrame rates - MPEG-4The following test results show the frame rates in frames/second (fps) for MPEG-4 streamsfrom the AXIS 231D+/232D+. Note that these values are guidelines only - actual valuesmay vary.The MPEG-4 test conditions:2CIF expanded 30/252CIF 30/25CIF 30/25QCIF 30/25• Compression level = 50%• Video Object Type = Advanced Simple• GOV structure = IP*fps (NTSC)fps (PAL)4CIF 25 212CIF expanded 25 212CIF 30 25CIF 30 25QCIF 30 25*Note that setting the GOV structure to use “I-frames only” will increase the frame rate.BandwidthAs there are many factors affecting bandwidth, it is very difficult to predict the requiredamounts. The settings that affect bandwidth are:• the image resolution• the image compression• the frame rate• the MPEG-4 object type• the MPEG-4 GOV structureThere are also factors in the monitored scene that will affect the bandwidth. These are:• the amount of motion• the image’s complexity• the lighting conditions.