Axis Video Server AXIS 241SA User Manual

Also see for AXIS 241QA: Specifications Installation guide Specifications User manual User manual

Contents

Axis Video Server AXIS 241SA User Manual Manual pdf 69 page image

69AXIS 241QA/AXIS 241SA - Technical specificationsGeneral performance considerationsWhen setting up your system, it is important to consider how various settings andsituations will affect performance. Some factors affect the amount of bandwidth (the bitrate) required, others can affect the frame rate, and some will affect both. If the load on theCPU reaches its maximum, this will also affect the frame rate.The following factors are among the most important to consider:• High image resolutions and/or lower compression levels result in larger images.Bandwidth affected.• Access by large numbers of Motion JPEG and/or unicast MPEG-4 clients. Band-width affected.• Simultaneous viewing of different streams (resolution, compression, etc.) by dif-ferent clients. Frame rate and bandwidth affected.• Accessing both Motion JPEG and MPEG-4 video streams simultaneously. Framerate and bandwidth affected.• Heavy usage of event settings affects the CPU load. Frame rate affected.• Enabled motion detection. Frame rate and bandwidth affected.• Heavy network utilization due to poor infrastructure. Bandwidth affected• Viewing on poorly performing client PC lowers perceived performance. Framerate affected.• Access by large number of audio clients using full-duplex mode. Bandwidthaffected.Optimizing your systemTo see the bandwidth and frame rate currently required by the video stream, the AXIS241QA/AXIS 241SA provides a tool that can be used to display these values directly in thevideo image.To do this, special format strings are added as partof a text overlay. Simply add #r (average framerate in fps) and/or #b (average bandwidth in Kbps)to the overlay.For detailed instructions, please see the online helpfor Video & Image > Overlay Settings, and thehelp for File Naming & Date/Time Formats.