1-46 full-time audio synchronization, real-time surveillance, monitor, video, playback, network synchronization four workers, MODELASP-AV16ASP-AV24ASP-AV28ASP-AV32Operating systemWindows2000/XPCompressed formatH.264 Hard NipVideo input1624 -channel full-time28-channel full-time32 -channel full-timeAudio input1624 group audio frequency28 group audio frequency32 group audio frequencyVideo frequency ...