4Chs卡、A/V捕卡、硬件压缩

4 Chs Card, A/V Capture Card, Hardware Compression CardModel Number: KDM-404H Introduction: 1) Video H.264 standard, audio G.726 standard, high compression ratio, high image resolution, clear sound 2) Pure hardware audio /video real-time compression and compound, support OVERLAY and DIRECTDRAW multi-channels review, do not engross CPU resource 3) Video input: 8 channels compound video signal / single channel card single video signal 4) Support system: PAL /NTSC 5) Video capture rate: PAL 176*144 352*288 704*288 512*288 704*576, NTSC 160*120 320*240 640*240 416*240 640*480 6) Frame ratio: single channel 25F/S (PAL), 30F/S(NTSC) 7) Video output code rate: 20Kbps-2Mbps 8) Audio sampling rate: 8KHz 9) Audio output code rate: 24Kbps, support 16Kbps 10) Strong compatibility, low consumption, high dependability 11) Video code rate can be adjusted between 20Kbps-2Mbps, 40-100M/hour/channel 12) Exactly control various compression parameter, dynamicly adjust brightness, saturation, contrast and other video parameter 13) Adjust video frame between 1-25Fps(PAL), 1-30Fps(NTSC) 14) Support capturing original image, storing in BMP format, high image definition 15) Re-play multi-channels image at the sam time, no any pause, support fast-play, slow-play, single-frame play, single frame capture and part magnify 16) Output format could be compound stream or video stream 17) Provide part amplify function, encoding more than 16 channels at the sam time 18) Freely adjust size of preview window 19) Adjust compression frame III, IPP, IPB, support I, B, P frame compression, image comression rate is bigger 20) Dynamic take out frame during compression, and resume at any moment during compression 21) Supporting watermark prevent-fake technics 22) Provide real-time audio monitoring interface 23) Especially suiltable for transfer via WAN, support audio /video real time transfer, support dual code steam function, LAN delay less than 1 second 24) Support CBR/VBR working mode, in VBR mode, could set max. change-position rate peak value, code stream adjustable 25) Support muil-windows dynamic detection 26) Support hardware character, time repeat OSD function, support Logo repeat 27) Support part mosaic keeping out video area 28) Support number watermark function 29) Support muilti-region, muilti-sensitivity target detection 30) Low transfer delay, <1second, support auto resume, client-end can realize 16 channels real-time play 31) Able to visit server via application software and IE 32) Support dynamic domain name 33) Support VPN visit 34) Compatible with Windows Media Player format 35) Support Windows2000/XP system