What Compression Technology DVR Used

• Currently DVR used lots of mainstream compression technology on the market: MPEG-2, MPEG-4, H.264, M-JPEG, and MPEG-4, H.264 is the most common compression method; from compression card, it is divided into two kinds of compression: soft and hardware compression, soft compression greatly influenced by the CPU, most can not do full real-time display and recording, it is gradually reducing and eliminating hardware; from the camera number of inputs is divided into a road, 2-way, 4 way, 6-channel, 9 Road, 12 Road, 16 Road, 32 Road, or even more; Overall, the system architecture can be divided into two major categories: Based on PC architecture, PC-type DVR, and from the PC-based standalone DVR.