This field will indicate if the camera has an internal micro-sd slot. If audio recording is a requirement, you want to consider purchasing an IP Camera that has, "Audio In"ĭahua NVRs do have audio in and out, but those are used exclusively for two-way talk only, and cannot record audio to channel 1 or any other channel. If that is the case, you can easily identify Intelligent, or IVS capable, cameras by the "-I" appended to the end of the model. IVS features might be a requirement for your client. This is the physical range that a camera's angle can be adjusted. This will allow for a sub-stream that consumes less bandwidth when viewing the system remotely. Multi-Streaming is the ability to stream multiple video feeds from a single camera. Bandwidth Restrictions-If the video feeds need to be viewed or sent to a remote location, lowering the FPS will reduce the load on the Internet connection the system is connected to when viewing the system remotely.įrame Rate, or FPS, is how many individual frame a camera is capable of capturing per second. If your client requires a certain number of days to be recorded and stored, reducing the frame rate can help with meeting those requirements.ģ. Storage Restrictions-The higher the Frame Rate, the more space required for storage. There are other factors to consider, but a higher frame rate will reduce the distortion on fast moving objects.Ģ. Fast Moving Objects-The higher the Frame Rate, the clearer a fast moving object will appear. This value can be adjusted from 1 to 30.įrame rate is important to take into consideration for two reasons:ġ. The majority of Dahua's cameras will record at 30FPS by default. The higher the resolution of the camera, the further away the camera can be installed from the area you want to view. The first consideration when deciding on a camera is the resolution that will be required. Using the Disk Calculator Tool, you can determine approximately how much storage space will be required.ĭisk Calculator Tool Maximum Resolution:Pixel Density and Intended Target You do want to match a H.265 NVR with H.265 cameras if you are dealing with bandwidth constraints.Īll Dahua systems are compatible with H.264. So you don't need to worry about compatibility issues. Dahua systems that are H.265 compliant will also work with H.264 cameras. H.265 systems are starting to hit the market.
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