
IP Security cameras with audio provided an added benefit when used with an NVR or XVR as the audio is not processed by the recorder and can be heard in multiple camera views as shown in this video. If you're using an analog security camera or HDCVI camera with built-in mic, Audio will be limited to each camera in full camera grid view. You can find audio IP security cameras from the following link:
XVR and DVR can be found here: