Clare Controls 16-Channel NVR with PoE, Руководство пользователя

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Appendix A
Network Video Recorder User Manual 171
If it is solved, finish the process.
If not, contact the engineer to do the further process.
When using the NVR to get the live view audio, there is no sound or there is
too much noise, or the volume is too low.
Possible reasons
:

Cable between the pickup and IPC is not connected well; impedance
mismatches or incompatible

The stream type is not set as Video & Audio
 The encoding standard is not supported with NVR
Solution
:
1. Verify the cable between the pickup and IPC is connected well; impedance
matches, and is compatible.
Log in the IPC directly, turn the audio on, and check that the sound is normal.
If not, contact the manufacturer of the IPC.
2. Verify the setting parameters are correct.
Select Menu > Record > Parameters > Record, and set the Stream Type as
Audio & Video.
3. Verify the audio encoding standard of the IPC is supported by the NVR.
NVR supports G722.1 and G711 standards, and if the encoding parameter of
the input audio is not one of the previous two standards, you can log in the
IPC to configure it to the supported standard.
4. Check if the fault is solved by the above steps.
If it is solved, finish the process.
If not, contact the engineer to do the further process.
The image gets stuck when NVR is playing back by single or multi-channel.
Possible Reasons:

Poor network between NVR and IPC, and there is packet loss during the
transmission

The frame rate is not the real-time frame rate

The NVR supports up to 16-channel synchronize playback at the resolution of
4CIF. If you want a 16-channel synchronize playback at the resolution of
720p, frame extracting may occur.