[ DVR/NVR ] v8.74, Dahua IPC-HFW5421E-Z, ONVIF, no audio or audio abnormal - 20180301

[Frank]

Issue:
Audio will be distorted or unable to be received when connecting DVR/NVR v8.74 to Dahua IPC-HFW5421E-Z through ONVIF protocol.

Solution (GV-DVRNVR_V8.7.4.010.zip):
1. Disable remote service on GV-DVR / NVR.
2. Close GV-DVR / NVR.
3. Download the patch file from the attachment.
4. Unzip the downloaded file.
5. Double-click the GV-DVRNVR_V8.7.4.010 program.
6. If the patch file is successfully installed, “Updated successfully.” will appear.
7. Restart GV-DVR / NVR.

Reference:
201801221002 [VMS] REMAIDER - Very Very Urgent : Gain option Disabled - NO Audio - NVR Version V8.7.4.0