Dahua IPC-HDW5231R-ZE - audio out of sync

S

sloth

n3wb
Jul 14, 2019
5
0
sk
Hi, I bought Dahua IPC-HDW5231R-ZE and I tried to make a direct stream to youtube/twitch via rtmp. Everythink worked fine but after a few minutes audio/video started to be out of sync. After few hours of streaming, there is several seconds audio delay. I tried to change video/audio encode mode, bitrate, framerate, but nothing works for me. Has anyone similar experience or maybe some solution?
 
sloth said:
Hi, I bought Dahua IPC-HDW5231R-ZE and I tried to make a direct stream to youtube/twitch via rtmp. Everythink worked fine but after a few minutes audio/video started to be out of sync. After few hours of streaming, there is several seconds audio delay. I tried to change video/audio encode mode, bitrate, framerate, but nothing works for me. Has anyone similar experience or maybe some solution?
Click to expand...
Maybe the obvious question: if you register to local SD card/nvr/... does it also show the same symptoms?
 
I'll try it but I don't have a SD card in the camera right now. But if I watch the camera stream in the browser (through the camera UI), there is no audio delay.
 
sloth said:
I'll try it but I don't have a SD card in the camera right now. But if I watch the camera stream in the browser (through the camera UI), there is no audio delay.
Click to expand...
I suggest you use a (temporary) SD card, simply to verify if there is a (hardware/software) fault in the cam. If so, you can call in warranty. If it's working correctly, you could try to call in warranty on youtube, but I'm sure you'll fish behind the nets :)
 
catcamstar said:
I suggest you use a (temporary) SD card, simply to verify if there is a (hardware/software) fault in the cam. If so, you can call in warranty. If it's working correctly, you could try to call in warranty on youtube, but I'm sure you'll fish behind the nets :)
Click to expand...
warranty because it cant upload to youtube on a surveillance camera, Id hang up the phone on that customer.
 
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I think the problem is in the camera time. If I set NTP server in settings, everythink works fine.
 
Hello, I have similar problem. I tried your way with NTP server, but for me it doesn't work. Audio is out of sync.

I've tried the firmware V2.800.0000005.0.R.190325 and V2.800.0000010.0.R.190807 - after few hours audio is delayed.
In firmware V2.800.0000013.0.R.191202 - after few minutes video is delayed.
 
Hi, unfortunately changing NTP setting actually didn't help. At some point after restarting camera, audio got delay. Didn't find a solution.
 
Things to try:
  • Try using low latency settings in Youtube.
  • Lower frame rates.
  • Try streaming direct to YouTube from camera.
Troubleshooting steps from Twitch:

* Edited by admin * Too many clickbait links, some risky driver update links, almost all copied content not relevant to the posted problem.
 
Last edited by a moderator:
Thanks for editing....
 
Hi,
5.4.2020 I bought Dahua IPC HFW5631E-ZE with firmware V2.800.0000010.0.R.190807. After one hour is audio (on YouTube) delayed around 2 seconds. I try different FPS, audio sample frequency, bitrate and another settings in menu. Nothing solved problem. When I switch off NTP, audio delay was 2 seconds from beginning, but constant for all live transmission. I switch off many settings, multicast and other functions.
2.5.2020 I load firmware V2.800.0000005.0.R.190325 (PN). Again 2 seconds constant delay. 4.5.2020 load backup settings from 23.4.2020 and problem solved.
Audio perfect sync with video for all time.
My NTP server is ntp.cesnet.cz (I'am from Czech republic).
I recommend:
1) Flash new firmware
2) Load default factory settings
3) Set NTP server
Thanks for your advices to discover right way. Good luck
 
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