How to get 2-way audio working on VIKYLIN 6MP camera using web browser (is this possible?)

[sumguy]

I picked up a VIKLIN 6MP N601L-IR turret camera recently and I'm putzing with it through a browser. It wants me to download / install some sort of plugin (PlayerOcxSetup.zip) but so far I haven't installed it. I can interact with the camera well enough using a browser (FF) so I'm not sure what the plugin is for. What I don't see in the camera live view is any sort of audio control. In the live view I'm not hearing any audio, no audio-enable button.

I've never had a 2-way audio camera before. The Dahau cameras I have all have mic's and their audio is controllable and playable through the browser. How does one send audio to these camera with built-in speakers? Using a browser?

 

[Jim_OS]

plugin (PlayerOcxSetup.zip) but so far I haven't installed it. I can interact with the camera well enough using a browser (FF)

First of all: I have no idea about VIKYLIN cameras.

If you use Dahua cameras - as I do - you are likely familiar with the plugin and know that Dahua cameras still "require" it today (even with Web version V5.1.x) to display all the options in the Web GUI. This is the ActiveX plugin for the Internet Explorer browser. Since I assume VIKYLIN cameras are OEM models or clones of Dahua cameras, you will only be able to see all the camera's Web GUI functions and options when using the old Internet Explorer on Windows.

So, you should:
1. First, check whether you have enabled audio in the camera's setup menu.
2. Use Windows and the old Internet Explorer (if available), install the plugin as an administrator, and then observe how the Web GUI view changes compared to the view in Firefox.

Alternatively, you could try using the VIKYLIN app.

 

[TonyR]

@sumguy, in addition to the above should you want to reveal and use Internet Explorer in Win 10 or 11, there's this:

How to enable native Internet Explorer in Windows 10 and 11:

• Open Notepad:
• Copy then paste the single line of code below into Notepad:
• CreateObject("InternetExplorer.Application").Visible=true
• Save as OpenIE.vbs
• Make sure the the file name ends in .vbs not .txt, If it ends in .txt you must rename to .vbs
• Create a shortcut to the above file and double-click it anytime you want native Internet Explorer.

 

[sumguy]

My most "recent" or newest Dahau is a IPC-HDW2431T-AS-S2 that is running firmware dated 2020. My main home PC is running Win-7 32 bit. On that PC, I can fully interact with all my Dahau cameras (all turrent cameras) using IE 10, I don't think I ever had to install a plug-in to do it. On this win-7 system my main browser is Firefox 104, and I can bring up the Dahua web-ui with it, live video works, but there is no audio.

Regarding this Vikylin camera, I did run the PlayerOcxSetup.zip (it decompresses to PlayerOcxSetup.exe). I think the main point of that was to register the activeX control NsdPlayerV4.ocx. The install created the folder Program Files\NsdPlayerV4, in which are a variety of DLL's and an exe named pwplayer.exe. I'm not sure what that application is, or how it gets invoked. Something about this installation or OCX registration failed right at the end, it could have something to do with trying to install 64-bit software on a 32-bit system. In any case, now with both IE and FF when I access this Vikylin camera, the web-ui is showing me audio buttons I wasn't seeing before, including a talk-back button, but where the video image should be is just a big > play button, so no video. So I'm going to have to roll this back somehow.

The phone app is called "remoteyes". For it to work, the camera has to register with a cloud service that is accessed by the app. If the camera is registered, on a sub-menu it will show a CID or some such number that you enter into the app. If the camera is not registered, the app won't find the camera even when told to search for the camera on the local lan. You can't supply the lan IP of the camera (the app doesn't ask or let you enter an IP address). The info / instruction sheet that came with the camera gives this URL: www. ourdownload. tech - but a heads-up - the site certificates have expired as of last month so your browser will not want you to visit. I bypassed the warnings and got a webpage that really doesn't identify a brand ID or manufacturer, about the only thing it says is "compatible with hikvision protocol". The instruction sheet mentions some Windows / Mac apps called "Settings tool" and SADP, those apps as well as LMS, and VMS software are shown on the web-page as download links. Also shown are the QR codes that point to the phone apps for Remoteye and Videolink. I've downloaded these various Windows apps, I'll putz with them later.

One thing the camera does show are Onvif, RTMP, RTSP, RTP, and the P2P Mobile View setting that is supposed to be enabled for cloud thing and the Remoteye app to work. There is also a HIK option, which you can enable/disable and set a port and identity authentication, I don't know what that's for but maybe it's to enable a Hikvision streaming mode?

RTMP shows a configuration page where it seems you can setup a live-stream to you-tube, complete examples of what the URL's look like.

RTSP is a setup section for rtsp streaming. I was able to take the given example URL and throw it into VLC (play network stream) and yes it played just fine, with audio from the camera.

For what I want to do with the camera, for now, the VLC method for remote viewing will work. Viewing the camera through a phone was not really the intended use-case here, but eventually if I can't find any other way to make audio talk-back work I may have to go through the app to do this.

 

[Jim_OS]

First of all: VIKYLIN sells OEM models from both Hikvision and Dahua. I don't know exactly which model you have, but it appears to be a Hikvision OEM model - something I can't really comment on.

Regarding that:

My main home PC is running Win-7 32 bit. On that PC, I can fully interact with all my Dahau cameras (all turrent cameras) using IE 10, I don't think I ever had to install a plug-in to do it.

Normally, with Dahua cameras, you only get the full range of icons and settings displayed in Internet Explorer if you use the plugin. However, with an old 32-bit version of Windows 7, I’m not entirely sure what would or wouldn't be displayed in IE without the plugin. It’s been well over ten years since I last used Windows 7. I was using Dahua cameras back then, too, and as far as I recall, the plugin was required even then - though I can't be 100% certain.

Since I have a Windows 11 VM running here with the old IE installed, I just tested this out:

When you access the WebGUI 3.x of a Dahua camera using Firefox, this is what it looks like. And yes, audio works in Firefox this way too, provided the correct codec is selected.



If you access the WebGUI 3.x on Windows 11 using the old IE without the plugin installed, the corresponding notification appears, but you can already see the additional icons/buttons for specific actions/functions in the top-right and bottom-left corners.



Once you install the plugin, it looks like this, and you can also see the camera's live stream.


The situation is similar when the Dahua unit uses WebGUI 5.1.x. There, too, a notification appears regarding the plugin, indicating that it should or must be installed.

Note: Since I have been using Linux rather than Windows for years - and used Firefox even back in my Windows days - I am well aware of what is and isn't displayed in Firefox without the plugin. And yes, I do not need Windows, the old Internet Explorer, or the plugin to use my Dahua cameras and NVR normally. However, there are certainly users who find certain features missing when using Firefox or Chrome and consequently continue to use the old Internet Explorer.

But all of that was really just for general information and doesn't help you with your VIKYLIN camera anyway - assuming my hunch is right and it turns out to be a Hikvision OEM model. I can't say why the audio problem is occurring, though, precisely because I have no experience with VIKYLIN cameras.

 

[jeremyx]

Since the info sheet says "compatible with hikvision protocol" and lists SADP, that HIK option is most likely what lets the camera talk Hikvision's own SDK protocol on port 8000 (the one Hikvision NVRs and their Windows client use), rather than anything to do with streaming. If you enable it, you could try adding the camera in the VMS software from that download page, or in Hikvision's iVMS-4200, as a Hikvision device using the IP, port 8000 and the camera's login. Those desktop clients usually have a two-way audio button on the live view, so that might get you talk-back on the PC without the browser plugin or the cloud app. On a 32-bit Win 7 box you may need an older release of iVMS-4200.

For the rollback, NsdPlayerV4 should show up in Programs and Features. If it doesn't, running regsvr32 /u on the NsdPlayerV4.ocx file from an admin command prompt will unregister the control, and the web UI should go back to how it was.

 

[sumguy]

First of all: VIKYLIN sells OEM models from both Hikvision and Dahua. I don't know exactly which model you have, but it appears to be a Hikvision OEM model - something I can't really comment on.

Regarding that:

Normally, with Dahua cameras, you only get the full range of icons and settings displayed in Internet Explorer if you use the plugin. However, with an old 32-bit version of Windows 7, I’m not entirely sure what would or wouldn't be displayed in IE without the plugin. It’s been well over ten years since I last used Windows 7. I was using Dahua cameras back then, too, and as far as I recall, the plugin was required even then - though I can't be 100% certain.

For my above-mentioned Dahau camera (web version V3.2.1.857734) this is what I see in IE-10 on Win-7/32-bit (not logged in, playback button not shown):



This is what I see in FF 102.4 (logged in, playback button is shown):



The message at the bottom says "It fails to support current audio config". The audio is configured as AAC mode, 16000 sampling frequency. Not a big deal but what setting does work with FF ?

But ya I can see there are no buttons on the bottom left, and a bunch missing in the upper right. Protocol drop-down also not shown on top left. Also, on FF, when I bring up the camera there doesn't seem to be any video (just a swirling circle) but if I log in then the video is there.

Is there a way to access these Dahau cameras on a browser that directly logs you in, using an appropriately-formatted URL?

 

[Jim_OS]

Regarding point 1: With these settings, I also get audio via Firefox on Linux.



Regarding your second question, I’m not entirely sure what you mean. Once you’ve accessed the camera’s web GUI, you’ve already logged in, so you should see the live stream displayed directly in Firefox as well. At least, that’s how it works for me on Linux using Firefox.

As a bit of extra information: whenever I’m sitting at my desk in front of the PC, I also keep a live stream from one of my Dahua cameras - the one covering the yard - displayed in a VLC window on my desktop. It looks something like this:



To do this, I simply open the RTSP stream URL (e.g., rtsp:/name:[email protected]:554/cam/realmonitor?channel=1&subtype=0) via a link on the bookmarks toolbar. This causes Firefox to launch VLC and display the live stream in a separate VLC window.

However, for Firefox to display a stream via port 554, the port must first be manually allowed again. I actually created a post about this in the German Synology forum back in 2024.: FYI: Firefox 122.0 blockiert (RTSP-)Port 554

Feel free to take a look at it if you're interested. You should certainly be able to find other instructions for this online as well. But I can't say for sure if this works the same way on Windows, though.

But as previously mentioned, I can't tell you what will work with any given old version of Windows and Firefox. In any case, the web version of the Dahua camera doesn't matter here, since I use various Dahua cameras with widely differing web versions. Currently, these are:

• WEB Version V3.2.1.1969242.P9
• WEB Version V3.2.1.1082304
• WEB Version V3.2.1.2527956.R4.2510.9A.NR
• WEB Version V3.2.7.145309
• WEB Version V5.1.0.2403546

FYI: I’m currently using the Waterfox browser, which is based on Firefox; however, the method I described works exactly the same way in Firefox.

 

[sumguy]

Regarding point 1: With these settings, I also get audio via Firefox on Linux.

Yes, if I set the audio to G.711A/8000 then yes I can hear audio in FF on win-7. BTW, G.711A is a voip (telephone) quality audio codec.