How do I monitor OBS audio from Siig Honetech USB VHS Video Grabber capture device through VoiceMeeter Potato

[TLH]

How do I monitor audio from Siig Honetech USB VHS Video Grabber capture device through VoiceMeeter Potato while I am recording a video/audio from a VHS deck? Clearly I'm a newbie making this more complicated by using VoiceMeeter - but I was hoping to both live stream the VHS Video tapes with voice over, and additional video content, and record the live stream session. Then at a different time, I intend to simply digitize the VHS tape.

Hardware & Software: A cheap SIIG / Video Grabber USB2.0 Capture hardware using OBS on a Windows 10 desktop, w/ Voicemeeterset as the default, w/ 1 Usb headset + mic in for voice over and headphone monitoring, an another output to the desktop Realtek device driver (WDM) to speakers. In other words, I route all Audio on my computer hardware and virtual input and output sources through VoiceMeeter Potato - then route and mix audio sources to headphones, speakers, OBS (if recording) or live streams as needed.

So, how do I route the USB video Grabber audio that's coming from the capture device and being metered in OBS - and send that audio to VoiceMeeter - either VAIO, AUX or VAIO3 so I can monitor it through headphones or speakers WHILE I record the VHS video and audio in OBS - or live stream it?

Here's how OBS is configured:

In OBS, the video source is set to the VHS deck Video Grabber and displays correctly as expected. (surprisingly well in fact) . The video USB Grabber's audio source is also automatically being routed and metered as expected in the OBS Audio Mixer - so I see there is an active audio signal with the same Source Name.

I didn't have the option to capture the USB Video Capture device's Audio signal by creating a separate audio source in OBS - nor can the audio from the USB video Grabber device be routed to VoiceMeeter. The audio and the video come combined from the USB device into OBS only - which I can't seem to modify.

Under the OBS Audio Mixer, I set the Video Grabber Audio Channel Advanced properties to "Monitor and Output" - and have all Tracks checked.

Under OBS Settings, I tried setting the Advance Audio Monitoring Device to each of the three VoiceMeeter Inputs listed above - one at a time and clicked Apply each time - but never heard (or saw) the USB Video Grabber audio signal through VoiceMeeter - and therefore no audio through speakers or headphones.

Red Herring? However, in OBS, under the Mixer's active audio channel from the video, I clicked the cog wheel and selected "Properties: (which opens that new window to display the video, w/ options to select devices and change formats etc) - then scroll down to the bottom to "Audio Output Mode" - the default setting is Capture Audio Only - BUT if I change that to "Output Desktop Audio (Wave Out)" I can then hear the audio - routed through directly to the external speakers (through the computer's Realtek driver)

 

[koala]

Since you also simply want to digitize VHS tape some time, I propose you always digitize your VHS tapes, regardless it you want to comment and live stream it or just record.
Then you have everything on video file and are free from the hassle with handling the VHS tapes. You can concentrate on just playing back and mixing video files and comment, if you intend to stream some file.

In case you insist on directly stream what you're recording and insist on using an external mixer (which is a huge overhead and not required), open the properties of your capture device in OBS and scroll to the bottom. There is a "Audio Output mode" dropdown option. With "Capture audio only", you output the capture device audio to the internal mixer of OBS. With the two "Output desktop audio" options, you output the audio to the default desktop audio device of your PC. Additionally, there is a "Custom audio device" checkbox, and if you check it, a drop down list is added at the bottom where you can choose an external audio device where the audio is output instead of the default desktop audio device. For example, you can select one of the virtual audio devices from Voicemeeter to feed it into Voicemeeter.

Take note of the terminology within OBS: "Output" some audio means OBS is adding that audio to the internal OBS mixer and in consequence it is added to the stream or to the recorded video file. "Monitor" means, OBS is playing back that audio to the monitoring device you set in Settings->Audio->Advanced->Monitoring device. "Output" and "Monitor" are independent from each other. If something is output, it doesn't automatically mean it's also monitored, so a non monitored audio is silent on your PC, but it's actually included in the stream or recording. Monitoring audio means you need to take care to not create roaring feedback loops. This can happen if you record the monitoring device with OBS and also monitor it. OBS tries to detect this situation and mutes monitoring in case. If you record the "default" device and monitor to the "default" device, chances are high for this situation.

 

[TLH]

Since you also simply want to digitize VHS tape some time, I propose you always digitize your VHS tapes, regardless it you want to comment and live stream it or just record.
Then you have everything on video file and are free from the hassle with handling the VHS tapes. You can concentrate on just playing back and mixing video files and comment, if you intend to stream some file.

In case you insist on directly stream what you're recording and insist on using an external mixer (which is a huge overhead and not required), open the properties of your capture device in OBS and scroll to the bottom. There is a "Audio Output mode" dropdown option. With "Capture audio only", you output the capture device audio to the internal mixer of OBS. With the two "Output desktop audio" options, you output the audio to the default desktop audio device of your PC. Additionally, there is a "Custom audio device" checkbox, and if you check it, a drop down list is added at the bottom where you can choose an external audio device where the audio is output instead of the default desktop audio device. For example, you can select one of the virtual audio devices from Voicemeeter to feed it into Voicemeeter.

Take note of the terminology within OBS: "Output" some audio means OBS is adding that audio to the internal OBS mixer and in consequence it is added to the stream or to the recorded video file. "Monitor" means, OBS is playing back that audio to the monitoring device you set in Settings->Audio->Advanced->Monitoring device. "Output" and "Monitor" are independent from each other. If something is output, it doesn't automatically mean it's also monitored, so a non monitored audio is silent on your PC, but it's actually included in the stream or recording. Monitoring audio means you need to take care to not create roaring feedback loops. This can happen if you record the monitoring device with OBS and also monitor it. OBS tries to detect this situation and mutes monitoring in case. If you record the "default" device and monitor to the "default" device, chances are high for this situation.

very helpful input! especially the part about streaming the pre-digitized video instead of using the USB capture. I simplified the entire settings by removing voicemeeter from the configuration. Thank you for taking the time to respond.