Here is how to fix a video capture device that records video and audio, but does not play sound while recording.
1. Click > [Settings] in Controls Panel (Lower right)
2. Click "Advanced" in Left Ribbon panel
3. Click [Audio] > Audio Monitoring Device [drop down]
Select a device other than "Bluetooth Headphones (2- Bluetooth Audio)"
Example:
Select "Bluetooth Headset (2- Bluetooth Audio)"
4. Click [Apply] in lower right corner
5. Click [OK] in lower right corner
The A2DP Profile for some reason on OBS 21.1.2 (64 Bit) does not down sample the 48 Khz Line Input for the CVBS Composite or S-Video Inputs properly. When it defaults to "Default" or "Bluetooth Headphones (2- Bluetooth Audio)" the Monitoring audio cuts out and goes silent. Also the "Default" takes out not only the OBS video capture source, but any other Audio source on the Desktop, including Browsers playing video or other Application sources.
I suspect the source code for OBS 21.1.2 may not be initializing the windows mixer properly or not handling down sampling properly.. or the A2DP profile is just not working properly.
In any event the change is immediate and does not require restarting the application and all other audio sources are mixed and can be heard. Although with this video capture device, the video device audio input is not selectable and it captures the Desktop mix instead
Also a "Custom" audio device that selects the CY3014 device must be used or there will be no audio capture or monitoring.
