Config for Elgato HD60S or HD60X missing aux line audio input

[ClarkC162]

See old screen capture of config data, showing an option to toggle between HDMI audio and auxiliary line input audio on an Elgato HD60S capture device. I don't get audio from the line input on the device any more, and the configuration seems to have changed in OB 30.x versions, as there is no such configuration screen that I can navigate to any more. The Custom Properties tab no longer exists.

How do I specify anywhere in OB Studio 30.x that I want the Analog Audio (3.5mm line input on the HD60 device) rather than HDMI Audio?

 

[ClarkC162]

This config screen was reached in OBS 29.x by selecting the HD60S source, then Properties, then Configure Video.

 

[ClarkC162]

This config setting in OBS Studio 29.x was important. The default setting was HDMI audio. That gave me the audio from a camcorder that was supplying the video. Connection path was HDMI cable from camcorder to Elgato HD60S HDMI input. 3.5mm line input to HD60S was being ignored until I discovered the radio button shown above. Once I selected Analog Audio, it started taking the much better audio feed from microphones->sound mixer->3.5mm cable. So I screen captured the settings to consult later.

I was surprised at the time, because I thought the HD60S itself would override the audio track on the HDMI input with the audio from the 3.5mm input automatically. But it did not. The radio button setting above was required.

After updating OBS Studio to 30.x, the config disappeared, as the Custom Properties tab shown above was eliminated. So, how do you control the audio selection (HDMI vs. Analog 3.5mm) in OBS Studio 30.x?

 

[ClarkC162]

I notice that the config shown above was eliminated before 29.1.3, so sometime late in the 29.x lifetime it was removed.