Windows 10: Logitech C920 Webcam keeps auto-adjusting mic volume

Hi, my logitech c920 webcam that i use to chat on skype; keeps auto adjusting its volume in windows (attached - sound properties) from a good sound volume of 50% to muffling and distorted levels of 80%-90%.

Ive checked the logitech software.

I dont know where else to look?

:)

 

Logitech c920 webcam no longer works.

I use a Logitech c920 webcam with my Dell 5567 laptop.

Setup is Windows 10 version 1709, latest.

After the latest Windows update, when I open the Logitech c920 software interface the webcam is not detected. But if I click on Quick Capture, I can see images but the webcam controls and advanced settings are no longer available. When I open up Preferences,
the microphone setting does not function.

I've already done a complete reinstall, several times, but to no avail.

If I use Skype and select the c920, again the imaging/video works. But also cannot open the c920 webcam settings from within Skype video settings.

Is there a fix for this?

 

Logitech C920 Webcam


just to add more spookiness, the Settings option in Skype shows that the C920 is being used:





..so it will run as an app from within Skype, but not as a stand-alone program via the Desktop Shortcut
- which is a bit odd..

I uninstalled the XBox App from the Start Screen, just in case the webcam was defaulting to that software,
- but no luck yet.. (??)

 

Logitech C920 Webcam


I've just noticed that the Windows Firewall includes an item called "Windows Camera"



- I wasn't aware that this even existed..
- is it possible that the Logitech Webcam software is defaulting to this location?