Windows 10 1903 - Audio Line-In won't switch with Default Audio Device

[monotony]

Since upgrading to 1903, my two line-in audio signals won't change whenever I switch the default playback device.

This is my setup:

• Windows 10 Pro 1903 System Build 18362.418
• Realtek ALC1220 onboard audio chipset
• two playback devices (speakers & headphones)
• two line-in devices (front mic used as line-in and back line-in for video game console and second pc audio)
• one usb audio soundcard with only microphone line-in used

Both line-in devices ignore any change to the default playback device up until reboot, whether I do this via script or manually. All other sound is forwarded to the correct audio device, as intended. I've tried three different audio drivers. I've also tested the usb audio soundcard line-in and it's the same result, even though it's a completely different sound device. This is why I'm absolutely certain that this is a Windows issue and not related to drivers. My research led me to this user, who had the exact same issue with the creators update in 2016. Sadly, without any solution for the issue:

Redirecting

answers.microsoft.com

These Reddit users have from the same problem, aswell:

https://www.reddit.com/r/Windows10/comments/d1ua7u

View: https://www.reddit.com/r/Windows10/comments/d1ua7u/linein_audio_will_not_follow_default_playback/


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