Here's an interesting issue. The audio coming from Spotify desktop no longer appears in the system volume mixer (the program entirely, not just audio activity), and seems to be entirely bypassing EqualizerAPO. This observed behavior seems to imply that Spotify's audio is not going through the "system effect infrastructure". Aside from the troubleshooting that I have tried below, does anyone have any suggestions as to why a particular program (in this case, Spotify) would not list itself in the volume mixer and how to remedy the issue?
Further details/Troubleshooting:
- Spotify is affected by the main volume control.
- Spotify appears to be the only program that isn't appearing as expected in the volume mixer.
- If all playback devices are disabled, Spotify still plays.
- I have reinstalled Spotify several times, alternating between installing from the store and installing through the SpotifySetup.exe
- I have reinstalled my audio driver several times (this actually started after I reinstalled my audio driver because my mic was marked as "currently unavailable" but all it took to fix that is to swap back and forth the default recording device.
- sfc /scannow doesn't find any issues, this is a fairly new installation to begin with of Windows 10.
Link to image showing Spotify not appearing in volume mixer despite playing
Edit: I reinstalled Windows because that seems to fix everything. And it seems to have solved the issue described above. I will leave the question open in case someone knows what would cause a program to exhibit such behavior.