UPDATE to: Windows or Audio Driver applying Unwanted EQ to recordings made with Audacity 3.7.1

Audacity 3 Help Forum Windows
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Windows or Audio Driver applying Unwanted EQ to recordings made with Audacity 3.7.1

EUREKA!!!

I FOUND THE CULPRIT…

Dolby Access - Headphone Effect Toggle
Dolby Access - Headphone Effect Toggle1354×857 78.9 KB

And here is the result when I record white noise from the previously used noise generator website:

Audacity - White Noise - Spectrum after Dolby Access Effects Disabled - YES!!!
Audacity - White Noise - Spectrum after Dolby Access Effects Disabled - YES!!!935×581 114 KB

MUCH FLATTER! No strange dip around 650Hz, looks like the spectro off a studio monitor.

Whew.

Thanks for all your patience and attempts to understand what I was going through.

So how did I figure it out?

Well, I did a search for Dolby Access in the search field in the Win11 taskbar, and got goose eggs.

So I opened the scroll down for All > Programs, and right there, under D: Dolby Access.

Opened the program. clicked settings, and there it was: “Dolby Audio Effects…” Toggled ON by default. I toggled that motherphucker right off, and, all set.

I hope that my experience helps others with the same problem.