How/why does Dolphin generate sound frequencies above 17 KHz?

[nothingtosay]

That looks good. The attached picture is what I'm getting when I do it with your fix. I'm using LLE recompiler and XAudio2 as well. I've checked with the system menu, Shiren the Wanderer, Kirby Air Ride, and Mario Kart: Double Dash and I get spikes in the spectogram with all of them. How do recordings during gameplay look for you?