Thanks for sharing this. I also tried constructing an effect using ITD, ILD, biquad filters and delay lines in saqol, but I never got it to sound good (so that effect isn’t included in the web version): https://github.com/mTvare6/saqol/blob/main/crates/saq-dsp/sr...

Do you still have a working demo anywhere? The link in your post seems to be down, and I'd be interested in hearing it.

> two sound engines, one licensed from NEW AUDIO TECHNOLOGY

is this why i have to log in to an account to use Virtual Surround on gaming headsets