I don't think this information is directly relevant to writing APU emulation, it's not really a video about how to create/synthesize digital signals properly. It's a defense of the fidelity of digital audio.
That said, while the material isn't new to me at all, I've had the "analog vs. digital" argument so many times over the years, and this outlines the important points very well, with great illustration. Thanks for sharing it! It'll probably be a good help next time that argument comes up in my life.
Yeah, maybe not relevant to the APU emulation, but great video nevertheless, as it explains some not very obvious things in a nice visual way and in simple words.
Very good video, thanks for sharing.
That video was nice. When he demonstrated shaped dithering it sounded really loud compared to flat dither profile... I got the impression that shaped was supposed to be less audible.
Shaped is louder, but in frequencies where the ear is less sensitive. Overall it's subjectively quieter, but if you're significantly more sensitive to sound over 10 kHz than the average listener, it may sound louder. I, for one, don't think I can hear over 17 kHz at all.
Shaped dithering seemed a rather unnecessary diversion, actually, since ultimately his point was that dithering doesn't really make a difference at 16-bit resolution.
Really interesting. Thanks for posting the link.