In this video Bartosz talks about various aspects of digital audio specifically with regard to the differences between CD quality and hi-res audio.
NOTE: At 08:08 we encourage you to make the experiment. Unfortunately, after posting the video we learned that all high frequencies in the videos are removed by YouTube. You can still check how high your hearing goes using various available online tone generators such as:
https://onlinetonegenerator.com/
https://www.szynalski.com/tone-generator/
Simply search for "Online Tone Generator".