An important goal of this forum is to promote audio science. Over the years I've posted a number of audio tests on my web site, and many of them invite readers to listen and email me their choices. Some of these are ongoing surveys, where I reply to the emails I receive with the correct answers. Other articles let you listen and decide for yourself what's audible and what's not.
I also made two videos that explain audio testing and equipment specs in detail. These videos are based on the workshops I presented at AES conventions in New York City: