So I’ve listened to all the arguments from people who don’t understand the Nyquist theorem for why audio higher than 44khz doesn’t actually matter and you can’t hear it bla bla bla. From literal decades of personal experience of hearing the difference from the production side and knowing that from a physics perspective that it’s just not true, I present objective evidence that you can hear frequencies above 20khz.
First: a sample of a track I’m currently mixing/mastering
https://drive.google.com/file/d/1WvSAkDAlV4g0joqmlgJcVSDKrLBq3bkO/view?usp=sharing
Second: the same exact sample at the same exact volume with a 22khz tone applied.
https://drive.google.com/file/d/1LK6n5zd6QsrzcfW9n967NPsAzp2BRaA8/view?usp=sharing
If you can hear the difference (spoiler alert: you can), then you objectively can hear frequencies above 20hkz and by extension you must necessarily concede that there is a point to having waveforms capable of representing higher frequencies.
Hang on, are you sure youre not confusing this with sample rates? You absolutely cannot hear 44khz frequencies, but you can record at higher sample rates and, arguably, hear a difference in the amount of information being recorded (thats debatable, but much more realistic than hearing a frequency at 44khz or 96khz).