[Sohcahtoa82]

I remember playing 44khz 16-bit stereo MP3s encoded at 128 kbit/sec on a 133 Mhz 486.

It gobbled like 90% of the CPU and I had to make sure I gave it a pretty large buffer so it didn't stutter when an app claimed CPU for more than a second, but it worked.

[justsomehnguy]

Depends on the vendor and a cache amount. But yes, 22KHz was a thing for a simple Notepad activities at best and at 11KHz you didn't care much 'cuz it wasn't that different from the usual.