All the graphs in the world aren't any help to this article when it doesn't just provide a simple illustration of the effect at issue. — SMcCandlish Talk⇒ ʕ(Õلō)ˀ Contribs. 08:42, 2 March 2010 (UTC)
About "Thus only the (anti-causal) echo before the transient is heard" in the section on pre-echo. In commercially released music there is usually severe pre-echo before a sharp percussive transient. However, according to main-stream science, that ringing is inaudible to humans because the ringing occurs at 22 kHz. With a sharp cutoff filter at 4 kHz, the effect is likely very audible. Whether or not the pre-echo is heard depends on the cutoff frequency, and that distinction should be in the article. I don't want to change it right now because there might be a back-and-forth discussion, which I believe is what the talk page is for in the first place. Ohgddfp (talk) 20:56, 10 April 2021 (UTC)