Translations:Minimum delay/7/en
Jump to navigation
Jump to search
What are all-pass systems? Causal systems occur that have no log gain, and such systems are called all-pass systems. There are two kinds of all-pass systems. The first kind is the trivial all-pass system, which has no delay. Because a trivial all-pass system has zero log gain and zero delay, we pay nothing for nothing, which is fair. The other kind of all-pass system is the nontrivial all-pass system, and it does produce delay. Because a nontrivial all-pass system has no log gain but does have delay, we pay something for nothing, which is unfair (Robinson, 1962[1]; Robinson and Treitel, 1965[2]).