Compressors, depending on how they are set (eg, very, very short attack time), act as limiters which will reduce the amplitude of a transient sound. I assumed t

Compressors, depending on how they are set (eg, very, very short attack time), act as limiters which will reduce the amplitude of a transient sound. I assumed this is what the article was referring to based on the perceived result. Since transients tend to be perceived as louder, you're going to notice when they're not there.