how could capitol get away with releasing those horrible versions of "Warmth of the sun" back in the 80's on cassette and early cd releases where the song had a very annoying loud "S" everytime they said a word with an "S" in it? also why didn't they fix that to make it sound better?
because that's how the recordings sounded on the master ... the LPs would have been run through a high-frequency limiter/de-esser because you can't cut these sounds to vinyl (they just translate as distortion). since tape and CD do not have these restrictions, this was not necessary. if the "S" sounds were considered unacceptable, they would have to send the whole mix through a processor, which affects the sound quality. probably not an issue on cassette, but CDs were being touted as 'crystal clear' at the time ... so better to leave it untouched and retain the transparency I suppose.