SunnyCool,

For the benefit of those who are still a little unsure as to what a compressor does, it simply reduces the difference between the loudest and quietest parts of a piece of music by automatically turning down the gain when the signal gets past a predetermined level. In this respect, it does a similar job to the human hand on the fader -- but it reacts much faster and with greater precision, allowing it to bring excessive level deviations under control almost instantaneously.

Dennis