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Classic compression

1

For a natural sound, use slower attacks (longer than 75ms), gentler ratios (less than 2:1) and always allow the compressor to ‘relax’ back to zero several times a bar.

3

For a thicker, denser sound, use faster attacks, medium ratios and lower thresholds. Be prepared to see much more gain reduction, though.

2

For a harder, punchier sound, use higher ratios and thresholds, but make sure you keep an ear out for distortion.

4

For an overstated, ‘pumping’ effect, use fast attacks, high ratios and a longer release time. Use it on a stereo buss to affect only part of the mix (eg bass and drums) and make sure the effect works in time with the music.