Lesson 1 of 6Practice desk · Runs in a browser, including a phone
Compression, in one picture
Read
A compressor turns the loud parts down automatically, and then you turn the whole thing up — which raises the quiet parts without letting the loud ones get away from you. That is all it does. The threshold is where it starts working, the ratio is how hard, the attack is how quickly it reacts, and release is how quickly it lets go. On a live vocal it is what keeps a singer audible when they drop to a whisper and controlled when they commit, without you riding the fader every line.
Do
On the practice desk, put gentle compression on a vocal and watch the meter during loud and quiet passages. Then raise the make-up gain and listen to what the quiet parts do.
Check
What does compression actually do to the difference between the loudest and quietest parts?
It reduces it — then you raise everything, so the quiet parts end up louder and more consistent while the loud parts stay under control.
