- Dynamic Range Control
- We can use Compression to control the peaks of an audio signal, reducing volume fluctuations and, after gain, producing higher average levels.
- Sound Shaping
- Compression can also be used to alter the envelope of a sound
- Sound Coloring
- Lastly, Compression can be used to change the tone of a sound.
When working with a single short sound like a kick or snare, compressors can change the shape of the sound in dramatic ways. For example, we can accentuate the click at the front of a kick, or increase the sustain on a snare. For denser material like vocals, we can use a compressor to even out the volume over time, helping to keep the part at a steady level to fit the mix.
In both cases, we can use a compressor to color the signal passing through it.