

A solid-state compressor for example, might predominantly add even-order harmonics, while a tube compressor could impart more in the flavor of odd-order harmonics. To add color or tonal alteration: Hardware compressors often have a desirable, useful tone to them, as a result of their circuitry. Sidechain compression is one way of doing this, though you can also shape groove without an external sidechain input, particularly on a looped phrase you can change the feel of a drum kit or a bass part, for example. To alter the groove or feel of an instrument: You can use a compressor to shape the groove of an instrument in a variety of ways. You can make drums smack harder with the attack and release parameters. To shape the front end of a transient: Using the attack and release control, you can really change the flavor of how a compressor hits the first percussive signal in its path. Think of a vocal that grows too loud at the end of each phrase. To control a signal’s overall dynamics: The signal varies too much between loud and quiet sections, and we want to restrict its dynamic range. Here are some basic reasons to use a compressor: Now let’s cover some basic reasons to use a compressor before we move on to our use cases: Why do we compress?
