November 9, 2003
LFO [ Edit ]
Low Frequency Oscillator.
Almost all soft synths seem to have at least of these. If you have a sound that goes up and down in pitch or volume, at probably is running through an LFO. It’s called low-frequency because it oscillates on the order of seconds (1 Hz is one cycle per second) or parts of the beat. This is in contrast with, say, a concert A which oscillates at 440 Hz, or 440 times per second.
LFOs are used, in general, to change sounds over time, and can usually be synced to the tempo of a song. There’s way more to it than this, but that’s why they matter, and why you always see that acronym everywhere.Posted by Joe | TrackBack