Intro to Ringshifter in Final Cut Pro
The Ringshifter effect combines a ring modulator with a frequency shifter effect. Both effects were popular during the 1970s and are currently experiencing something of a renaissance.
The ring modulator modulates the amplitude of the input signal using either the internal oscillator or a side-chain signal. The frequency spectrum of the resulting effect signal equals the sum and difference of the frequency content in the two original signals. Its sound is often described as metallic or clangorous. The ring modulator was used extensively on jazz rock and fusion records in the early 1970s.
The frequency shifter moves the frequency content of the input signal by a fixed amount and, in doing so, alters the frequency relationship of the original harmonics. The resulting sounds range from sweet and spacious phasing effects to strange robotic timbres.
Note: Frequency shifting should not be confused with pitch shifting. Pitch shifting transposes the original signal, leaving its harmonic frequency relationship intact.
For information about adding the Ringshifter effect to a clip and showing the effect’s controls, see Add Logic effects to clips in Final Cut Pro.