Bode Frequency Shifter
It simultaneously shifts the frequencies up by the specified amount for one output, and down by that same amount for the other output, allowing a sort of stereo flanging effect when used subtly.
It's capable of both exponential and linear frequency shifting. The latter changes the content of a sound, converting its tidy harmonics into inharmonic overtones.
- "A Guided Tour of Beauty in the Beast" Keyboard, Nov 1986
- "What Comes Around Goes Surround" Wendy Carlos
- "Frequency Shifters for Professionals" Harald Bode, db, Mar 1976, pp. 32—36