Carvin XP4 Instruction Manual - Page 12

EFFECTS ALGORITHMS PHASER & FLANGER (60-64) PHASER POSITIVE FEEDBACK (65-69) PHASER NEGATIVE FEEDBACK The Phaser or "phase shifter" is a classic effect. It uses phase cancellation to create a sweeping effect. This is great for solos and rhythm guitars when you need them it to stand out. PHASER PARAMETERS FF-Feedback polarity Allows you to select either positive feedback (thicker sound) or negative feedback (thinner sound). SP-Modulation speed Controls (LFO) speed of phase. PF-Phaser frequency This allows you to choose what frequency you want effected. Fd-Feedback Allows you to control how dramatic the effect is. (70-79) FLANGER A Flanger is very similar to a chorus. It is a modulation effect, but where it differs from chorus is its ability to loop back into itself. Before digital delay effects were available, the flanging effect could be accomplished by playing two tape machines in synchronization, then causing one tape to become slightly out of sync by dragging a finger on the tape reel the result is an airplane-like sound or sound reflections in a metal pipe. (70-74) positive feedback (75-79) negative feedback FLANGER PARAMETERS FF-feedback polarity Allows you to choose either positive feedback (thicker sound) or negative feedback (thinner sound). SP-modulation Speed Controls speed of the Flanger. DP-Depth Controls the intensity of the Flanger. Fd-Feedback Controls how much feedback is put back into the input of the module. Ib-input bandwidth Selects which part of the frequency is effected (between high and low). 12