Serge Wave Multipliers dynamically add new, harmonious overtones to the input waveform.Three completely different types of wave multipliers implemented in a single module change timbre in exciting new ways, and the Surge Modular Music System produces unique and interesting alternative signal processing and variety. You can synthesize a palette of new effects.
The upper section provides two modes that can be selected with the switch. In the'HI'position, the input signal'Square-Up' is performed, providing a rounded and flattened signal peak that resembles an overdrive tube amp. In the'LO'position, the module acts as a VCA for linear gain control.
In the middle section, a sine wave is input and a sweep of the 1st, 3rd, 5th, 7th, 9th, 11th and 13th odd harmonics is generated by operating the FOLD knob or applying the control CV.This has an effect similar to overblowing a wind instrument with one end closed. You can also mix the two signals before processing by using the second input.This module allows you to explore areas of timbre that go beyond ring modulation.
The Wave Multiplier section below performs non-linear wave shaping known as full-wave rectification, but with elaborate level-guaranteed adjustments.This circuit uses three full-wave rectifier sections linked in a precisely controllable format. By sweeping the VC input over the entire operating range, a smooth timbre transition using even harmonics is created.This basic sound contains many other partials, but the sonority is very rich and diverse.The white circled output is a'Squared Up'version of the black circled output, similar to the harmoniously enhanced pulse with modulation.