All applications shown on this page may also be performed with the original ModMix.
See More Applications including ModMix II rectification.
Both the Modulators in ModMix™ perform four quadrant linear multiplication and sum and difference frequencies will be obtained from two input frequencies.
Here the output a mixer is shown with the input signals mixed in 10dB lower than the Modulator output. The upper spectrum shows the result of multiplying 400Hz and 1kHz sine waves. The lower spectrum shows the result of changing the 1kHz to 1200Hz.
A Modulator output will contain only the two sidebands and is known as balanced modulation. Amplitude modulation (AM), normally produced with a VCA or two quadrant multiplier, contains the carrier signal and the two sidebands. The ModMix mixers allow either or both the carrier and modulator signals to be combined so all variations of AM, BM/RM and more are possible.
Ganged Filter Control
Stereo FX Processing
Segueing and Crossfading
N.B. An external quadrature oscillator produces Sin(B) and Cos(B) for the frequency shift amount and a 90 degree Phase Shift Network is required to produce Sin(A) and Cos (A) from any signal.
Bowing and Percussive Envelopes
This was a classic VCS3 technique called “bowing” the Ring Modulator. Only changes in the control levels produce a signal output. The A and B Modulators have different time constants with A being three times longer than B.
Mid/Side Encoding and Decoding
Stereo Width Control