Dual Ring Modulator

Module A-114 contains two separate ring modulators. A ring modulator outputs the product (Multiplication X • Y) of the signals at inputs X and Y. It's similar to a VCA, but whereas a VCA only responds to positive voltages at the inputs (2-quadrant multiplication), the ring modulator responds to both positive and negative voltages (4-quadrant multiplication).

The ring modulator thus provides a refinement of amplitude modulation (AM). Ordinary amplitude modulation will output the original carrier frequency fC as well as the two side bands (fC - fM, fC + fM) for each of the spectral components of the carrier and modulation signals - but ring modulation cancels out the carrier frequencies, and just lets the side-bands pass to the output (see Fig. 1).

A ring modulator is used for the production of bell-like sounds, alien voices, or just to produce new timbres.

For more detailed information please look at the English user's manual

http://www.doepfer.de/a114.htm

  • 40 mA +12V
  • 40 mA -12V
  • 0 mA 5V
  • 40 mm deep
  • Ø 3.52 (25 Votes) Average Rating

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$99 submitted Oct 6th 2012, 13:36 by MacroDX | last Change Sep 29th 2016, 02:03 by acgenerator

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