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Ring Modulator
A Ring Modulator is a device which takes two signals and multiplies them
together into one resultant signal containing only the sum and difference
frequencies of the two input waves. The original frequencies are not output!
However, every harmonic of each signal multiplies every other, according to its
amplitude. As a result, ring modulators tend to generate a lot of non-harmonic
frequencies which can sound very bell-like or out of tune.
Left
(pri)
200 Hz
Right
(sec)
800 Hz
Result
600 &
1000 Hz
This diagram shows the result of Ring Modulating two sine waves with frequencies of
200 Hz and 800 Hz. Only the Sum and Difference frequencies of 1000 Hz and 600 Hz
will result.
200
FREQUENCY (Hz)
800
FREQUENCY (Hz)
200
600
800 1000
FREQUENCY (Hz)
Chapter 5: Effects Section
EFFECTS SECTION
55
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