ring_modulation.csd

Ring Modulation
Jacob Joaquin
September 29, 2010
jacobjoaquin@gmail.com
csoundblog.com

<CsoundSynthesizer>
<CsInstruments>
sr = 44100
kr = 4410
ksmps = 10
nchnls = 1
0dbfs = 1.0

instr 1
    iamp = p4    ; Amplitude
    ifreq1 = p5  ; Frequency of oscillator 1
    ifreq2 = p6  ; Frequency of oscillator 2

    a1 oscils iamp, ifreq1, 0  ; Oscillator 1
    a2 oscils iamp, ifreq2, 0  ; Oscillator 2
    aring = a1 * a2            ; Ring modulation
    out aring                  ; Output audio
endin

</CsInstruments>
<CsScore>

i 1 0 1 0.707 440 1
i 1 + . .     .   2
i 1 + . .     .   4
i 1 + . .     .   8
i 1 + . .     .   16
i 1 + . .     .   32
i 1 + . .     .   64
i 1 + . .     .   128
i 1 + . .     .   256
i 1 + . .     .   512
i 1 + . .     .   1024
i 1 + . .     .   2048

</CsScore>
</CsoundSynthesizer>