Ringmodulator with Audio Input
The Ringmodulator is a simple, characteristic audio effect which has been used in many contextes. There is a large variety of guitar effect pedals based on ringmodulation. Another popular application is alienating voices, as done in vintage SciFi movies. The following example ringmod-input.dsp from the Faust repository modulates an audio input signal with a sine wave of adjustable frequency.
// ringmod-input.dsp // // Ringmodulator for audio input // // - fader for controlling modulator frequency // - fader for controlling mix of ringmod // // Henrik von Coler // 2020-05-12 import("stdfaust.lib"); f_m = hslider("Modulator Frequency",100,0.01,1000,0.1); mix = hslider("Modulation Mix",0.5,0,1,0.01); am(x, fm) = (1-mix) * x + mix * x * os.osc(fm); process(x) = am(x,f_m) <: _,_;
AM - Ringmod Explorer
When used with both sinusoidal carrier and modulator, Ringmodulator an AM become precice means for generating timbres in electronic music contexts. The example am-ringmod.dsp makes the tonal difference between AM and Ringmodulation audible.
// am-ringmod.dsp // // Example for amplitude modulation // and ringmodulation. // // - steady sound // - adjustable frequencies // - fader for morphing between am/ringmod // // Henrik von Coler // 2020-05-11 import("stdfaust.lib"); f_x = hslider("Signal Frequency",100,0.01,1000,0.1); f_m = hslider("Modulator Frequency",100,0.01,1000,0.1); m_off = hslider("Modulator Offset",0,0,0.5,0.01); am(fx, fm) = os.osc(fx) * ((1-m_off) * os.osc(fm) + m_off); process = am(f_x,f_m) <: _,_;