Ring Modulator

Ring Modulator Can produce bell-like non-musical tones. Uses sine, triangle, sawtooth or pulse waveform modulation.
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Ring Modulator Ranking & Summary

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  • Rating:
  • License:
  • GPL
  • Publisher Name:
  • David R. Sky
  • Publisher web site:
  • Operating Systems:
  • Windows All
  • File Size:
  • 2 KB

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Ring Modulator Description

Can produce bell-like non-musical tones. Uses sine, triangle, sawtooth or pulse waveform modulation. A ring modulator that features selection of four different modulating waveforms (sine, triangle, sawtooth, and pulse with variable pulse width - bias). A basic ring modulator multiplies an audio-frequency sinewave signal with another signal. (and in audio, multiplying really means amplitude modulation: if the modulating signal is an LFO or low frequency oscillator sine wave, the result would just be a tremolo effect.) A ring modulator can produce bell-like tones when applied to a signal with multiple harmonics such as a musical instrument. In mathematical terms, a ring modulator applied to a signal results in a different signal, comprised of a combination of the sum and the difference between the two signal frequencies: if the ring modulator signal is a 440 Hz sine wave, and the modulated signal is a 660 Hz sine wave, the resulting signal is comprised of 1100 Hz (sum) and 220 Hz (difference). The resulting signal is rarely musical-sounding. Frequency of the modulator signal can be adjusted, along with the amount that it modulates your audio (in percent: 0=no effect, your original audio remains; 100=full modulated effect). Selectable waveform: 0=sine, 1=triangle, 2=sawtooth, 3=pulse with variable pulse width (bias). Sine has just one harmonic (itself), triangle has a few more harmonics, sawtooth and pulse have many more and stronger harmonics, which can make for harsh-sounding results. When the bias of the pulse wave is set to 0, the waveform is a perfect square wave (50% of the time it's positive, 50% of the time it's negative). With higher bias, the positive portion of the pulse is wider; with bias below 0, the positive pulse width narrows below 50%. (Bias ranges from -100% to +100%.) Requirements: Audacity


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