MIDI

Multiple Oscillator Techniques

The Music Telegraph | Text 2021/12/20 [14:53]
MIDI

Multiple Oscillator Techniques

The Music Telegraph| 입력 : 2021/12/20 [14:53]

 

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Multiple Oscillator Techniques 

 

Multiple oscillator techniques generate complex and dynamically changing timbres by combining two or more oscillator signals in various ways:  

  • De-Tuning: creates a "chorus" or beating effect by mixing two oscillator signals whose frequencies are tuned apart by less than a semitone (half-step). The amount of de-tuning (usually measured in cents) affects the apparent speed of the beating effect. 
  • Octaves: creates a fuller, richer perceived tone by mixing two oscillator signals whose frequencies are tuned in octave ratios. Simulates a technique commonly used in organ voicings and orchestral arrangements. 
  • Intervals: creates musical harmonies (or dissonances) from a single MIDI note by mixing two oscillator signals whose frequencies are tuned some number of semitones apart. 
  • RM (Ring Modulation): creates a single, somewhat dissonant (inharmonious) tone by multiplying the signals from two oscillators together. The overall timbre is affected by the relative frequencies of the two oscillators, as well as their waveforms.
  • FM (Frequency Modulation): creates a single, very dissonant and aggressive tone by using one audio frequency oscillator to control the frequency of another oscillator (similar to controlling it using an LFO above 20hz). The overall timbre is affected by the relative frequencies of the two oscillators, and the degree or intensity of the dissonance is affected by the FM amount. 

 

 

 

 

 

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