Difference between revisions of "ER-301/Accents/Aliasing Pulse"

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(Created page with "== Applications == * Audio rate synthesis with PWM (pulse width modulation) * LFO with sync capabilities == Description == This unit is a simple pulse wave oscillator with i...")
 
 
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* Audio rate synthesis with PWM (pulse width modulation)
 
* Audio rate synthesis with PWM (pulse width modulation)
 
* LFO with sync capabilities
 
* LFO with sync capabilities
 +
* Clocking
  
 
== Description ==
 
== Description ==
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=== width ===
 
=== width ===
Sets the width of the pulse from 0-100%.
+
{{GainBias|gain(0 to 1)
 +
bias (0 to 1)|linear}}
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Sets the width of the pulse from 0-100%.  Apply low frequency modulation to this control for PWM (pulse width modulation).
  
 
=== sync ===
 
=== sync ===

Latest revision as of 15:07, 14 November 2019

Applications

  • Audio rate synthesis with PWM (pulse width modulation)
  • LFO with sync capabilities
  • Clocking

Description

This unit is a simple pulse wave oscillator with inputs for both exponential and linear FM, a pulse width control, and an internal VCA on its output. The linear FM supports thru-zero operation.

Video

Parameters

V/oct

Control Type Has Sub-chain? Sub-chain Parameters Fader Scale
Pitch yes transpose (-3600¢ to 3600¢) logarithmic ratio

This parameter is used to transpose the base frequency up or down according to an incoming modulation value that is V/oct calibrated (typically one of the inputs from the ABCD matrix). In other words,

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle \text{f} = \text{f0} * 2 ^{\frac{x}{1200}} }

where Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle x} is the value of this parameter (which is in cents). For example, if the base frequency (f0) is equal to 55Hz and this V/oct parameter is set to 2400¢, then the resulting frequency will be 220Hz (i.e. 2400¢ = 2 octaves which is 4x).

f0

Control Type Has Sub-chain? Sub-chain Parameters Fader Scale
Gain/Bias yes gain (-10,000 to 10,000)

bias (10 octaves above and below 27.5Hz)

frequency in Hertz


This parameter sets the fundamental frequency that is subsequently transposed by the V/oct parameter. Modulating this parameter corresponds to (thru-zero) linear FM.

width

Control Type Has Sub-chain? Sub-chain Parameters Fader Scale
Gain/Bias yes gain(0 to 1)

bias (0 to 1)

linear

Sets the width of the pulse from 0-100%. Apply low frequency modulation to this control for PWM (pulse width modulation).

sync

Control Type Has Sub-chain? Sub-chain Parameters Behavior
Threshold yes threshold (-1 to 1) trigger


A trigger into this parameter will cause the oscillator to reset its phase accumulator to zero. This is equivalent to the hard-sync on many oscillators.

level

Control Type Has Sub-chain? Sub-chain Parameters Fader Scale
Gain/Bias yes gain (-10 to 10)

bias (-1 to 1)

linear gain


This parameter controls an internal bipolar linear VCA on the output of the unit. It behaves exactly the same as the level parameter of a Linear Bipolar VCA unit.