Difference between revisions of "ER-301/Grid Quantizer"

Revision as of 05:04, 25 May 2018

Applications

• adding grit to sounds (i.e. similar to bit crushing)
• restricting modulation signals to a finite set of levels (i.e. stair-case function)

This is not a pitch quantizer because this unit has no knowledge of 1V/oct or scales. A separate (and much more complicated) upcoming unit will take care of these tasks.

Description

This simple unit quantizes the incoming signal to a given number of levels with separate controls for pre-gain and post-gain.

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 \mbox{QUANTIZE}(x;\mbox{pre},\mbox{levels},\mbox{post}) = \frac{\mbox{FLOOR}(\mbox{levels} * \mbox{pre} * x) * \mbox{post}}{\mbox{levels}} }

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  The transfer function for when levels = 8.

Parameters

pre

This gain multiplies the signal before quantization.

levels

This parameter sets the total number of output levels that exist between -0.5 and 0.5 (or equivalently, between 0 and 1). In other words, assuming the pre- and post-gains are 1, the distance between one output step and the next output step is: 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 \frac{1}{\mbox{levels}}} .

post

This gain multiplies the signal after quantization.