Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: Scroll Documents: Update page title prefix

Overview

Two piece interpolation module

Discussion

This module performs interpolation using two line segments with a knee between the two pieces. The parameter threshold specifies the point of intersection of the two lines. The kneeDepth specifies the curvature of the smooth region connecting the two line segments. If kneeDepth is zero, then there is no knee, simply two lines connected to each other at the threshold point. If kneeDepth is nonzero, then the curved region will begin at threshold-kneeDepth and ends at threshold+kneeDepth. The slopeL and slopeH are the slopes of the left hand side line and right hand side line respectively.

...

When ratios are used and a ratio equals 0 then the corresponding slope is set to 1e6 (prevent divide by zero).

Type Definition

Code Block
typedef struct _ModuleTwoPieceInterpV2
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    FLOAT32 threshold;                            // The point at which two line segments meet
    INT32 useRatios;                              // Specifies whether the line segments are specified using their slopes (=0) or ratios (=1)
    FLOAT32 slopeL;                               // The slope of the line segment on the left hand side
    FLOAT32 slopeH;                               // The slope of the line segment on the right hand side
    FLOAT32 ratioL;                               // 1/slope of the line segment on the left hand side
    FLOAT32 ratioH;                               // 1/slope of the line segment on the right hand side
    FLOAT32 kneeDepth;                            // Specifies the curvature of the smooth region connecting the two line segments
    FLOAT32* polyCoeffs;                          // Interpolation coefficients returned by the grid control.
} ModuleTwoPieceInterpV2Class;

Variables

Properties

Name

Type

Usage

isHidden

Default value

Range

Units

threshold

float

parameter

0

-20

-100:0.1:100

useRatios

int

parameter

0

0

0:1

slopeL

float

parameter

0

1

-100:100

slopeH

float

parameter

0

1

-100:100

ratioL

float

parameter

0

1

-100:100

ratioH

float

parameter

0

1

-100:100

kneeDepth

float

parameter

0

2

0:100

polyCoeffs

float*

derived

1

[4 x 1]

Unrestricted

Pins

Input Pins

Name: in

Description: audio input

...

Sample rate range: Unrestricted

Complex support: Real

Output Pins

Name: out

Description: audio output

Data type: float

MATLAB Usage

File Name: two_piece_interp_v2_module.m

...