ScaleOffsetInt32

Overview

Scales a signal by integer gain and then adds an integer offset

Discussion

The ScaleOffsetInt32 module scales the input signal by an integer scale factor, and adds a fixed (DC) offset. The module is useful for logic and control signals.

The output is computed on a sample by sample basis according to the formula: y[n]= gain * x[n] + offset

Module Pack

Standard

ClassID

classID = 205

Type Definition

typedef struct _ModuleScaleOffsetInt32
{
ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
INT32 gain;                                   // Linear integer scale factor.
INT32 offset;                                 // DC offset.
} ModuleScaleOffsetInt32Class;

Variables

Properties

Name	Type	Usage	isHidden	Default Value	Range	Units
gain	int	parameter	0	1	Unrestricted
offset	int	parameter	0	1	Unrestricted

Pins

Input Pins


Name	in
Description	Input signal
Data type	int
Channel range	Unrestricted
Block size range	Unrestricted
Sample rate range	Unrestricted
Complex support	Real

Output Pins


Name	out
Description	Output signal
Data Type	int

Matlab Usage

File Name: scale_offset_int_module.m 
 M=scale_offset_int_module(NAME) 
 Creates a integer scale and offset object for use with the Audio Weaver 
 environment. 

 Arguments: 
    NAME - name of the module.