(8.D.2.3) ScaleOffsetInt32
- Catherine Spain
- Andrew Perrin
Owned by Catherine Spain
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
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 | Â |
offset | int | parameter | 0 | 1 | Unrestricted | Â |
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.Â