SumDiff

Overview

Computes the sum and difference of two signals

Discussion

This module has 2 input pins and 2 output pins. Input pins must have same block size, number of channels, and sample rate. Output pins have same block size, number of channels, and sample rate as input pins.

Output1=(Input1+Input2)/2, Output2=(Input1-Input2)/2.

Note that if we cascade 2 of these modules then outputs of 2nd module are equal to inputs of first module scaled by 0.5.

Module Pack

Standard

ClassID

classID = 68

Type Definition

typedef struct _ModuleSumDiff
{
ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
} ModuleSumDiffClass;

Pins

Input Pins


Name	in1
Description	Audio input
Data type	float
Channel range	Unrestricted
Block size range	Unrestricted
Sample rate range	Unrestricted
Complex support	Real and Complex


Name	in2
Description	Audio input
Data type	float
Channel range	Unrestricted
Block size range	Unrestricted
Sample rate range	Unrestricted
Complex support	Real and Complex

Output Pins


Name	out1
Description	Audio output
Data Type	float


Name	out2
Description	Audio output
Data Type	float

Matlab Usage

File Name: sum_diff_module.m 
 M=sum_diff_module(NAME) 
 Creates a sum/difference module for use with the Audio Weaver 
 environment. 

 Arguments: 
    NAME - name of the module.