LogicAny

Overview

Check if the input block has any non-zero values

Discussion

This module checks if any samples in the input block are non-zero. If there are non-zero values, then the instance variable .result is set to 1. Otherwise, if all input samples are zero, then .result is set to 0.

By default, the module has no output pin and the result of the computation is only stored to the internal instance variable. If the optional second input argument, OUTPUTVALUE, is set to 1, then the module has an output pin with dimension 1 channel and 1 sample. The output pin is updated on a block-by-block basis and contains .result.

When the module is bypassed, the output is set to 1.

Type Definition

CODE

typedef struct _ModuleLogicAny
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    INT32 result;                                 // Equals 0 if all input values in the block are 0. Otherwise equals 1.
} ModuleLogicAnyClass;

Variables

Properties

Name	Type	Usage	isHidden	Default value	Range	Units
result	int	state	0	0	0:1

Pins

Input Pins

Name: in

Description: Integer inputs

Data type: {int, fract32}

Channel range: Unrestricted

Block size range: Unrestricted

Sample rate range: Unrestricted

Complex support: Real

Output Pins

Name: out

Description: Contains the instance variable .result

Data type: int

MATLAB Usage

File Name: logic_any_module.m

CODE

 M=logic_any_module(NAME, OUTPUTVALUE)
 Audio Weaver module that checks if any input samples within a block
 are non-zero.  The module is similar to the MATLAB any() function.
 The module sets the internal Boolean variable .result.  Arguments:
    NAME - name of the module.
    OUTPUTVALUE - specifies whether the module has an output pin.
                  By default, OUTPUTVALUE=0 and the result of the
                  computation is only stored to the instance variable
                  .result.  If OUTPUTVALUE=1, then the module has
                  an output pin with numChannels = 1 and blockSize = 1
                  containing .result.