DCSourceV2

Overview

Outputs a constant DC value with optional input control pin to scale DC value.

Discussion

The DC source module has an internal variable holding one data value. The module continuously fills the output wire with the internal data value. This module also has optional input control pin to scale the internal data value. The output blockSize and sample rate can be specified. If not specified, the values are taken from the system input.

Module Pack

Standard

ClassID

classID = 114

Type Definition

typedef struct _ModuleDCSourceV2
{
ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
FLOAT32 value;                                // Data Value
} ModuleDCSourceV2Class;

Variables

Properties

Name	Type	Usage	isHidden	Default Value	Range	Units
value	float	parameter	0	1	-20:20

Pins

Input Pins


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

Output Pins


Name	out
Description	output data
Data Type	float

Matlab Usage

File Name: dc_source_v2_module.m 
 M=dc_source_v2_module(NAME, NUMCHANNELS, BLOCKSIZE, SAMPLERATE, CONTROLPIN) 
 Creates a source module that allows you to inject DC test data into 
 the audio processing layout. Also has optional input control pin to scale 
 the data value to be written on ooutput pin. 

 Arguments: 
    NAME - name of the module. 
    NUMCHANNELS - number of interleaved channels in each output pin. 
    BLOCKSIZE - number of samples per output channel. 
    SAMPLERATE - sample rate of the output signal, in Hz. 
    CONTROLPIN - boolean to add control input pin or not.