MultiplexorFadeControl

Discussion

THIS MODULE IS DEPRECATED AND NOT RECOMMENDED FOR NEW DESIGNS. PLEASE USE THE MultiplexorV2 MODULE INSTEAD.

This is a subsystem which implements a controllable multiplexor with crossfading. At construction time the argument NUMINPIN specifies the number of audio input pins that should be switched between. The module then has NUMINPIN+1 input pins. The first input pin "Index" is an integer signal specifying which audio signal should be selected. Index is zero based and in the range [0 NUMINPIN-1]. At the start of each block process, the first sample of Index is loaded and it determines which of the other audio inputs to use. Although Index can have any number of channels and any blockSize, only the first sample value of each block is used; all others are ignored. If Index falls outside of this range they are clipped to the allowable range.

Pins 2 to NUMINPIN+1 are the audio inputs and can contain any number of channels. The module performs a smooth crossfading between channels with a configurable smoothing time.

Internally, the subsystem contains a ParamSet module which controls a multiplexor_fade_module.m.

Module Pack

Deprecated

ClassID

classID =

Type Definition

typedef struct _ModuleMultiplexorFadeControl
{
ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
} ModuleMultiplexorFadeControlClass;

Pins

Input Pins


Name	index
Description	control input
Data type	int
Channel range	Unrestricted
Block size range	Unrestricted
Sample rate range	Unrestricted
Complex support	Real


Name	in1
Description	Input signal
Data type	float
Channel range	Unrestricted
Block size range	Unrestricted
Sample rate range	Unrestricted
Complex support	Real


Name	in2
Description	Input signal
Data type	float
Channel range	Unrestricted
Block size range	Unrestricted
Sample rate range	Unrestricted
Complex support	Real

Output Pins


Name	out
Description	Output signal
Data Type	float

Matlab Usage

File Name: multiplexor_fade_control_subsystem.m 
 SYS=multiplexor_fade_control_subsystem(NAME, NUMINPIN) 
 Builds on the multiplexor_fade_module.m and adds a control pin for 
 the .index pin.  Arguments: 
    NAME - name of the module. 
    NUMINPIN - number of input pins.