Overview
Computes long term statistics per channel
Discussion
This module is a multichannel version of the RunningStatisics module. The module keeps track of the statistics of the input data. The state variable value holds the statistic result seen thus far since the module start processing. A separate statistic is computed for each input channel.
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By default, the sample rate of the output pin equals SRin / blocksize. There are some times when this computes the wrong sample rate and you can overwrite the output sample rate using the SAMPLERATE argument.
Type Definition
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typedef struct _ModuleRunningStatisticsN
{
ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure
INT32 statisticsType; // Type of statistics needed.
INT32 numBlocksProcessed; // Counter for the number of blocks processed.
INT32 reset; // Used to identify the first block which is processed.
FLOAT32* value; // Instantaneous output value.
FLOAT32* mean; // State variable for mean.
FLOAT32* avgEnergy; // State variable for average energy.
} ModuleRunningStatisticsNClass; |
Variables
Properties
Name | Type | Usage | isHidden | Default value | Range | Units |
statisticsType | int | parameter | 0 | 0 | 0:8 | |
numBlocksProcessed | int | state | 0 | 0 | Unrestricted | |
reset | int | state | 0 | 1 | Unrestricted | |
value | float* | state | 0 | [1 x 1] | Unrestricted | |
mean | float* | state | 0 | [1 x 1] | Unrestricted | |
avgEnergy | float* | state | 0 | [1 x 1] | Unrestricted |
Pins
Input Pins
Name: in
Description: Audio input
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Sample rate range: Unrestricted
Complex support: Real
Output Pins
Name: out
Description: Audio input
Data type: float
Scratch Pins
Channel count: 1
Block size: 32
Sample rate: 48000
MATLAB Usage
File Name: running_statisticsn_module.m
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