Time Weighted Average
Description
The signal processing block Average can either calculate the linear or exponential average of an input.
It is based on IEC 61672-1:2013 which specifies sound level meters
and defines the time-weighted sound level.
Input
The input is MxN and must be a time signal with the units s, ms or samples
Output
The output is KxN which is an average of the input signal MxN. The size of K is dependent on the type of averaging
and the time constant. The unit of the output is the same as the input.
Attributes
| Attribute | Value |
|---|---|
| Name | TimeWeightedAverage |
| Type | Linear |
| Time constant | 125.0 ms |
| Window | Rectangle |
| Overlap | 0.0 ms |
| Channels | 1 |
Name
Name specifies the name of the block.
Type
Type specifies the type of time averaging is performed. The type can either be Linear or Exponential.
Time constant
Time constant specifies the averaging time of the block in either s, ms or samples.
Window
Windows specifies the type of window used when time averaging.
Overlap
Overlap specifies the overlap in time, when using a linear averaging, in either s, ms or samples.
Channels
Channels specifies the number of input(s)/output(s) the block will have.