Octave Analysis
Description
The signal processing block Octave Analysis octave averages individual 1/B octave bands of an input.
The octave analyser is designed based on IEC 61260-1:2014 and the
specifications in the attributes. The octave filters are class 1 which is the best filter class
If you want to use octave filters go here.
Input
The input is MxN.
Output
The output is KxN which is the average of each K 1/B octave band of the input signal MxN.
The size K is dependent on how many bands pr octave and the start and end frequency.
Attributes
| Attribute | Value |
|---|---|
| Name | OctaveAnalysis |
| Bands pr. octave | 3 |
| Start frequency | 20 Hz |
| Stop frequency | 20.000 Hz |
| Base | 10 |
| Reference frequency | 1000 Hz |
| Channels | 1 |
Name
Name specifies the name of the block.
Bands pr. octave
Bands pr. octave is the number of bands pr. octave. Maximum is 24 bands pr. octave.
Start frequency
Start frequency is the frequency which the lowest octave band must contain.
Stop frequency
Stop frequency is the frequency which the highest octave band must contain.
Base
Base is a design parameter which can either be 10 or 2. For default standard octave filters it is 10.
Reference frequency
Reference frequency is a design parameters. For default standard octave filters it is 1000 Hz