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
tip
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