Version: current

Octave Filters

Description

The filter block Octave Filters filters a signal through an octave filter bank. 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 an octave analyser go here.

Mx1MxN

Input

The input is a single channel Mx1.

Output

The output is MxN which is the input data filtered by N octave filters based on the specifications.

Attributes

AttributeValue
NameOctaveFilters
Bands pr. octaveโ˜ 3
Start frequencyโ˜ 20 Hz
Stop frequencyโ˜ 20.000 Hz
Base10
Reference frequencyโ˜ 1000 Hz
Channels1

Values with โ˜ can receive external input.

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