fdesign.octave - Extend to frequencies below 20 Hz

2 visualizzazioni (ultimi 30 giorni)
apusnik
apusnik il 20 Mar 2020
Risposto: Samatha Aleti il 23 Mar 2020
I'd like to design a third-ocatve filter with the function fdesign.octave for center frequency below 20 Hz (10 Hz), But I got the following warning. Any possibility to extend the valid frequency range?
d1 = fdesign.octave(3,'Class 1','N,F0',6,10,4096);
Warning: Valid values for the 'F0' property are :
25.12

Risposte (1)

Samatha Aleti
Samatha Aleti il 23 Mar 2020
Center frequencies must be greater than 20 Hz and less than 20,000 Hz. If the center frequency specified is not valid, it will be rounded to nearest valid value. In your case the nearest valid value is 25.12.
You can know the valid center frequency values of a specific filter using “validfrequencies” as follows:
d1 = fdesign.octave(3,'Class 1','N,F0',6,10,4096);
validcenterfreq = validfrequencies(d1);

Categorie

Scopri di più su Measurements and Spatial Audio in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by