Filtergraph dB per octave

Apr 2, 2006 at 4:09pm

Filtergraph dB per octave

What are the filtergraphs set to by default, 24dB per octave, 12dB per oct?

#25192
Apr 3, 2006 at 10:22am

Will Pickersgill wrote:
> What are the filtergraphs set to by default, 24dB per octave, 12dB per oct?

Its designed (unless you use cascade mode) to give the parameters of one
biquad~, which would limit you to… (look at the filtergraph~ help
file, set the frequency to 500 Hz, the next vertical line is at 1000 Hz
and there is a dB reading…)

Or just test it (copied out of the help file and modified with a cycle~):

Stefan

#P window setfont “Sans Serif” 9.;
#P number 205 291 49 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P flonum 110 461 42 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P window linecount 1;
#P newex 110 437 50 196617 atodb;
#P newex 110 412 86 196617 peakamp~ 100;
#P newex 204 373 39 196617 *~ 0.1;
#P newex 204 318 61 196617 cycle~ 500;
#P newex 204 351 79 196617 biquad~;
#P user ezdac~ 204 402 248 435 0;
#P user filtergraph~ 291 181 255 124 3 9 0. 22050. 0.0625 16. 1 1 1 0 0 1 1;
#X frgb 193 193 255;
#X brgb 233 233 255;
#X rgb2 0 0 0;
#X rgb3 130 130 130;
#X rgb4 0 0 0;
#X rgb5 118 121 166;
#X rgb6 210 74 54;
#X rgb7 255 22 22;
#X linmarkers 5512.5 11025. 16537.5;
#X logmarkers 10. 100. 1000. 10000.;
#X nfilters 1;
#X setfilter 0 1 0 0 0 500. 1. 1. 0.0001 22050. 0.0001 16. 0.5 25.;
#X done;
#P connect 4 0 1 1;
#P connect 4 0 1 0;
#P connect 8 0 3 0;
#P connect 6 0 7 0;
#P connect 5 0 6 0;
#P connect 2 0 5 0;
#P connect 2 0 4 0;
#P connect 3 0 2 0;
#P connect 0 0 2 1;
#P window clipboard copycount 9;

[][] [][][] [][] [][][]
[][][][][][][][][][][][][][][]

Stefan Tiedje
Klanggestalter
Electronic Composition
&
Improvisation

/~~~~~
\ /|() ()|
))))) )| | |( \
/// _/)/ )))))
___/ ///

————————-x—-
–_____———–|———–
–(_|_ —-|—–|—–()—-
– _|_)—-|—–()———–
———-()————x—–

14, Av. Pr. Franklin Roosevelt,
94320 Thiais, France
Phone at CCMIX +33-1-57 42 91 09

#73872
Apr 3, 2006 at 1:06pm

Thanks for the help Stefan.

#73873

You must be logged in to reply to this topic.