Dear List !
Can anyone help me with the understanding of [biquad~] filter ? No tutorials , no explanations found. The help file has very little info.
What do coefficients mean ?
Thanks.
hey there - not sure if this will help . it's from CCRMA's site referring to a C based version of a biquad filter, but i imagine that functionally it shouldn't be too far off:
https://ccrma.stanford.edu/~jorgeh/projects/ass/ASStk/doc/com/australsounds/...
maybe this will help a bit?
best, scott
On Sun, Sep 28, 2014 at 6:48 PM, Фывапр Олджэвич tofuckof@inbox.ru wrote:
Dear List !
Can anyone help me with the understanding of [biquad~] filter ? No tutorials , no explanations found. The help file has very little info.
What do coefficients mean ?
Thanks.
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
On 09/29/2014 03:48 AM, Фывапр Олджэвич wrote:
Dear List !
Can anyone help me with the understanding of [biquad~] filter ? No tutorials , no explanations found. The help file has very little info.
What do coefficients mean ?
[biquad~] is a low-level filter. i think it is discussed in most digital signal processing courses. these signal processing courses will usually discuss the working of a biquad in great detail which i think cannot be possibly covered in an email or a help-patch.
you might start by searching the web or checking [wikipedia].
gfmdsar IOhannes
[wikipedia] https://en.wikipedia.org/wiki/Digital_biquad_filter
I'm working on a tutorial about all this filter theory in depth right now that makes it accessible to musicians, but in portuguese only.
but long story short, if you have no idea, maybe you shouldn't bother with it :)
what you should know is that you can have lots of filter types with a biquad system, you only need to generate the right coefficients. There are some externals that do that for you, some are in Pd-Extended, check the attaches file. In max/msp, the filtergraph object will do that kind of thing too.
cheers
2014-09-29 2:13 GMT-03:00 IOhannes m zmölnig zmoelnig@iem.at:
On 09/29/2014 03:48 AM, Фывапр Олджэвич wrote:
Dear List !
Can anyone help me with the understanding of [biquad~] filter ? No
tutorials , no explanations found. The help file has very little info.
What do coefficients mean ?
[biquad~] is a low-level filter. i think it is discussed in most digital signal processing courses. these signal processing courses will usually discuss the working of a biquad in great detail which i think cannot be possibly covered in an email or a help-patch.
you might start by searching the web or checking [wikipedia].
gfmdsar IOhannes
[wikipedia] https://en.wikipedia.org/wiki/Digital_biquad_filter
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Ey Alexandre, That is a super useful helpfile even in portogues. Beautiful!
Thanks for sharing.
On Thu, Oct 9, 2014 at 1:09 AM, Alexandre Torres Porres porres@gmail.com wrote:
I'm working on a tutorial about all this filter theory in depth right now that makes it accessible to musicians, but in portuguese only.
but long story short, if you have no idea, maybe you shouldn't bother with it :)
what you should know is that you can have lots of filter types with a biquad system, you only need to generate the right coefficients. There are some externals that do that for you, some are in Pd-Extended, check the attaches file. In max/msp, the filtergraph object will do that kind of thing too.
cheers
2014-09-29 2:13 GMT-03:00 IOhannes m zmölnig zmoelnig@iem.at:
On 09/29/2014 03:48 AM, Фывапр Олджэвич wrote:
Dear List !
Can anyone help me with the understanding of [biquad~] filter ? No
tutorials , no explanations found. The help file has very little info.
What do coefficients mean ?
[biquad~] is a low-level filter. i think it is discussed in most digital signal processing courses. these signal processing courses will usually discuss the working of a biquad in great detail which i think cannot be possibly covered in an email or a help-patch.
you might start by searching the web or checking [wikipedia].
gfmdsar IOhannes
[wikipedia] https://en.wikipedia.org/wiki/Digital_biquad_filter
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
thanks, more of it coming up soon ;)
I have the whole thing in portuguese at http://puredata.info/docs/tutorials
check:
- Material Didático em Português (BR) por Alexandre Porres Página do
Material http://sites.google.com/site/porres/pd - Computação Musical Com Exemplos em Pd https://sites.google.com/site/porres/ComputacaoMusical-Porres.zip versão de out 2014
2014-10-14 15:53 GMT-03:00 Anton Woldhek woldhek@gmail.com:
Ey Alexandre, That is a super useful helpfile even in portogues. Beautiful!
Thanks for sharing.
On Thu, Oct 9, 2014 at 1:09 AM, Alexandre Torres Porres porres@gmail.com wrote:
I'm working on a tutorial about all this filter theory in depth right now that makes it accessible to musicians, but in portuguese only.
but long story short, if you have no idea, maybe you shouldn't bother with it :)
what you should know is that you can have lots of filter types with a biquad system, you only need to generate the right coefficients. There are some externals that do that for you, some are in Pd-Extended, check the attaches file. In max/msp, the filtergraph object will do that kind of thing too.
cheers
2014-09-29 2:13 GMT-03:00 IOhannes m zmölnig zmoelnig@iem.at:
On 09/29/2014 03:48 AM, Фывапр Олджэвич wrote:
Dear List !
Can anyone help me with the understanding of [biquad~] filter ? No
tutorials , no explanations found. The help file has very little info.
What do coefficients mean ?
[biquad~] is a low-level filter. i think it is discussed in most digital signal processing courses. these signal processing courses will usually discuss the working of a biquad in great detail which i think cannot be possibly covered in an email or a help-patch.
you might start by searching the web or checking [wikipedia].
gfmdsar IOhannes
[wikipedia] https://en.wikipedia.org/wiki/Digital_biquad_filter
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
another biquad example from my new tutorial examples in portuguese
cheers
2014-10-17 20:10 GMT-03:00 Alexandre Torres Porres porres@gmail.com:
thanks, more of it coming up soon ;)
I have the whole thing in portuguese at http://puredata.info/docs/tutorials
check:
- Material Didático em Português (BR) por Alexandre Porres Página do
Material http://sites.google.com/site/porres/pd - Computação Musical Com Exemplos em Pd https://sites.google.com/site/porres/ComputacaoMusical-Porres.zip versão de out 2014
2014-10-14 15:53 GMT-03:00 Anton Woldhek woldhek@gmail.com:
Ey Alexandre, That is a super useful helpfile even in portogues. Beautiful!
Thanks for sharing.
On Thu, Oct 9, 2014 at 1:09 AM, Alexandre Torres Porres <porres@gmail.com
wrote:
I'm working on a tutorial about all this filter theory in depth right now that makes it accessible to musicians, but in portuguese only.
but long story short, if you have no idea, maybe you shouldn't bother with it :)
what you should know is that you can have lots of filter types with a biquad system, you only need to generate the right coefficients. There are some externals that do that for you, some are in Pd-Extended, check the attaches file. In max/msp, the filtergraph object will do that kind of thing too.
cheers
2014-09-29 2:13 GMT-03:00 IOhannes m zmölnig zmoelnig@iem.at:
On 09/29/2014 03:48 AM, Фывапр Олджэвич wrote:
Dear List !
Can anyone help me with the understanding of [biquad~] filter ? No
tutorials , no explanations found. The help file has very little info.
What do coefficients mean ?
[biquad~] is a low-level filter. i think it is discussed in most digital signal processing courses. these signal processing courses will usually discuss the working of a biquad in great detail which i think cannot be possibly covered in an email or a help-patch.
you might start by searching the web or checking [wikipedia].
gfmdsar IOhannes
[wikipedia] https://en.wikipedia.org/wiki/Digital_biquad_filter
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
-
Alexandre Torres Porres -
Anton Woldhek -
IOhannes m zmölnig -
Scott R. Looney -
Фывапр Олджэвич