bdhm

play-a-biquad-filter-with-a-midi-keyboard-polyphonic

thanks for your reply and sorry for my unclear description.

"poly~" is a nice solution for audio-muting.

but my problem is also the MIDI-note handling.

how can I get a list from "notein" for polyphonic notes?

if I use "stripnote" and "thresh" I get not always a list -- even I change the threshold.

hmm .. also "midiin" together with "midiparse" are not always sending a list of polyphonic notes.

> Note-On = particular filter-frequency-open. 

> Note-off = particular filter-frequency-muted. 

> is "cascade" the best way ? if yes -- how ?

I did this with a cascade~. All filters set to peak/notch. A note on 

would set a positive gain dependent on the velocity, note off would set 

the gain to 0dB. The note handling would be easy with poly (without the 

To use poly~ and a single biquad~ is also possible of course, but would 

pose the problem of being always in parallel, and a switched on note 

would also change the level of the other frequency parts which you would 

bdhm schrieb:
> MIDI-pitch = filter-frequency. 
> Note-On = particular filter-frequency-open. 
> Note-off =  particular filter-frequency-muted. 
> bandpass/bandstop by selecting.
>
> is "cascade" the best way ? if yes -- how ? 

I did this with a cascade~. All filters set to peak/notch. A note on 
would set a positive gain dependent on the velocity, note off would set 
the gain to 0dB. The note handling would be easy with poly (without the 
tilde~)

To use poly~ and a single biquad~ is also possible of course, but would 
pose the problem of being always in parallel, and a switched on note 
would also change the level of the other frequency parts which you would 
prefer to pass unaltered (I guess...)

-- 
Stefan Tiedje------------x-------
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> hmm .. also "midiin" together with "midiparse" are not always sending

What is a list of polyphonic notes? Polyphony in the Midi world (as well 

as in the real world) is notes after another, not exactly at the same 

time. Each note on is seperate, if there is no note off, its still on...

You can create a list of pitches to be interpreted as a chord, but 

analysing notes from midi in doesn't provide chords as lists, you have 

to do that yourself if you need it (but you might not really need it for 

bdhm schrieb:
> hmm .. also "midiin" together with "midiparse" are not always sending
> a list of polyphonic notes.

What is a list of polyphonic notes? Polyphony in the Midi world (as well 
as in the real world) is notes after another, not exactly at the same 
time. Each note on is seperate, if there is no note off, its still on...

You can create a list of pitches to be interpreted as a chord, but 
analysing notes from midi in doesn't provide chords as lists, you have 
to do that yourself if you need it (but you might not really need it for 
your purpose...)

I decided to do the MIDI-note work with "poly" and to use 

this works -- but the note-off is not always working.

I decided to do the MIDI-note work with "poly" and to use 
10x "biquad~" filter. 

this works -- but the note-off is not always working.
hmm any tip ?

please don't name a patch after a standard object, it could screw 

peoples setup. Just "copy compressed" and paste into the mail, way better...

please don't name a patch after a standard object, it could screw 
peoples setup. Just "copy compressed" and paste into the mail, way better...

this patch does what you're after i think

@ Stefan Tiedje:
thanks & greetings from Berlin.

play a biquad~ filter with a MIDI keyboard polyphonic.