Hi!

Is it possible to make a polyphonic synth that receive chords as an array/list of values? Something like this MIDI patch:

I've tried it using [clone] but could not manage to send the lists to the clone object. Here is the hard coded version that I am using:

Any externals for dealing with that?

And here the patch. polyphony-chords-as-arrays.pd

Thanks a lot!

i would say "no" - there is no known generator or filter which is polyphonic by nature.

even if you code your own external at one point you always have to iterate the list into single values.

for example you could use a vexpr object instead of 4 mtofs, but there is no method how to make a polyphonic phase accumulator.

if you would try to make one, you would soon find out that it does not make too much sense to process accumulators in vectors when you need to have single outlets anyway, since audio connections have a fixed rate and bitdepht and can not be used to carry more than one signal.

of course inside pd you can yourself freely *where *you do that, (as opposed to MIDI, where every communication is serial.)

Your [clone] idea would be the way to go!
@Obineg said in Chords (polyphony) as arrays/lists:

if you code your own external at one point you always have to iterate the list into single values.

And have a look into the help-file of [clone]: Adress clone instances with the first number of a list or with next in a serial manner.

Instead you could send the whole list to all and in each instance cut-out the snipped of interest by getting the instance-# with [f $1] and cut-out with two [list split]s.

Maybe upload your non-working clone-version and we can fix it.

In your hard-coded patch only [mtof] and [phasor~] or only [phasor~] are required to duplicate, - sum all the [phasors~] into one [lop~] ect.

Maybe use [poly], if you like it.

Also, there are many examples of polyphonic synths floating around, in the patch-subforum for example.

Thanks a lot!

This is what I managed to do with [clone], it seems to be a strange solution, a toggle feedback for doing vertical chords (all the notes at the same onset). Any other proper solution?

Here is patch.

synth.cl.pd chords-clone.pd

BTW any other solutions/ideas for doing arppegios are welcome...

[poly] would work fine here - it's a recreation of midi polyphonic voicing so it comes with a lot of "well this does that huh"

.. so one important thing to understand is midi is serial and the short version is .. just send your note on messages in a row instead of all together -- thats the difference between parallel and serial,

with midi proper everything like a note on or off or tempo tick is sent about 0.32 (tempo tick) to 0.98 mseconds after each other.. pure data does not respect this slowdown btw

.. set it up for the max polyphony of a chord maybe? whatever your clone is at. [poly 5 1] then feed that into clone. the 1 means that "voice stealing" is on, so a voice will get sent velocity 0 .. and fade out I guess .. its weird .. instead of refusing to trigger new notes.

it takes some (a lot) of getting used to.. in the help /extras folder there's an example of a polyphonic synth thats as good a place as any to start out with tho it doesnt respond in real time, just sets the inputs and fires off, any changes to the UI would fire after

@inum https://github.com/MikeMorenoDSP/pd-mkmr/tree/master/sequencers check out the vanilla friendly mkmr library, uhh the github is a lot newer than whats in the find externals .. download the whole zip here https://github.com/MikeMorenoDSP/pd-mkmr just put whatever you want to use (and the help if you like) in the same folder and [callitbyitsname].pd

if you really want to make it easy use [else]. its got everything you need already whipped up with help documentation as well as a whole tutorial on live electronic music.

its in find externals (works best with the newest vanilla) or baked in to the vanilla compatible max lookalike plugdata (plugdata works best if you get the nightly)