KVR Audio

CinningBao · Post by **CinningBao** » Fri Jul 06, 2007 9:01 pm

It occured to me that there are no Midi morphing techniques available on the plugin level. these perl developers came up with something

http://search.cpan.org/~crenz/MIDI-Morp ... I/Morph.pm

but it's difficult to tell if it's realtime (preferred) or not, and besides, it's written for perl. any perl to vst programmers out there?

Midi Pattern Morphing - discuss..?

Lagrange · Post by **Lagrange** » Sat Jul 07, 2007 5:02 am

Now that would be an interesting plugin! I'd think it would take some serious maths to get it to work properly. Maybe be better off as a built in feature in a HOST or synth? Anything MIDI snags my attention.. Keeping an eye on this!

L

funkadil · Post by **funkadil** » Sat Jul 07, 2007 6:16 am

Ive thought about this a lot and tried to get it to work in reaktor. basically it would be a midi slow-down/ catch up. Like a small cumulative delay on events in a midi signal stream with an intelligent morph back into regular time. It could make for some really interesting human-like jazz y sort of tempo drifts especially with multiple tracks and envelope modulation on the triggering parameter. Its been a dream of mine for a while and I even made a pleading topic about it but I havn't really figured out how to do it yet. I just want that funky sequenced synth solo to get its stuff going and carried away and then catch up with the song again. It would be cool believe.

EDIT: ever tried that drum machine plugin that morphs?

disturb · Post by **disturb** » Sat Jul 07, 2007 9:19 am

the java midi app lemu2 does this, its really quite cool.
http://www.lemu.org/download.html

CinningBao · Post by **CinningBao** » Sat Jul 07, 2007 12:56 pm

wow disturb - that's interesting. might be worth a look, and an extended play.. thanks

funkadil - I also looked at similar things in reaktor/plogue a while ago but didn't get very far - I'm beginning to realise that this kind of tool can't be written in these high-level modular envs. well, not of the complexity I imagine. shame.

Lagrange · Post by **Lagrange** » Sun Jul 08, 2007 3:32 am

That lemu2 is really quite amazing. Its really too bad there is nothing like this as a VST for modular etc.

L

Lagrange · Post by **Lagrange** » Sun Jul 08, 2007 7:39 pm

I have a custom coded VST effect plugin called Polylimiter

. *much thanks goes out to plastique

Basically it limits the amount of polyphonic voices played at any given time (via the automatible 'poly' parameter).

I'm poking around with the possibility of making it able to fade between 2 MIDI sources. Heres the basic setup so far.

MIDI source 1 -> Polylimiter 1 -> Polylimter 3
MIDI source 2 -> Polylimiter 2 -> Polylimter 3

A cross fader controls the amount of voices on PL instances 1 and 2 and then one more normal fader ctrl for the 3rd PL instance(the tricky one). All in all it does give a rudimentary kind of morphing between patterns(tempo changes can done separately).

The only downside about using PL for this is that it does not allow for 0 voices so there will always be a bit of one or the other MIDI source playing (I kinda wish Kill would do this). I'm trying to incorporate a MIDI mute that would represent zero. Also for instance 3, I'd rather it functioned as a go between for 1 and 2 instead of just a plain limiter. Working on it....

L

RunBeerRun · Post by **RunBeerRun** » Sun Jul 08, 2007 7:47 pm

Can your polylimiter force my MIDI input to go monophonic?

That's what I could use, some synths don't have a monophonic or voice limiting option.

Can you share this plug with me? Thanks.

Lagrange · Post by **Lagrange** » Sun Jul 08, 2007 8:06 pm

Its actually not my plugin but dev'd by plastique!

If I'm reading you correctly, I think that if you go down to 1 poly it should give a pseudo monophonic voice effect..

Anyhow give it a try and let me know what happens. PMing you.

L

RunBeerRun · Post by **RunBeerRun** » Sun Jul 08, 2007 8:45 pm

I got it, I'll tell you how it works with some freeware I have, which would work smoothly in mono, but doesn't actually have a settting for that.

RunBeerRun · Post by **RunBeerRun** » Sun Jul 08, 2007 10:58 pm

It didn't help, on cpu heavy plugs it wasn't any better, it was a little worse. The polylimiter takes a little cpu room of its own it seemed.

Thanks for letting me try it, it was worth a shot.

Lagrange · Post by **Lagrange** » Mon Jul 09, 2007 12:17 am

PL2 is not going make the CPU run more efficiently. Even if you did have many polyvoices limited by it, the synth/sampler is going to still be processing the original amount of voices in the background anyway. Thats not what it was designed for.

It only limits polys AFTER the instruments own process.

Also as per your PM it sounds like you need the MIDI panic vst to stop the flow of MIDI on notes instead of PL2.

L

Lagrange · Post by **Lagrange** » Mon Jul 09, 2007 3:36 am

Getting back to MIDI morphing I've received confirmation from a reliable DEV thats going to look into this (MM in Perl etc) in August so hopefully something good comes out of it!

L

CinningBao · Post by **CinningBao** » Mon Jul 09, 2007 10:16 am

Good work LaGrange - My coding buddies are far too busy with other things to bother with lowly audio/midi stuff, so let's hope this DEV can do something

In the meantime, I've not yet convinced myself that it can't be done in Plogue.. and that may take some time!

Lagrange · Post by **Lagrange** » Mon Jul 09, 2007 9:30 pm

Just so you know I'm not so concerned with the tempo aspect of morphing. I'm more interested in getting the MIDI patterns to fade from one to another. Is the tempo aspect detrimental to you?

L

Effect Request: Midi Morph?