Messages

1351

preenfm2 and preenfm3 / Re: Which parameters on DX7?

« on: January 09, 2016, 10:11:48 AM »

The easiest way to understand how it works is to start with a very simple exemple :
Use sin waveforms only.
Set a simple algo : ALGO1 and start with all IM* to 0.
Set a fast attack and high sustain for OP1. OP1 enveloppe in ALGO1 control the volume of the sound.
You should get a simple sin sound.

Now turn up IM1 to something like 4.0. OP2 now modulates OP1. The sounds gets richer.
And play with OP2 enveloppe. In ALGO1, OP2 enveloppe controls the modulation of OP1 by OP2 over time.
Try to plug an oscilloscope VST and keep an eye on it (http://www.voxengo.com/product/span/) while doing all that.

I am still confused as to why it takes so many encoder turns to cover the full domain of IM from 0-16 starting from 0, is IM not meant to be in high ranges?

No.
IM gives very intersting results with a very small value. Depends on the type of sound you want.

But if you want to accelerate the steps hold x10 button (INST) while turning.
And if you turn fast, there's also an acceleration in the Encoder behaviour.

Xavier

1352

preenfm2 and preenfm3 / Re: Which parameters on DX7?

« on: January 07, 2016, 04:15:59 PM »

So the IM on the Preen roughly corresponds to something like modulator amp on the DX?

Yes.
Except for the lower level of operator (the ones that produces the sound / carrier operators). Then you have volume and Pan on the preenFM.

More importantly, how do IM and the operator envelopes for modulators interact on the Preen?

Enveloppes are inside an operator.
IM is a multiplier between operators depending on the frequency of the operators. The spectral impact is so the same for all note you play.

Xavier

1353

preenfm2 and preenfm3 / Re: Which parameters on DX7?

« on: January 07, 2016, 10:08:37 AM »

Hi,

You cannot map the DX7 parameters to preenfm2 with precision.
Freq on the DX7 from 0 to 31 are internal integer values of the DX7.

With the preenfm2 i tried to make the values more relevant.
The freq is the ratio of the op freq / the note you play. Ex : freq is 2.0 : you play a A 440hz, the freq of the op will be 880 Hz.

The IM is only relevent to FM, the DX7 is phase modulation not real FM.
And the IM is what you'll read about if you read generic FM manual.

The DX7 preset import was hard to do and is limited because of that.

Reading DX7 manual is very interesting but it's not easy to map that to the preenfM2.

Xavier

1354

preenfm2 and preenfm3 / Re: LFO rate quantization

« on: January 04, 2016, 09:17:05 AM »

No, you cannot do that accurately.
You can use note1 or note2 to modulate the LFO rate but it will be hard to get focused results.

Xavier

1355

preenfm2 and preenfm3 / Re: cerb40 flashing

« on: December 27, 2015, 07:13:54 PM »

Hi,

You execute the install_bootloader.cmp from an other folder, so it does not find the firmware file.
Instead of :
> /Users/pau/Desktop/bootloader/install_bootloader.cmd ; exit;
Try
> cd /Users/pau/Desktop/bootloader/
> install_bootloader.cmd

Soldering the CERB40 mini USB cable is explained at the bottom of this page :
http://ixox.fr/preenfm2/build-it/the-pcb/

Best,

Xavier

1356

preenfm2 and preenfm3 / Re: make preenfm more playable

« on: December 17, 2015, 10:06:43 AM »

when you turn it fast you get a value beyond what you intended.

This, i can understand. But that's the same for all values.

Why performance should be different ?
In adition with performance, i cannot think of a situation when you think "i need to reach 0.51".

1357

preenfm2 and preenfm3 / Re: make preenfm more playable

« on: December 16, 2015, 09:59:44 PM »

hi Xavier.  whet do you think about disabling the acceleration while in performance mode?

Hi,
Can you give an example when it would be usefull ?
I don't get it.

1358

preenfm2 and preenfm3 / Re: Layout for Frontpanel

« on: December 16, 2015, 09:20:19 AM »

I think there's no Eurorack preenfm2 today, so you won't find such a file.

The cases file are available in the download section :
http://ixox.fr/preenfm2/download/

Best,

Xavier

1359

preenfm2 and preenfm3 / Re: SAVE edited preset

« on: December 16, 2015, 09:01:31 AM »

Hi, did you really miss the Save menu ?
http://ixox.fr/preenfm2/manual/menu-mode/

Or maybe i don't understand what you're trying to do....

Best,

Xavier

1360

preenfm2 and preenfm3 / Re: emailed about building a PreenFM2 from pcb and sourced parts - had question

« on: December 15, 2015, 06:29:33 PM »

Sorry for this standard reply that the web shop send automatically.

I stopped replying to individual stock request simply because i don't have anything to say except what is written in the shop header, that i just updated
http://ixox.fr/shop/

CERB40 or CERB40 II can be used instead of the preenF405 but they are not easy to find.

Best,

Xavier

1361

preenfm2 and preenfm3 / Re: Anyone able to compare Preen with TX802?

« on: December 03, 2015, 11:49:49 AM »

Hi,

Here are some clarification 
The preenFM2's do not try to mimic the yamaha sound.
They do not sound identical.
They are totally different internally. Totally...

The preenfm2 loads DX7 patches, but some parameters are not used, others are mapped with more or less success.
I don't even have a DX7 and I used Hexter to compare the results when i coded the DX7 import function.

If you want the yamaha sound buy a yamaha.
If you want to play with complex modulations, have something easier to edit, do microtonality, play with a built-in randomizer, have something smaller, USB over midi...etc... (see full feature list ... Then build a preenfm2.

Xavier

1362

preenfm2 and preenfm3 / Re: Lately or Solid Bass

« on: December 03, 2015, 11:40:09 AM »

Hi,

Have you tried Funkyfli bank ?
http://ixox.fr/forum/index.php?topic=63461.0
It's included in the preenfm2 zip file so you already may have it on your usb stick.

It contains many very good bass.
That could be a good start to build your own.

Xavier

1363

preenfm2 and preenfm3 / Re: PC/Mac Editor version 2.00

« on: November 23, 2015, 10:59:06 PM »

Hi,

Sorry i forgot your post.
It should appear in the list of VST instruments.
I cannot garantee it works with Cubase, i've never tried.

The standalone version works as a VST inside a minimal host.
You have to select an audio device to have the VST audio loop called by the host. So that it can deal with midi events.
That's a technical only constraint.
The audio will in any way go out through the Audio Jack.

Xavier

1364

preenfm2 and preenfm3 / Re: cerb40 flashing

« on: November 23, 2015, 12:07:58 PM »

The 2 resistors are only usefull when you use a LCD.
But does not hurt at all with an OLED.

The third one is a external connector that would allow to read voltage (connected to ADC) if it was used. But it's not So also useless.

Best

1365

preenfm2 and preenfm3 / Re: New Preen FM 2 - love it!

« on: November 23, 2015, 09:36:31 AM »

I'm glad you like your preenfm2.
Thanks for this nice sounding demo.

If you want, soundcloud have other intersing demo:
https://soundcloud.com/search?q=preenfm2