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Messages - opus.quatre

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PreenFM2 / Re: Output volume vs polyphony..
« on: May 16, 2017, 09:53:06 AM »
Ah yes, ok.. And I guess I will have less aliasing when the polyphonique is reduced..
OK. . Thanx Xavier..
 Bonne journée. .

PreenFM2 / Output volume vs polyphony..
« on: May 15, 2017, 05:51:44 PM »
Hello there..
Is it normal if I get a big difference in output volume, when I turn the polyphony "knob" ??
On my preenfm2, the output volume is decreasing, as long as I increase the polyphony, and vice versa.. Is it the normal behaviour ? Or is it just on mine ?

And still.. Enjoy your sun..

PreenFM2 / Re: A higher polyphony ??
« on: May 15, 2017, 12:24:54 PM »
No worry Xavier..
I understand..
Have a nice day..

PreenFM2 / A higher polyphony ??
« on: May 13, 2017, 10:33:10 PM »
Hello there.. And most of all, hello Xavier.. Because this message is mainly for you..

Let's say that the subject will be : would it be possible to make a version of PreenFM2, with a bigger polyphony, by using a pair of Preenf405, one would be the master, and the other would simply be the slave ??

I know that the PCB is not made for it.. But we can probably imagine that, instead of placing the Preenf405 board in the IC support, we could use headers, and connect a second PCB which would hold both Preens..

My old Ensoniq ESQ'1 has a "overflow" option, in its MIDI menu, which allows driving a second ESQ'1 (or a ESQ'M expander) when the number of midi notes received, exceeds it's own polyphony (8 notes)..

The master Preen would then have to send exceeding notes to the slave, and performance control like pitch bend, mod wheel etc.. In fact a full bunch of incoming midi messages.. But not only ; it would also have to send all the preset (or combo) parameters, so that both play the same preset or combo..
The slave would be totally hidden, the user would not have access to it : it would only be there to obey to the master..

Each preset or combo that we would save in the master, would be saved identically in the slave's memory, same preset or combo number..

In terms of price, what would it cost ? Of course, an added PCB, and a second Preen.. What else should be doubled ?
What else should be added ?? I think that there would need a mixer.. Possibly digital mixer, or analog, but prior to the final stage, so that we can use the volume knob to set the volume of the mix..

I know, Xavier, that your time is not infinite.. You have a life to live, and you once said that you would like to have time to play your music.. I understand this very well, and I can just approve you..
And in fact, except me, I don't know how many people would be interested in having a more polyphonic version..
I'm just wishing that I could have a "wider" preenFM, (mainly for electric pianos, in fact) and by this message, I'm opening the topic, for discussion.. But if you say "no way", or "no time", or "too complicated", and even "useless when it concerns only you", then I would fully understand and abandon my wish..

Have a good week end..

PreenFM2 / Re: New slippers -> no USB
« on: May 12, 2017, 08:59:37 PM »
Oh.. I see.. Ok, it works.. Thanx Big Secret..

PreenFM2 / Re: New slippers -> no USB
« on: May 11, 2017, 07:33:21 PM »
"Preen is once again visible as a connected device on my PC  :D"

oh.. This makes me remark that my own PreenFM is not visible as a device.. Has never been, in fact.. Did I miss something when building it ?? Is there a parameter to set up, somewhere ?

PreenFM2 / Re: Z-plane/Morph filter
« on: May 11, 2017, 07:22:29 PM »
I arrive after the battle..
Just reading this topic, I thought..
Well, as long as one wants to use 2 sounds, and morph them at different ratio, the matrix can be the tool..
By selecting one modulation source, let's say the mod wheel, on both of the presets.. And the destination would be, on each of those presets, "all mixes" etc.. But the multiplier would be +10 on one preset, and -10 on the other preset..
Then you could use the mod wheel to morph from one preset to the other..

But another source could be selected, like after touch, velocity, breath controller..
But sure, you already had figured it out..

Have a nice evening..

PreenFM2 / Re: Connecting..
« on: May 11, 2017, 07:00:13 PM »
Désolé, Xavier, pour mon retard à te lire et à te répondre.. ET merci pour le temps que tu consacres à mon (petit) problème..
Maybe I didn't say that my PreenFM2 works correctly when powered by USB..
It simply doesn't work ONLY when I power it through the 9V entry..

"Is the LCD brighter when you switch on the preenfm ?"
Not sure I understand the question.. Brighter than what ? Brighter than when switched off, of course..
When I plug the 9V, the blue leds will be "on" for one or 2 seconds.. Unstable,  but on.. The LCD will be lit; or say bright, for the same amount of time.. But nothing appears on the LCD.. No welcome message or whatever.. and the 7805 will start heating the room..
That's why I ususally don't stay more than 5seconds..
Then I unplug it.. And if I immediately plug the 9V again, then nothing happens.. No blue led, no bright LCD..

And I don't know where is my multimeter, so I can't check anything for now.. I will, when I find it back..

But when plugged and powered through USB, everything works perfect..

PreenFM2 / Re: Connecting..
« on: May 04, 2017, 07:15:12 PM »
Merci Xavier..
No, there was no smoke, I was just kidding.. But still the 7805 was very warm, and nothing was working..
I checked the capacitors, and they are correctly souldered in the right polarity.. And so are the diods, and so is the 7805..

ANd stupid me, I searched for the MIDI connection in the build page, I didn't think it could be in the "the case" page.. Thanx again..

Have a nice evening..

PreenFM2 / Re: Keyboard scaling on envelope rates..
« on: May 03, 2017, 09:16:42 PM »
Hello there.. And hello Xavier..
So I tried this afternoon, and I understood that "decay is decay".. ie only "rate 2" is concerned by this "all op decay" matrix input..
May I ask for a "all op sustain rate" input ?? (If not, it's no big problem, though.. Just, it would be better with, than without)
Cause of course, converting now the "all op decay" into "all op rates 2&3" would ruin the already exisitng presets, so no way..

And also, I understood that Attack can be modulated by velocity.. And same for decay.. Great great great..
Preenfm2 is definitely a powerful synth..
I love it..
(Even if I would have prefered the 4 levels of each envelope, to appear on a single screen, and the 4 rates idem.. I'm sure it's more "talking" to our minds, than the actual display.. It would have helped us having an idea of the shape of the envelope.. No big deal as well..)

Have a good evening..

PreenFM2 / Re: Yamaha Sysex files for DX5
« on: May 03, 2017, 09:05:40 PM »
Noone else has an answer for "Served" ???

PreenFM2 / Connecting..
« on: May 03, 2017, 09:04:32 PM »
Hello there..

I wanted to power my Preenfm2 with an external 9V power chord.. Plus is at the center..
The blue leds flashed once, and that's all.. After a few seconds, the 7805 was terribly hot..
And I've been taught that electronics do need smoke.. Components are full of smoke, and once you let the smoke escape from it, then this component no more works; or very badly.. So I stopped immediately..

So my question is : which is the polarity and the voltage of the external power supply that we are supposed to use ??
Plus at the center ? at the periphery ??
And what will be the problem if anyone plugs a power voltage that would be polarity inverted ??
I wonder if I'd rather unsoulder this power supply entry, and have my preenfm always powered by USB..

Second question is :
About the MIDI sockets : I must connect pins 2 and 4 right ?? And there's no polarity, right ??

Thanx in advance for all your possible and wise answers..
And enjoy the rain..

PreenFM2 / Re: Keyboard scaling on envelope rates..
« on: April 26, 2017, 04:27:32 PM »
Oh.. thanx Xavier.. in fact I have looked at the windows editor and didn't see..
OK. . So at least there is a possibility to have a global decay key follow.. individual would be great,  but it's already very nice..
But what is "decay" ?? Rate 2 ?? Rate 3 ?? Both ??
Have a nice time..

PreenFM2 / Keyboard scaling on envelope rates..
« on: April 23, 2017, 06:57:44 PM »
Hello there..
I see that there is no keyboard scaling, or keyboard follow, for the envelope rates..

I understand that, through the matrix section, I can direct the keyboard-follow value (in fact, 2 values) to different destinations.. This includes individual operator attacks, all operators attack, and all operators release..
But nothing for the decay sections of the envelope (time 2, 3)..

Having a decay depending on the keyboard is truly useful for all pianos (acoustic and electric), for mallet instruments (marimba, vibraphone...) and for plucked string instruments (guitars, basses)..
Can this be changed ?

Enjoy the sun..

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