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MIDIbox SID V2 Release + Feedback


TK.

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Do you guys reccomend only using the 8580's now adays with v2 or

would it still be okay to use 2 8580's for a stereo pair

and then a pair of 6581's.

it's your personal desition. I'm using 2x8580, 4x6582 and 2x6580

Disadvantage: the filter of 8580 and 6582 sounds equal, whereas the 6580 filters sound different (also between the two chips). Accordingly, I can use the super-polyphony feature only for the 6 8580/6582 SIDs

Best Regards, Thorsten.

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RC7 is now available with following changes:


  o possibilities to select a patch:
      - moving datawheel in main screen (as before)
      - using Page Up/Down button in main screen and patch main menu
      - selecting bank and patch in the ENS->SID menu
  o possibilities to select an ensemble:
      - pressing MENU + moving datawheel in main screen
      - using MENU + Page Up/Down button in main screen
      - using Page Up/Down button in ENS menu
  o ensemble can now be initialised with preset (-> go into ENS
    menu, press SHIFT button, select "Ini.Ens" option)
    Note that Patch and Bank settings won't be touched by
    this initialisation!
[/code]

One of the last function I'm planning to add for v2.0 is the possibility to invert AOUT outputs (based on a proposal from Seppoman, it can save external inverters).

I think that the best solution is to add 4 * 8 inversion flags into the ensemble configuration, so that they won't be touched when a new patch is selected, and that the firmware doesn't need to be recompiled if the external circuitry is changed.

Best Regards, Thorsten.

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I still feel sorry for your keyboard ;)

True words - you don't know, how much trouble I had with computer keyboards in the last days! Currently I've to practice the usage of a Mac keyboard - if you are missing some characters in my postings, you know why ;-)

RC8 is available; changes:


  o there is now a new EXT page within the ensemble menu which
    contains following options:
      - F2A (Filter-to-Analog): was previously located in SID menu
      - V2A (Volume-to-Analog): was previously located in SID menu
      - Iv1..Iv8: inversion of output voltage at channel #1..#8
[/code]

Best Regards, Thorsten.

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*whack* is the reminder I give people so they know I'm smiling and making a joke, not being serious or intentionally insulting them.

Damn!

*whack* wasnt exactly the most intelligent thing to put at the end of my sid order so!

Hope it doesnt get voided!  :P

Great to see the RC8 release, i didnt think we'd be this close to a V2 release so quickly.  ;D

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Hi TK,

I found a tiny little bit of strange behavior in the latest release: a note that hangs after a certain chain of events. I'll try to describe what I did and I hope that you can reproduce what's happend

1. Select Patch 7 (Simple Pulse)

2. Press and hold the sustain-pedal

3. Play a note and hold the key down

4. Play a second note and hold the key down (the pitch changes to this last note played)

5. Release the second note (but keep holding the first)

6. Release the first note

The strange things happen here:

A. When the second note is released (step 5) I would expect the pitch to return to the first note. However, it does not. Instead it stays on the pitch of the second note. I don't think that the sustainpedal usually does this with other synths.

B. After step 6 the second note still hangs, while I don't touch any of the keyboard controls. I don't think that's a good idea.

Can you reproduce this? I hope you can.

Greetings,

Rutger

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Hi Rutger,

I can reproduce this, but from my point of view it works like expected.

You haven't released the sustain pedal, accordingly all played notes will be held.

Especially B: I expect that all notes will be held until the sustain pedal has been released.

Once the pedal has been released, only notes should stay active which are still played on the keyboard.

Best Regards, Thorsten.

Update: this handling is important for arpeggios. On the other hand I see, that for a mono synth it could be more advantageous if the sustain pedal would only ensure that at least one note is played, regardless in which order keys have been released. This behaviour can be easily implemented, but I don't know how to differ between this and the current one (which is important as well) - the high flexibility is a desaster!

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RC9 is now available with the very very very last feature for the v2.0 release ;-)

(if bugfixes are required, additional RCs can be expected of course)


  o added optional FIP option (Filter Interpolation) which smoothes
    CutOff changes. It is especially useful when CutOff is changed
    via CC (-> low resolution) to reduce the steppiness.
    The option is not useful when the CutOff parameter is modulated from
    a fast LFO or envelope (on the other hand: it produces interesting
    effects in such cases ;-)
[/code]

Best Regards, Thorsten.

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Hi Rutger,

I can reproduce this, but from my point of view it works like expected.

You haven't released the sustain pedal, accordingly all played notes will be held.

Especially B: I expect that all notes will be held until the sustain pedal has been released.

Once the pedal has been released, only notes should stay active which are still played on the keyboard.

Best Regards, Thorsten.

Hi TK,

thanks for the quick reply. I can understand the way you interpret the sustain pedal, however I don't think notes should keep on playing if neither a key nor the pedal is pressed. In my explanation I forgot point 7. 'Release the sustain pedal'. And after that the note should stop, but it doesn't (!). Can you reproduce that too?

Greetings,

Rutger

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RC9 is now available with the very very very last feature for the v2.0 release ;-)

(if bugfixes are required, additional RCs can be expected of course)

  o added optional FIP option (Filter Interpolation) which smoothes
    CutOff changes. It is especially useful when CutOff is changed
    via CC (-> low resolution) to reduce the steppiness.
    The option is not useful when the CutOff parameter is modulated from
    a fast LFO or envelope (on the other hand: it produces interesting
    effects in such cases ;-)

Best Regards, Thorsten.

omg.jpg

Great news TK!  ;D

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The picture remembers me that there is still no OMG parameter available...

Hm... Oscillator Magnitude Gigantomator? ;-)

RC10 is now available.

Rutger: the sustain pedal should work better now. I was able to reproduce the issue. And I added some more code to differ between normal and arp mode.

I hope that it now works like known from other synths.

Other bugfixes/improvements: EXT inversion flag displayed again, increased minimum FIP slew rate for better response on slow modulation with large value changes, and positive curve is working like expected again.

Best Regards, Thorsten.

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Wow, again: deeply impressed! Thank you very much for the sustain fix, TK. It's something I use really often, so it's cool to have it working smoothly.

I think the MBSID V2 is getting near the point where all regular synth manufacturers should start eating their harts out because of the cool stuff they do not have inside their synths!

Greetings,

Rutger

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.I think the MBSID V2 is getting near the point where all regular synth manufacturers should start eating their harts

out because of the cool stuff they do not have inside their synths!

Right on, im beginning to think that maybe its one of the most advanced synths out there.

At least one of the most advanced diy synths out there anyway.

Most analogue synths usually have just 2/3 oscs, where as you can have 24 with this baby.

Ive never seen a synth with so many modes before either.

TK you should win some award for this! Seriously.

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I think I found a bug! ???

Turn on the MBsid and go to Core 2, Drum engine. Select SEQ and COPY PASTE = No MBnet response!

Turn off.

Turn on!

This time first go to Drum engine on Core 1!

Do not turn off!!

Now go to Core 2 and repete Drum engine - SEQ - COPY - PASTE, now all is fine...

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Im beginning to think that maybe its one of the most advanced synths out there.

I have said before: it's the most powerful analog synth avaiable, clearly. Just count the osc/vcf/vcas, and look at the routings.

That excludes modulars which are theoretically infinitely large ;)

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Right on, im beginning to think that maybe its one of the most advanced synths out there.

At least one of the most advanced diy synths out there anyway.

Most analogue synths usually have just 2/3 oscs, where as you can have 24 with this baby.

Ive never seen a synth with so many modes before either.

TK you should win some award for this! Seriously.

Yes... A Nobel prize for TK for services to the bleepy box constructing community! :D

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I have said before: it's the most powerful analog synth avaiable, clearly. Just count the osc/vcf/vcas, and look at the routings.

That excludes modulars which are theoretically infinitely large ;)

Yea man definitely. Ive never seen anything like it.

I suppose the only award TK could possibly get is in some kind of magazine for Synth of the year or something.

I wonder would the folks at NAMM have any interest!

They probably dont care  much for open source synths though.  :-\

I think TK should be recognised in some way for this.

WOuld be nice to see a profile of bio for TK actually, or does he remain a man of mystery?  ;)

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  • 2 weeks later...

A new release candidate is available:


  o multi engine: improved approach for routing LFOs to filters (only
    LFO of last assigned voice will be used for more predictable results)
  o reduced intensity of LFO pitch modulation for multi and bassline engine
    (Lead engine: intensity can be reduced by decreasing the depth
    of the modulation path)
  o 8 external switches can now be connected to
    - DOUT shift register (-> DEFAULT_EXT_SWITCH_DOUT != 0)
    - port J5 of the core mode (-> DEFAULT_J5_FUNCTION == 3)
    The switch states are stored in the patch structure, and
    can be accessed via Control Surface (EXT menu) or via Parameter Change
    (NRPNs/Knobs/Wavetables)
  o support for dumping ensembles via SysEx
  o the SysEx structures are now completely documented under
    doc/mbsidv2_sysex_implementation.txt
[/code]

Note that the file structure has been changed to improve the oversight.

Include files are now located under src/, documents under doc/

Best Regards, Thorsten.

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