Jump to content

lemonhorse

Programmer
 View Profile  See their activity

  • Posts

    319

  • Joined

  • Last visited

  • Days Won

    1

 Content Type 

Posts posted by lemonhorse

  2. AIN - - spinnt ganz merkwürdig

    in Deutsch

    Posted

    Hallo Zossen,

    das hört sich seltsam an. Wenn die Störungen verschiedene IC's nur Temporär betrifft. 


    Hier noch 4 weitere Gedankenanregungen (aus der Zeit, da ich mal eine MB64 zusammengebaut habe):
    * Noch mal alle Brücken und Masseverbindungen auf den betreffenden AIN-Modulen überprüfen
    * Versuche die Kabellänge zu den Potis möglichst kurz zu halten (so länger das Kabel, um so leichter kommen Störungen auf)
    * Versuche es mal testhalber mit einem dickeren Massekabel (Masse Rückleiter)
    * Teste mal Kondensatoren (10uF und 100n) zwischen Masse und +5V einzusetzen - nahe bei den "Problem-Potis"

  3. MIDIBox AY (YM) V2

    in MIDIbox User Projects

    Posted

    Hello Yogi

     

    What is the max bank stick count?

     

    The MBAY supports just one Bankstick (127 Patches) and there is one internal Patch.

     

     

    Also wondering if MBAY can reproduce some of the ST 'tricks'; SID sound or Mod playback?

     

    Sorry, no Mod playback. But for more complex sound creation you can use the FX TABLE (with 32 steps in every patch):
    http://www.midibox.org/dokuwiki/lib/exe/fetch.php?media=8912:midiboxay_v2_fx_tab_planer_a3.pdf

     

    And here is a list with the MBAY MIDI Controller (CC):
    http://www.subfrequenz.net/midibox/mbayv2/MBAY2MenueLCD.pdf

     

    :-)

     

    - Lemonhorse

  4. Ju Control (JuCtrl)

    in MIDIbox User Projects

    Posted · Edited by lemonhorse

    Hi Joshua!

    Welcome tho the MIDIbox Forum (1 posts)!  :-)

     

    I would not advise You to use analog inputs (pots) instead of encoders - think of the patch workflow/handling (the JuCtrl is able to backup, load and send all Juno Alpha patches - from the Bankstick to the CS - from CS to the Juno Alpha - the Juno Alpha sends immediately the patch data to the CS via MIDI-Sysex, if You switch to another patch). Pots are not really made for this kind of dataflow/handling.

  7. AY-3-8912 MINI-SALE/Group Buy

    in Bulk Orders

    Posted

    I've tried *everything* with the chip - no noise. So whatever the other guys did - this specific chip we have does NOT make noise.

     

    Johnmx found a solution. Some Chips need a RESET after power on.

     

    MBAY V2.2 [bUILD 20130821]

    AY38912A/P & AY38912A/P from Microchip with Noise enabled.

    http://www.midibox.org/dokuwiki/doku.php?id=midibox_ay_ym_v2&#software

     

    But it takes a little modification: do add a RESET line (see: CS-Button & LED Config / 4xDOUT pin 31)

    http://www.midibox.org/dokuwiki/doku.php?id=midibox_ay_ym_v2&#hardware

     

    Best Regards,

    - Lemonhorse

  10. MIDIBox AY (YM) V2

    in MIDIbox User Projects

    Posted · Edited by lemonhorse

    Addendum:

     

    I notice an odd thing. The output volume increases when I change my midi controller to channel 2 and even more to channel 3. After that it doesn’t matter if I change back to channel 1, the volume stays at that maximum.
    Can you please test if this happens in your box? I'm using the default volume settings.

     


    After Start up the default Volume of Tone ABC is the maximum (=15).
    I can not confirm the described behavior with my MBAY.

  11. MIDIBox AY (YM) V2

    in MIDIbox User Projects

    Posted

    The noise is finally working.

    Great!

     

     

    I notice that you use this pin to generate a pulse on MIDI events. What is the purpose of that?

    [bUILD 20111128] Core8 J14 (RD4): MIDI NOTE ON GATE PIN (@TONE A MIDI CH » Note On/OFF (Note On = +5V / Note Off = 0V))

    The MIDI Gate-Function was a user request.

     

     

    Since I don’t have more AY chips, I would like to ask if you can do this modification and test the Microchip chips. ...

    I notice an odd thing. The output volume increases when I change my midi controller to channel 2 and even more to channel 3. After that it doesn’t matter if I change back to channel 1, the volume stays at that maximum.

    Can you please test if this happens in your box? I'm using the default volume settings.

     

    It's on my todo-list now.

     

     

    Best Regards,

    - Lemonhorse

  12. MIDIBox AY (YM) V2

    in MIDIbox User Projects

    Posted

    Hi johnmx,

    I ask myself: why do the other AY Chip functions (Tone ABC, Envelope, etc.) work?
    Somehow, this doesn't look like a bus timing problem to me (just a guess).


    How about a AY Chip exchange?

    I would like to check Your AY-3-8912A CBA GI in my MBAY.

    (Or we can do it the other way round - should I send You a checked AY38912 CDA GI Chip for testing?)

     

    Best Regards,
    - Lemonhorse

×
×
  • Create New...