toadstool

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About toadstool

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    MIDIbox Newbie
  • Birthday February 19

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  • Gender Male
  • Location Scotland
  1. Using Midibox SID in a 'traditional' way

    Thanks for providing the updated hardsid.dll nILS :thumbsup:, it really is very stable. I especially like the ability to change the flush method which seems to allow correct playback speed on a lot of the sid files that didn't play properly last time I tried (and the linux asid player version doesn't do this). It works perfectly with WinVICE2.3 and Goattracker2.73 on x86. Now... when will you be reprogramming the entire universe so that sammichSID will play stereo hardsid? :wink: edit: erm..... :blush: ...yes, well, the above was supposed to be in
  2. [S] MIDIBox gear LCD windows fromSchaeffer

    It's been busy around here and I forgot to feedback so... thanks a million Freddy, it's a perfect fit though I'm not looking forward to dismantling the control surface again!
  3. Control surface PCB for 16 encoders/LEDrings Bulk Order

    I've put my name down for two and updated the total (including adding ilmenator's 4 to the total) - total is now 73. I hope that is OK!?
  4. ALBS Waldorf knobs bulk order September 2012

    Mine also arrived in record time a couple of days ago. Thanks Martin!
  5. [S] MIDIBox gear LCD windows fromSchaeffer

    May I have 1x MB6582 window please? Thanks.
  6. ALBS Waldorf knobs bulk order September 2012

    Phew, just in time. I'm in! Thanks kristal=.
  7. Raspberry PI board

    FYI, if you haven't been following progress; there is an abbreviated datasheet for the Broadcom BCM2385 SoC that has just been released. Not bad considering Broadcom is not renowned for being open. Oh and the first batch of boards will likely be available to buy around the end of February, beginning of March.... though let's wait and see. :ahappy:
  8. sammichFM drums problem

    Yes, thanks again for your hard work TK. I gave the experimental build a test some days ago but didn't have enough time to fully evaluate it. It does seem to allow a slightly better control of the SD and HH pitches without them going astray. As you say, playing HH and SD together changes the pitch up or down depending on the Multi+FREQ settings. If Multi is 0 for both SD and HH then the pitch doesn't change when both are played. Strangely, changing TOM settings still affects both CYM *and* HH. It looks like TOM, CYM and HH are coupled (or tripled) and SD, HH and CYM are also coupled on another level. I don't understand how/why the drum section works the way it does and I tried to gain more insight by examining the comments in the OPL3 YMF262 emulator code for MAME (line 933 onwards for drums).... though I am not much wiser. From the MAME code comments it looks like the TOM affects the HH frequencies due to combined channel/slot in the phase generator (at least that is what it looks like)!!?? :hmm:
  9. MBSEQV4L Frontpanel PCB Bulk Order

    Mine came today as well. Thanks Smash. The dog thought it was for him.... :puppeh: and then he saw the postman's hand coming through the letter box :frantics:
  10. sammichFM drums problem

    Thanks for getting involved TK. Are you saying that the MBFM may be different than the sammichFM? Or are you saying that the SD frequency can only be changed using the HH FREQ settings and not using the SD Multiplier? I would be interested in doing some experiments to try and get a better understanding of how it works. I took a look at some of the MIOS source files but not being a programmer, found it very difficult to decipher what was going on. I am capable of setting up a tool-chain and compile environment though! :smile:
  11. sammichFM drums problem

    I'm beginning to believe that it is an OPL3 quirk too but still don't understand the logic behind the control of the parameters for the drums. As you say, the design page omits SD from "Adjustable frequencies (BD: independent, Tom/HiHat/Cymbal: coupled)" hinting that SD frequency/pitch is not adjustable at all. Clearly the SD frequency is adjustable, just not in a way that makes sense. Changing the TOM FREQ doesn't affect SD pitch whereas changing HH FREQ does!? It seems the coupling/crossover control is not as simple as just one parameter for all of Tom/HH/Cym. Checking the OPL3 technical manual doesn't throw any light on this subject. The programmers guide states that "...these instruments occupy only three melodic channels, only Bass Drum, Snare Drum and Tom-Tom frequencies can be set. Cymbal and Hi-Hat frequencies are fixed." This does not appear to be congruent with my experience when using my sammichFM. Did TK add some magic that allows changing of CYM and HH frequencies somehow? It all looks very complicated and I have to say that I am super impressed that TK managed to get any semblance of coherent sound out of the OPL3 at all! Programming sounds on an FM synth requires a degree in quantum mechanics never mind actually creating an FM synth itself! :wink:
  12. sammichFM drums problem

    ...just noticed a typo in the topic title - sorry guys, could someone change it to sammichFM without the space for the sake of perfection :)
  13. sammichFM drums problem

    I've had a scan through the forum and searched for a couple of keywords but haven't found anything related so have started a new topic. I love the massive amount of sounds and effects you can get out of this little box, the random function alone will keep me busy for a life time. Top marks to the crew again (you know who you are ;-), of course, for such a fantastic achievement. The MBFM user manual state that the only way to change the snare drum frequency is to change the multiplier. Actually, changing the multiplier has no effect on the pitch of the snare at all. (for reference, changing the multiplier for BD and TOM both have the desired effect). Strangely, changing the multiplier for Open HH does change the pitch of the snare (change the snare waveform to a full or half sine to get a note+noise instead of just noise) as long as only the snare is being played (no other drums). However, as soon as you play Closed HH, the snare drum pitch reverts to its original pitch :S. Even more strangely, changing the Closed HH multiplier also changes the pitch of the snare. This means that if you set the multipliers for Open HH and Closed HH differently (for different pitches), whichever HH you play preceding a snare, that will set the pitch of the subsequent snare... does that make any sense at all? Maybe this is easier to understand: Try setting Closed HH multiplier to 4 and Open HH multiplier to 8 for example. Then play SD, then CHH, then SD, then OHH, then SD and you will see what I mean. Also, changing either the CHH or OHH multiplier also affects the Cymbal pitch. Changing the CYM multiplier also changes the Cymbal pitch as expected. Similarly, go to the FREQ menu and change the HH frequency - it affects both the SD and HH pitch - I think it should only affect the HH according to the instructions!? Changing the Tom frequency affects the pitch of the cymbal, tom, open HH *and* closed HH. The user manual does state that it is impossible to have independent frequency settings for HiHat/Tom/Cymbal due to a design quirk of the OPL3 chip. This I understand - but why then are there separate frequency settings, one for HH and one for Tom? Changing the Tom's Freq and Decr setting affects all CYM, TOM, OHH and CHH whereas changing the HH Freq and Decr settings only affect OHH, CHH and CYM. Lastly, changing the HH Decr setting above 0 makes the snare pitch descend until it is silent and the only way to get snare sound back is to change HH Decr back to 0. Is this actually by design or is it a fault with either my components or soldering or is it a firmware bug? If it is by design, it seems that it is a little counter intuitive even though you can get some *very* cool, mixed up drum sounds. I suppose I am just a little frustrated that I can't change the SD pitch independently from the pitch of the HH and BD. I'm hoping someone else with a sammichFM (or a full blown MBFM!) can confirm my findings. I mentioned this to nILS on IRC and he briefly mentioned that he seemed to think it was by design.... :fear:
  14. How to test sid chips?

    This is what I did when selling mine: ....a *little* over the top perhaps but I do recommend the ploguechipsounds test using the short BASIC programme on a real C64. You could use the recordings of how the test sounds on the different chips I sold as a reference. The test is quite thorough though doesn't incorporate PWM sweeps, hard sync or ring mod tests.
  15. Celebrating completion of my MB6582. Finally, yipee! It is my precioussss. Don't even look at it.

    1. Show previous comments  3 more
    2. toadstool

      toadstool

      Of course, one hundred million thank yous to TK and Wilba too and SmashTV for supply. I'll put some photos up as soon as I manage to escape the vortex!

    3. jojjelito

      jojjelito

      Congrats!

    4. Flemming

      Flemming

      Does the It's-working dance!