MATRIXSYNTH: BMW Expander


Sunday, April 08, 2007

BMW Expander

Hylander Mini Wave Expander.

Title link takes you to more shots and info on Muff Wiggler.

"the Expander is used along with a Blacet/Wiard Mini Wave module, allowing the MW to address a total of 10 ROMs (as opposed to the 2 ROMs that a standard Mini Wave can work with), which ultimately gives your Mini Wave 2,560 individual waveforms. Additionally, the Expander adds CV control over the currently active ROM, and a signal inverter."

12 comments:

  1. Bayerische Motoren Werke

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  2. Yeah, I thought it was some new inline-6.

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  3. That's a really nice looking module.
    It's possible to cram all of this in a surface mount board the size of the board I made for the PPG waves. I thought about doing that but don't want to take away from Hylander's business since he does nice work.

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  4. in fairness, you can't really shrink the board that has the 10 ROM sockets on it by very much!

    and the rest of the circuitry sits on a little daughter board that piggybacks on the ROM board, so it's not actually using up any more physical space in your system anyway.

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  5. You could build it with something that reads SD cards or some kind of removable storage.

    This would be much easier for people without ROM writers too.

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  6. Hmm, not sure if using SD or CompactFlash can be as instant as the ROM chips. Can it?

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  7. We're talking about audio rate and tiny samples here. It would be no problem at all.

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  8. i don't think it has the permanance of ROMs though. modular gear should last for decades. I'm not even a very serious photographer, and i've had two SD cards (full of photos, wedding photos in one case) die or corrupt themselves on me before.

    ReplyDelete
  9. Uhh ROMs aren't permanent either. Several of my synths from the 70s/early 80s have had thier ROMs die.

    ReplyDelete
  10. ^
    It's as if the trolls need to hit every post on this blog.

    ReplyDelete
  11. >i don't think it has the permanance of ROMs though. modular gear should last for decades.

    You don't think they have the performance, but I'm telling you this can be done.

    So the idea that you back up your SD card on your PC doesn't strike you as at all useful? At least you're free to "burn" another SD card at will. How many of you have old EPROMers laying around?

    In addition you could use the smallest possible SD cards and still have room for banks upon banks of wave data. A single SD card to hold 10 ROMs would cost less than just 1 actual ROM chip.

    ReplyDelete
  12. Seriously... SD/Compact flash interface can be done with a PIC or AVR, why use ROMS? How permanent the ROM is depends on the ROM type. If it's fused, it's permanent. If it's EPROM it could fail in 20+ years.

    ReplyDelete

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