From Brian Willoughby Sent Mon, Oct 1st 2018, 04:45
On Sep 30, 2018, at 7:43 PM, xxxx@xxxxxxxx.xxx wrote: > On 2018-09-30 13:56, Brian Willoughby wrote: >> On Sep 30, 2018, at 10:07 AM, xxxx@xxxxxxxx.xxx wrote: >>> On 2018-09-29 14:12, matrix wrote: >>>> If you look at Casio's VZ-1 there are buttons with LEDs that allow = you >>>> to enable and disable each operator. I would love an FM synth that >>>> had similar buttons above a control section that instead of = enabling >>>> or disabling the operators, they enabled or disabled the controls = for >>>> each operator. That way you could select what operators were = affected >>>> by the FM depth, harmonic control, etc.. Even with the Jellinghaus >>>> and Detronics DT7 I think you have to adjust each parameter = separately >>>> vs. having groupings you can assign. >>> The DX7 programmer I've designed allows multiple operator editing by = using a common set of controls for the operators (and switches to select = the operators to edit), which reduces cost significantly and makes the = programmer smaller (3U rack), but sacrifices dedicated sliders for each = operator. I put the development on hold to focus on other programmers, = once the DT7 was announced, but perhaps it's time to thaw the project. >> Hey, Doug. Would it be possible for a die-hard fan of the DX7 to buy = 6 >> of your programmers and use them in parallel? It might be worth the >> effort of a few firmware tweaks to enable that possibility. Then, = most >> customers could buy just one programmer, but some really serious FM >> programmers could link 6 of them (or 4, if your programmer works with >> the 4-op Yamaha FM). >> Brian >=20 > It would be possible to daisy chain 6 without any firmware tweaks = (they have merging MIDI inputs). However, if someone were interested, = it would be simpler (and a lot less expensive) for me to build a = dedicated 9U version, since it's just a firmware update and a few more = panels. It may even fit it in 6U, if I use 20mm sliders (instead of = 60mm). Thanks for the response, Doug. I=E2=80=99m fascinated by designing PCB = layouts so that the same board can be reused for multiple products, from = the smallest (most affordable) to the largest (only for crazy folks with = a huge budget). I suppose you=E2=80=99d need a new PCB to change from = 60mm to 20mm sliders, but maybe the PCB fab is not the most expensive = part of your manufacturing costs. I=E2=80=99m currently designing a device that can generate CV, and it = can be expanded by 8 CV channels at a time, up to 40 CV outputs in one = device. This is probably a lot cheaper than a custom 40-CV product = because the same 8-CV boards are just plugged in together. This way, a = bulk order of boards can be made to hopefully get a discount on fab, and = then everyone benefits from the lower cost. Brian