Diy dac lol
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HiFi Subjectivist ¦ Audio Forum ¦ NVA User Group
Moderators: Kent , luketeaford , Joe. Post by ricko » Sat Aug 01, am. Post by Bjarne » Sat Aug 01, am. Post by ricko » Mon Aug 03, pm. Post by weasel79 » Mon Aug 03, pm. Post by weasel79 » Tue Aug 04, am.
Post by ricko » Tue Aug 04, am. Post by ricko » Wed Aug 05, pm. Post by mrand » Wed Aug 05, pm. Post by pld » Wed Aug 05, pm. Post by ricko » Thu Aug 06, am. Post by pld » Thu Aug 06, am. Privacy Terms. Quick links. Platform for DIY polysynths Post by ricko » Sat Aug 01, am If a fellow wanted to make a DIY polysynth and was interested on allowing different analog voice cards and architectures, because he had various unique designs but had no interest in the digital and DAC side of things, what options does he have?
There are many bus designs around, but they are all geared towards the specific voice architcture. Like backplane for the CrowBX. With a standard bus connector. This would make the voice card analog parts pretty straightforward. So is there anything around like this? EDIT: Ignore the above. I love the Ambika but it is a hybrid architecture with some quirks.
CC mapping header. Microcontroller with 1x MIDI in. Button and pot support enough for mode, data entty and preset selection. MiDI mapping switches. So that is all plausible. But there may be other betterways to do it. The requirement is that I want to put together a system without having to do any programming, and I want to be able to add, change or remove voice cards freely.
Using hardware configuration means that the mother card and DAC cards can then have absolutely generic code, with no programming required to support any specific voice card: no configurator or burning of specific microcontroller EPROMs, for example.
What do I gave against progeramming microcontrollers? I can do it was my job, years ago but it is one more obstacle, one more skill set, something that I would prefer to be able to buy in. Anyway, this lurch into detail may defeat my purpose, which is not so much as to propose a solution the last resort as to find out if one already exists to some extent.
Since that's the case, I'd say looking for answers in that industrial process control domain will yield better fruit than the music industry. But 2x3 of the logic gates are 3bit filter resolution. So effectively, 10 DACs and 7 gates per dual voice. Arp Prosoloist - 32 gates for resonant filter array, 17 for vco f a, and about 12 gates for envelops.
You already covered it, but I was going to mention maybe making cards for the Sequential synths. It would be pretty restrictive, as they'd still have to match the controls present on the synth itself, without altering firmware and modding the panel I guess but it's something that I've thought about a bit.
It would allow for a little bit of experimentation at least. It wouldn't allow for vastly different architectures though as you know. I do like the voice card designs though. At the very least, coming up with something like this would be cool. A lot of work however. You do not have the required permissions to view the files attached to this post.
You already mentioned it. I just didn't notice. Member dikkietron was working with well-regarded synth tech MarkMark on similar voice cards for their Anatol? It's intended to be much more than that, but the point for this thread is that they were working on something which now sounds quite a bit like what you're looking for. You might want to give him a shout -or MarkMark, who may not be a member here. Re: Platform for DIY polysynths Post by ricko » Tue Aug 04, am Looking at requirements, makes me re-jig the idea a little, with less extravagence.
To make sure it is viable for novel synths, the goal is that it could be used to host any of: ARP Chroma, Prophet 5, OB SEM 4, CS80, memorymoog, juno6, jupiter 8, sequential six trax, a polyphonic Arp prosoloist, a 16 voice polymoog-alike, a limited polyphony Korg PS alike, elka synthex, plus any combination of monophonic versions of all the above.
So support for a wavetable synth or sampler or anything that requires lots of data would be out of scope, though not excluded. So the platform supports one or more "synths". Each "synth" has a MIDI channel. A midi channel can go in a parallel to more than one synth.
Each synth has 1 to 16 voices of the same card type. Each voice uses 1 to four analog slots. Each analog slot has 10 analog CVs and 8 logic signals. There are two mother board, each with 8 analog slots.
Maybe 48mm x mm 1. In thst case, 8 of these dual cards would not onl support the simple Chroma 16 voice sbove, but also the various dual modes.
That would support an 6 voice multimoog arrangement, with 6 dual cards. Or 4, 5,6,8 whatever leaving 2 slots free. So this allows, eg Junos or Polymoog. Or a CS80 ring mod effect Wrinkle 3. The output board allows routing to some static effects for a synth. Eg a chorus unit, or a polymoog resonator array, or Korg travellor, etc. Re: Platform for DIY polysynths Post by ricko » Wed Aug 05, pm Just in case it is useful, here is a sketch if how it is working out from what people have said.
I've got everything I need to develop the analog side of a poly, but not enough time in life to tackle the digitals. Just my 2cents but what about beginning with a simpler version with a more fixed architecture? If I had just one basic platform but could redesign the voice cards any time I wanted, well that's enough modularity for me! Looking forward to seeing how this progresses. Cheers, Colin.
Increments of four mean you have a proto or test or repair module built-in to the process. You might find that your expected 'freedom' with new voice cards was instead severely limiting. Broad strokes are good, but it's the finer details that derail projects like this. Treat utility modules as stars instead of backup singers. Treat power supplies like Rockstars instead of roadies! Chase magic sound, not magic parts.
Scaling is always fun It could have a priority, so that e. That requires, what, 16 free IO bits? Last edited by ricko on Thu Aug 06, am, edited 1 time in total. Then you derive the bus architecture to allow that. My hunch is that a big central controller might not scale well.
Building my reference dac (xmos2 to i2s dac sabre 9023)
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My BIY/DIY DAC
I started using this Blog-Site subdomain from dddac. As I have some projects done in the past, it will not be all very chronological, but more what I like to show for now — It will be…. Read More Read More. The test goes on… This time mostly thanks to Stefan Wapstra, who was so kind to send me three 45Mhz Clocks. Next to those I had the Accusilicon Clocks and warmed…. Follow up from the earlier Post! In the earlier post I went into a lot of detail on this topic, so you might want to refer this post as well.
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That is taking the idea of DIY to a freaking whole new level, but I get it. Also, sorry for the bad English. Or maybe something else good that got out until I actually decide to pull the trigger in something. In any case, thanks for the insights. Hmmm with the zen can I would actually say allo since you could adjust how it colors the zen can to your liking.
AYA II DS, DIY edition
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DIY intruder
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ADC and DAC Noob Questions
I get confuzzled with wording sometimes, someone says plug in drums i think, oh… its an input LOL…. Having added that, I suggest Digikey or similar. Hey did you ever finish the board for this and if so do you have any detailed pictures of your wiring.
LOG IN. Responding to the many "which dac? So both were in the system at all times as I toggled between red book and hi-rez formats The reviewers consistent knock on the was the power supply. I upgraded the dacs, but eventually used it as a transport.
Moderators: Kent , luketeaford , Joe. Post by ricko » Sat Aug 01, am. Post by Bjarne » Sat Aug 01, am. Post by ricko » Mon Aug 03, pm. Post by weasel79 » Mon Aug 03, pm.
USD The ES chip is their simplest DAC chip which keeps many of the features of their bigger brothers at a minimal cost. You pay for the sound, not the enclosure.
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