[sdiy] Nord Modular DIY

[Kylee Kennedy]

The Aleph is no longer in production, probably won't ever come back either.
The two developers/coders don't see eye to eye on it's development. Also
customizing the working code on that thing is via knobs and small screen.
Lame.

The new Raspberry Pi 3 hasn't been mentioned but it's running a quad core
1.2ghz ARM chip with wifi and blutooth built in. Run Linux on it and load
up PureData or write code natively there. It has a much larger community
then the Axoloti.

Kylee



On Thu, Mar 3, 2016 at 11:37 AM, Bruno Afonso <bafonso at gmail.com> wrote:

> At the end of the day, you just need some people invested in making it
> happen. Axoloti is here because Johannes decided to make it, so he designed
> a PCB board and coded all the needed bits to make it a reality and now
> there's a growing community around it. Communities grow fast when the
> barrier to entry is small and there is big potential for novelty. This
> seems to be the case, while you will likely not see the highest quality
> algorithms being developed by amateurs, it will be certainly good enough
> for most users. The STM32 is very capable for A LOT of audio stuff but not
> everything of course.
>
> To make a DSP version of the axoloti you would need someone that is an
> expert on DSP programming to pick a chip, design a PCB around it and spend
> a huge amount of time to make it have the nord/axoloti/max-like interface.
> THIS IS A HUGE EFFORT. Again, this is not something that people just decide
> to do on their spare time. Most people :)
>
> The idea that DSP is a must have for a digital modular approach is maybe
> naive. DSP destroy STM32 in many things, but not ALL. And in order for it
> to achieve high performance you need highly skilled people with the right
> mentality and ability to develop code with *others*.
>
> As far as I understand, if you implement high quality oscillators in the
> nord modulator you don't have a ton of juice left, see
> http://electro-music.com/forum/topic-65409.html
>
> Maybe the question you may want to ask yourself first is, what do you want
> to do that axoloti can not do right now and why is that? I can think of
> many reasons to use an axoloti vs reaktor for example, but unless you want
> to massively explore things DSPs excel at, axoloti is currently a very nice
> platform. I can only see it get better as ARM chips evolve.
>
> Have you considered exploring Aleph? It is DSP based, but as far as I can
> see, it has not attracted a lot of DSP coders and I would venture to say
> that it is a dream piece of equipment in theory. But programming it? Not so
> trivial is it ? What would you envision different than Aleph ? Also,
> compare the price difference and ease of development between aleph and
> axolotl.
>
> just my 2c
> b
>
>
>
>
> On Thu, Mar 3, 2016 at 12:05 PM Tom Wiltshire <tom at electricdruid.net>
> wrote:
>
>> +1 agree here too.
>>
>> Even on the dsPIC, the DSP instructions are able to do five different
>> things in one instruction - do the MAC, preload registers for the next
>> instruction, increment pointers, store the other accumulator. Efficient DSP
>> code on dsPIC boils down to making use of as many of these features as you
>> possibly can in a given situation!
>>
>> Tom
>>
>> On 3 Mar 2016, at 16:19, Tim Ressel <timr at circuitabbey.com> wrote:
>>
>> > DSPs have special hardware to speed things up. Even though an STM32 can
>> do single cycle MACs they don't have the other things that make DSPs fast.
>> Figure 4-5X speed improvement DSP vs CPU for a given clock speed, approx.
>> Of course one can put more than one STM32 in a design...
>> >
>> > --tr
>> >
>> > On 3/3/2016 7:39 AM, Simon Brouwer wrote:
>> >> Right, so the MS2000 used a 100 MIPS DSP56362 for 4 voices of
>> polyphony.
>> >>
>> >> I get that a DSP is significantly more efficient in signal processing
>> tasks than
>> >> a general purpose processor, but  wouldn't a STM32F446 (225 MIPS) be
>> able to
>> >> achieve similar performance?
>> >>
>> >> Best regards
>> >> Simon
>> >>
>> >>> On 03 March 2016 at 14:31 Gordonjcp <gordonjcp at gjcp.net> wrote:
>> >>>
>> >>>
>> >>> On Wed, Mar 02, 2016 at 08:17:07AM -0800, Tim Ressel wrote:
>> >>>> Hi,
>> >>>>
>> >>>> I've always been interested in a software based synth that was
>> >>>> configured through an app. I took a whack at it many years ago but
>> >>>> never got very far. Then I found the Nord Modular and that seemed to
>> >>>> fill the need nicely. Why re-invent the wheel?  But then they get
>> >>>> discontinued, and used G2s go for $1000.
>> >>>>
>> >>>> So maybe its time for the DIY thing after all.  Anybody interested?
>> >>> Grab a copy of the service manual for the Korg MS2000.  It looks
>> pretty
>> >>> DIY-able ;-)
>> >>>
>> >>> --
>> >>> Gordonjcp
>> >>>
>> >>> _______________________________________________
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>> >>
>> >
>> > --
>> > --Tim Ressel
>> > Circuit Abbey
>> > timr at circuitabbey.com
>> >
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