[sdiy] Nord Modular DIY

[Tim Ressel]

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