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Subject: Re: [korgpolyex] Synth on a Chip?

From: support <support@...>
Date: 2018-12-07

Nice work! I always love a good PWM square wave!

I have designed a CPU replacement for the Poly-800 based on the STM32 F4. I have the board designed but not built or tested yet. It will replace the HAWK kit completely.

It is not yet designed to do any tone generation. But once I get into it, I plan on replacing the MSM5232 with another STM32 F4 board as well. And that will definitely be producing sound and will have digital filters as well.

I like what you're doing and maybe you would like to do the sound board for the Poly? You obviously have the technical chops for it.

On Fri, 2018-12-07 at 02:35 +0000, bperkins211@... [korgpolyex] wrote:
 


Curious if anyone else has dabbled with attempts to create a synth using a uC like STM32's.
There was discussion about it many moons ago, but things got quiet about it as time went on..

I just started learning how to dabble a bit with the ST micros and so far have managed to make a little noise with them:

A simple Pulse Wave sound using a "BluePill".
Best heard with some good bassy speakers-

https://www.youtube.com/watch?v=sf8gkzmJMAo&t=7s



A early DAC Saw Wave experiement using a F407VET6..

https://www.youtube.com/watch?v=_jDU2ayUkHs&t=13s