STM32F7 series? (or adding delay to the FX section)

[o0]

Xavier, and plans to move to the STM32F7 series? Since it sounds you're already maxing out the CPU on the Cortex M-4. I would love to see delay based effects ( reverb would be nice, but probably too much to ask without a dedicated DSP). Since the PreenFM2 is multi-timbral, I find it challenging to layer outboard effects on it, since I would want add a delay to I1, a bit of stereo imaging to I2 and nothing to I3-I4 for example. I've played with the idea of using L/R output as a Dry/SendFX level instead, and use panning to control the amount of effect instead of the stereo position, but that's also a trade-off and only allows for a single effect.

The PreenFM2 is sitting next to the MicroMonsta, and the FX section really allows the sound to expand on that little synth. I would love to see a similar approach added to the Preen.

[Xavier]

The preenfm2 firmware uses the Standard Peripheral Libraries by ST, and  many parts would require to be rewritten to work with the  STM32F7 :
http://www.ipetitions.com/petition/SPLReinstatement 

Substractive synth requires FX as the base of their synthesis.
That's not the case of FM synths 
The FX section of the preenfm2 have been added rather late in its life.

A delay would requires memory which the stm32F* don't have.

I admit a preenfm2 with 4 different outputs would be better 

[djencode]

The preenfm2 firmware uses the Standard Peripheral Libraries by ST, and  many parts would require to be rewritten to work with the  STM32F7 :
http://www.ipetitions.com/petition/SPLReinstatement 

Substractive synth requires FX as the base of their synthesis.
That's not the case of FM synths 
The FX section of the preenfm2 have been added rather late in its life.

A delay would requires memory which the stm32F* don't have.

I admit a preenfm2 with 4 different outputs would be better 

What I would like to see for a DSP upgrade is so that preenfm2 could run at 24bit/48khz. Maybe in a future update make it so you can sacrifice multi timbrality (like cutting 1 or two of them) to increase the bit depth and sample rate.