Pladask wrote:If I remember correctly SC mostly works on PIC/Microchip microprocessors. There are a bunch of different 32bit PICs to chose from. Coded in C. Doing sound with a PIC32 you'd want the audio to be in/outputted via an external ADAC chip. For delay/looper stuff adding external RAM chips that communicate with the micro is an option.
Chankgeez wrote:
We should have a game show à la Name That Tune
Inconuucl: I can shoegaze that tune with 5 pedals.
other contestant: I can shoegaze that tune with 4 pedals.
Inconuucl: I can shoegaze that tune with 3 pedals.
other contestant: OK, shoegaze that tune!
Inconuucl:
My mistake it was the PIC32MX575F256H
Mostly similar.
I've since been considering porting the delay to the PIC32MZ series, since these have the 4Mb internal SRAM that I need for the 14 seconds of audio at the lowest fidelity 18KHz setting. Otherwise I need a $40 external serial MRAM chip for that amount of RAM (because I don't like messing with parallel memory).
Last edited by cloudscapes on Fri Oct 05, 2018 10:15 am, edited 1 time in total.
Chankgeez wrote:
We should have a game show à la Name That Tune
Inconuucl: I can shoegaze that tune with 5 pedals.
other contestant: I can shoegaze that tune with 4 pedals.
Inconuucl: I can shoegaze that tune with 3 pedals.
other contestant: OK, shoegaze that tune!
Inconuucl:
Personally, I'd love to try a SC pedal but I don't care what the box looks like. Obviously it'd be cool if it's in something awesome, but I have pedals in plain enclosures that are killer boxes as well. Whatever suites the mood.
"I do not have the ability to think rationally 90% of the time and I also change my mind at the drop of a hat".
Fantastic enclosure on a fantastic pedal? Double nice.
Of course availability and affordability are thresholds for my personal interaction with anything.
But sometimes pedals are like the rainforest or the polar ice caps. I don't have to see them or
"own" a piece of them in order for me to appreciate that they exist in the world.
cloudscapes wrote:My mistake it was the PIC32MX575F256H
Mostly similar.
I've since been considering porting the delay to the PIC32MZ series, since these have the 4Mb internal SRAM that I need for the 14 seconds of audio at the lowest fidelity 18KHz setting. Otherwise I need a $40 external serial MRAM chip for that amount of RAM (because I don't like messing with parallel memory).
I've been looking at the Teensy stuff and audio applications. They are pretty customizable, have onboard DAC.. but I'm sort of just dipping my toe at the moment. Bought an Arduino and started messing with the audio shields.
So you're blending between a high pass and a low pass in filtration stage it looks like to me, did you experiment with a band pass at all, or did the current design yield more extreme frequency sweep?
I count 8 opamp, just out of curiosity did you use a couple of quads? I'm not very savvy at circuit design and I know sometimes you get better results splitting it up into a couple doubles for close noise etc.. though that all seems to be handled by the microprocessor.
Every time I dream of my ultimate delay I always lust after a "repeats only" FX loop - which is pretty easy to do with an added TL072, but do you think with a design like yours it would be best handled by the microprocessor? Not sure if this is even the best place to ask these questions, but since we're all here celebrating your devices why not?
