Chris Anderson @chrisanderson1973@librem.one

Making my way through the synth oscillator design (Sawtooth)....adding parts to the KiCAD schematic editor and figuring out how to accommodate Euroack's connector and CV standards. The last time I got into a hardware synth project, there was no Eurorack standard.....I like it though and I already have a good testbed for an oscillator.

I've been working with this, on and off, since 2004.....an analog synth design.

New album out today!

https://chrisanderson1973.bandcamp.com/album/shrines-volume-1

Working up some new sounds tonight, with help from a tutorial.....

https://www.youtube.com/watch?v=Nly4nVsD58A

Gerber files ready......

This needs a little more notation and a few more checks, but it is looking good. After that and a BOM creation on Mouser, Digikey, etc. it will be time to order a board or two.

Fast work on the layout between yesterday and early this morning. Coming along very well. I may be able to leave out the SD card and second USB interface, but we'll see.

Finishing up schematics for the "coastline" board to handle the Daisy Seed module. Most of the focus was figuring out a way for adding more switches and potentiometers, replacing board-mounted input/output with panel-mounted components, while including the more critical parts of the Daisy POD design. Now, it is on to the layout and finalizing the BOM.

Just ordered! I have several software modules ready to test and then basically wrap into a box of some kind. These parts will be for initial prototyping with off the shelf Seed/POD kits. I may need to order a couple more Seed/POD kits soon.

Nice intro to the Seed/POD ecosystem! The example synth and delay worked well while the looper needs a little work.

I've decided to focus on two projects that I love: a modular synth and a guitar pedal. Here's the early timelines (roughly) as of April, 2nd, 2025.

New direction (sorta): I am using the Daisy Seed platform to come up with a a "simple" guitar pedal. The first goal is to convert an Eagle schematic and board to KiCAD. Not a fan of Eagle. Anyways, hardware has a pull on me.

Hardware-based DSP is too fun to ignore, so i am coming back toward that angle. A musician on Bandcamp mentioned the Daisy DSP products / reference designs back in December. I checked them out and i think they are great, so i ordered a kit today!

https://electro-smith.com/

I've been on Mastodon for a while, sharing some projects, etc. At the moment, I am considering doing a full court press on four projects! One is my old software synth project, AnaddrSynth, a second one is a guitar amplifier, the third is an audio plugin (maybe a DAW), and the fourth is maybe - believe it or not - an RPG game (2D map). Anyways, I am looking at a 2-3 month timeline to get at least one of these projects down the road.

Working on this today: The virtual effects box.... Implementing a few SC 589 algorithms in C/Swift for use in a Mac/PC plugin.

Looking at another run on two projects: A 2D map RPG and a DAW plugin

Schedule below.

Restarting work on the Swift-based effects box.... Tonight I cracked Swift UI view/subview resizing, and so now a nice UI is presented to hold effects and an effects graph. Plus, the main part is an audio plugin and it will function on both iPad and Mac's Logic Pro.

New direction: Swift-based plugin and (maybe) a standalone app. I researched how audio plugins on macOS/iPadOS work and the best direction is to use Apple's Swift language (and Swift UI) to create a software-only plugin system. This will include the current C++-based MIDI communications used to upload new DSP components/settings to the hardware.

At lunch, experimenting with audio plugins, using Apple's cookie cutter method. It works pretty well, really. I at least have the custom audio plugin showing up in either Logic Pro or Ableton. Step in the right direction!

Just beginning the Swift Audio Unit Project part of this..... I think it will take around a month to have a collection of Audio Unit plugins, including several effects and maybe two amp models.