Can all of these analog synthesizer knob PCBs be soldered within just one hour???

Enjoy the time-lapse vid and 80s synth-shread montage music and find out

New Synth Knob Multiplexer - 64 Analogs in one! Part 3

So you know I'm exactly halfway in the middle of my 64-in-1 analog knob multiplexer project, right? To keep it exciting, I did a "Soldering Challenge." Enjoy the time-lapse video!

My bigger goal is to demonstrate all 64 knobs at once, but that's so many circuit boards... and I just got back from a sublimely relaxing vacation... so I decided to challenge myself to build them all in one hour. If I succeeded, I motivated myself with a relaxing swim at Walden Pond.

New Synth Knob Multiplexer - 64 Analogs in one! Part 3

You've seen it run with 5 synthesizer knobs, but now the stakes are higher!  I'm going to daisy-chain three of my circuit boards together.  Then I'm going to run them at top speed.


And if that wasn't enough, I've been preparing a special treat, so watch through the second half of the video :)

New Synth Knob Multiplexer - 64 Analogs in one! Part 1

New! Fresh in the mail. A circuit board I designed. Check out the edgy and powerful design!

It muxes 64 analog signals, especially synthesizer knobs, into 1. It lets you read a wholllle lot of knobs with just a few pins.

You can use three pins from an Arduino or other microcontroller and read all 64 daisy-chain knobs!

You need this board to make professional synthesizers with lots of knobs.

Free Book on DSP in Python

Think DSP- Digital Signal Processing in Python

This book looks great - it's a work in progress by Allen Downey, a professor at Olin College.  Every example includes Python code to perform the calculations as well as read and write waveforms.  Many examples use music so that should be valuable to readers of this blog and people who like to DIYDSP.  So go ahead and download the free PDF or read it in HTML.

Axoloti - Embed A Digital Modular Synth In Your Instrument

This is very special to me.  This is exactly what I have been looking to do with the digital music instruments I have been designing and building - Give them a modular synthesizer editor.

This is a software and a hardware project.  It lets you graphically edit a patch for a DSP-based music instrument, then upload it into a small circuit board.  That means you can put that instrument into a box with sensors and controls, make a digital guitar, tune it to sound just the way you like it and even put all kinds of digital effects on it!  It's a very difficult and important project and I am sure it will lead to very many interesting kinds of new instruments, songs, performances and possibly even genres of art!

Here are the specs:

• Two 1/4" jacks
• Stereo headphone output
• MIDI Input
• STM32F4 processor (168 MHz w/ FPU)
• USB
• Modular synth editor on Desktop
• Cross-Platform support (Lin/Win/OSX)
• Approximately $100 incl. shipping

I highly recommend supporting Axiloti on Indiegogo.  I look forward to working with it a lot in 2015!

Volca Sample SDK - A Sample and Sequence Encoding Library for Volca Sample

A Sample and Sequence Encoding Library for Volca Sample

Did you know that you can upload samples and sequences into the Korg Volca?

Yes, it's possible and now it's much easier with this software from Korg, including the source code. Wow!

This program takes your sequences and samples and turns them into an audio file that you play into the Korg Volca Sample to record the data into its memory!  Wow!

It even comes with a Visual Studio project and a GNU makefile! 

This is seriously cool, thank you Korg!