Category: Programming

Finally! Another Bandcamp release!

I’ve spent much of the last year sketching and going nowhere. Some of it has been lack of time, and some of it has been one of those long dry spells that afflict me every once in a while.

After a series of difficult trips to see family in Arizona this summer, I spent a fair amount of my time with my bandmate Whale Dream working over some sounds I’d designed for us centered around the granulations of soundtrack segments from old science fiction films. While we have not used the material, I found that it in conjunction with a patch I had on the Teenage Engineering OP-1F worked rather well together.

I hope you enjoy it!

Not quite drone, not quite noise…

This was originally the pump on our Nespresso machine, looped and mangled on an SP-404 before further mangling by a Kaoss Replay and then into an Eventide H-90 for some serious reverb.

This grew out of some work from Disquiet Junto’s “Consumer Drone” project that just wrapped up last week, but isn’t what I posted for that. I found this didn’t quite fit what I was looking for for the project, but something I thought might appeal to others.

New drones!

Another collection of drone sketches.
This one was fun. I did it entirely on the Teenage Engineering OP-1 Field. I did the sound design, laid down one four-track digital tape with the sounds, and then for the three tracks I used different tape speeds and effects on the master bus. The only thing done off of the OP-1 was the loudness normalization at the end.

CUPS-PDF Printing to an iPad via DropBox using a Raspberry Pi

Inspired by printing to a reMarkable tablet. You need to have Dropbox installed on your iPad, and/or a PDF viewer that supports Dropbox syncing.

  1. Follow the instructions here to install CUPS PDF printing on your Pi and set it up as a print server.
  2. Patch the PPD to avoid the problem of printing blank pages (steps here). You’ll need to scp /usr/share/ppd/cups-pdf/CUPS-PDF.ppd to someplace where you can do an upload from your browser.
  3. Install Andrea Fabrizi’s Dropbox Uploader script from here.
  4. Make a directory in your Dropbox to hold your PDFs. I chose _ so it would show up first in my list of files, to make scrolling easy.
  5. Crontab uploads of your PDFs. Do crontab -e, and add an entry such as
0-59/1 * * * * /home/kf6gpe/Projects/Printing/Dropbox-Uploader/dropbox_uploader\
.sh -f /home/kf6gpe/.dropbox_uploader -s upload /home/kf6gpe/PDF _

You’ll need to change the path to your dropbox uploader, the configuration file, the path to your PDF directory locally on the Pi, and your remote directory. Keep the -s flag, which tells the uploader to only upload changed files!

Speaking at BayCon 2019 this morning!

I’m pleased to say that I am one of the speakers lined up to give a talk at BayCon 2019 here in Silicon Valley this morning. I’ll be giving the talk “APRS Turns 35. What’s Next“, which looks at the current state of APRS, especially mobile and pedestrian mobile APRS. I’ll post a link to the audio or video of the talk when it’s available. If you want to use the materials as a basis for your own talk, you can get it at GitHub and make a fork.