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A blog about signals, programming, music, and other stuff.

  • By Oona Räisänen
  • Based in Finland
  • Roughly one post per year
  • First post on

Posts per year

Data for this chart is available in the table below
Posts per year
Year starting Posts
2014 4
2015 6
2016 2
2017 5
2018 0
2019 2
2020 1
2021 2
2022 0
2023 1
2024 1

Any gaps could be due to errors when fetching the blog’s feed.

Most recent posts

Smoother sailing: Studying audio imperfections in Steamboat Willie
Steamboat Willie (1928) was one of the earliest cartoons with synchronized sound. That is, it had post-production sound effects; this was something new and exciting. Now that the cartoon has recently entered the public domain[bbc24] …
On , by Oona Räisänen, 1,799 words
Using HDMI radio interference for high-speed data transfer
This story, too, begins with noise. I was browsing the radio waves with a software radio, looking for mysteries to accompany my ginger tea. I had started to notice a wide-band spiky signal on a …
On , by Oona Räisänen, 1,807 words
Spiral spectrograms and intonation illustrations
I've been experimenting with methods for visualising harmony, intonation (tuning), and overtones in music. Ordinary spectrograms aren't very well suited for that as the harmonic relations are not intuitively visible. Let's see what could be …
On , by Oona Räisänen, 851 words