@windyoona

a blog about signals, sound, frequencies, waveforms. @windytan@mastodon.social

 Europe
windytan.com
Joined December 2011
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567Media
New blog post: Ultrasonic investigations in shopping centres windytan.com/2024/06/ultraso…

Ultrasonic investigations in shopping centres

Many public address systems emit a continuous near-ultrasonic sound that is used for system health monitoring.

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New blog post: Smoother sailing: Studying audio imperfections in Steamboat Willie windytan.com/2024/01/smoothe…

Smoother sailing: Studying audio imperfections in Steamboat Willie

A deep dive into investigating and reducing the flutter distortion on the soundtrack of Steamboat Willie (1928).

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Has anyone ever tried playing the rings of Saturn as if they were a vinyl record?
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New blog post: Using HDMI radio interference for high-speed data transfer windytan.com/2023/02/using-h…

Using HDMI EMI for fast wireless data transfer

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

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Thanks for all the inspiring interactions at #disobey2023 :)
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What would if sound like if a movie soundtrack was stopped 24 times per second, just like the picture is? youtube.com/watch?v=6yyuMOBc…

What if movie SOUND moved 24 times per second?

This imaginary machine can do silly stuff with film and optical sou...

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What would it look like if the shutter was removed from a movie camera? Cool, I suppose. Some sort of vertical blur?
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Also, what if the shutter was made of transparent, colored plastic? The blur would be colored but the picture would be in full color. I’m giving out all my art ideas
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Finally, found a demonstration, though only in the projector youtube.com/watch?v=gznn9k4X…
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I recently bought a new vacuum cleaner. It's not the robotic kind, however it does support AES encryption. Why, you may ask? Because you can control its motor with a small 2.4 GHz radio controller on the handle :)
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New blog post: Spiral spectrograms and intonation illustrations windytan.com/2021/11/spiral-…

Spiral spectrograms and intonation illustrations

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

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Which sound is plotted here? It's somewhat well-known
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Voice harmonics and chords plotted on a spiral-shaped spectrogram (1 turn = 1 octave) youtube.com/watch?v=VeC8TIu8…
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Idea: Spectrogram that ignores any transposition in 12-TET :) Brightness is summed across the musical scale (log Y scale that wraps around every 12th root of 2). We can see how intonation wanders, esp. interesting with fretless strings/a cappella.
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What 1 minute of different kinds of audio looks plotted this way
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Debussy - Clair de lune played with a well-tuned and a slightly yet audibly out-of tune piano. (RIP that nice heatmap, forgot to save my GIMP presets at exit :)
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I got this idea after getting obsessed with the perfect intonation and seemingly effortless performance by this soloist youtube.com/watch?v=fvPynMI6…

Ēriks Ešenvalds - Only in Sleep | The Choir of Trinity College Cambridge

To celebrate the release of 'Northern Lights', our recording of the...

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Harmonics will also show up but it doesn't matter that much - the first really out-of-tune harmonic is number 5 and we can low-pass filter to get less of those
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musikhumor på svenska youtube.com/watch?v=28j1B4Sy…
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