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Oona Räisänen (windytan)
Lives in Helsinki
6,157 followers|11,002,026 views
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Ever wondered what a maritime VSAT is doing under its radome?
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Elmar Klausmeier's profile photoDavor Cihlar's profile photoWilfried Klaebe (Wonka)'s profile photogautam chekuri's profile photo
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Incredible stabilization!
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Doodling in Inkscape to redesign the buffers & windowing in slowrx... among everything else
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Ken Bellows's profile photoOona Räisänen (windytan)'s profile photoWorratep Suchon (DROIDVENGERS)'s profile photoJulius Friedman's profile photo
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It's a convolution, in this case duplicated the Inkscape object, sent it to back and applied Gaussian blur.
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Running my #gtkmm app on OSX. No problems at all. But XQuartz isn't running. o_O
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Oona Räisänen (windytan)'s profile photo
 
Also evidenced by the fact that pixel density is native. I think I like gtkmm so far.
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Also, there's an official Absorptions fan page on the mainstream social site.
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Oona Räisänen (windytan)'s profile photoDec Kelly's profile photoPeter Barrett's profile photo
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+Dec Kelly I don't really know, or care. I have never had a FB account and see no reason to get one.
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Case study: tinnitus with distortion
A periodically appearing low-frequency tinnitus is one of my least favorite signals. A doctor's visit only resulted in a WONTFIX and the audiogram on the right, which didn't really answer any questions. Also, the sound comes with some pecularities that warr...
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Emanuele Ziglioli's profile photoRobin Laurén's profile photoDec Kelly's profile photoMatthew J. Harmon's profile photo
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I listened to a science podcast lately where they were talking about tinnitus experiments on rats. Basically they had trained rats to do something when they heard a similar sound. They showed how the rats were showing the same reaction as hearing a tinnitus even when the nerve connection to their ears were cut off. So it could be a result of the brain "amplifying" the signal when it's soft and therefore creating some sort of hum.
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The Internet's visual storytelling community. Explore, share, and discuss the best visual stories the Internet has to offer.
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Dec Kelly's profile photoJarkko Yli-Heikkuri's profile photoJyrki Lehikoinen's profile photoJani Kasurinen's profile photo
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Building that used to house the TKK traffic lab.
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Have her in circles
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Some more GUI art for an older blog post. #Inkscape  
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Antti Brax's profile photoOona Räisänen (windytan)'s profile photo
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+Antti Brax
No worries, it's non-functioning.
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I recorded a soundscape on Helsinki metro. (Tascam DR05, internal mics, low cut filter disabled). Gotta love the VFD motors <3
windytan
Traveling on Helsinki metro by windytan
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Joel Gil's profile photoOona Räisänen (windytan)'s profile photoJack Strahan (Longshiren)'s profile photoDec Kelly's profile photo
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I'll try the same in Tokyo when I go back later this year.  Again, thanks.
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sound card + random parts. #DIY #teinitsejasäästin
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Tom Hangstin's profile photoslamet hendry's profile photoTiago Sousa's profile photoDarell Tan's profile photo
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Inspired by David Galloway's "Square Wave from the summation of odd-integer harmonic frequencies", I made a spin-off based on the same code:

http://www.khanacademy.org/computer-programming/spin-off-of-david-galloways-square-wave-from-the-summation-of-odd-integer-harmonic-frequencies/5154727290208256

This version provides an alternative solution that "completes the square" (so to speak), by alternating the phases and directions of the waves, in such a way that the projection on the other (real/imaginary) axis is also a square wave.

Thanks David Galloway for sharing your code.

Original program:

https://www.khanacademy.org/computer-programming/square-wave-from-the-summation-of-odd-integer-harmonic-frequencies/5389081424166912
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Munir Remahl's profile photoBen Krasnow's profile photoJean-Marc Liotier's profile photoMark Galloway's profile photo
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Oooh! I should try and find this Ted talk where a scientist explains that understanding the mechanics behind a phenomenon in no way takes away the beauty of it. Does anybody know which one i'm talking about?
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Have her in circles
6,157 people
Petri Saarinen's profile photo
xxgoblinxx's profile photo
ROMINA BEN's profile photo
Nathanael Newton's profile photo
Kalle Pietila's profile photo
Johan Arvidsson's profile photo
Alexander Korsak's profile photo
AISA ANISN's profile photo
Tânia Figueiredo's profile photo
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Basic Information
Gender
Female
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Tagline
Signals & electronics hacker.
Introduction

A self-taught signals hacker from Helsinki, Finland. CCC and 44CON speaker. Studies computers. Fond of electronics, mysteries, codes and ciphers, and vintage tech.

Absorptions is a blog about my hobbies.

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Currently
Helsinki