windytan

a blog about signals, sound, frequencies, waveforms. @[email protected]

[windytan @windyoona]

@spookygrowly Glad you enjoyed it!

[windytan @windyoona]

@hdsdi3g 3 x no, don't have the time unfortunately 😅

[windytan @windyoona]

New blog post: Ultrasonic investigations in shopping centres https://t.co/y0vNWxkgOj

[windytan @windyoona]

@hdsdi3g It's homemade software in constant development :) I've tried to make a simple UI for playing with FFT windowing and colour gradient settings to get the best spectral features visible.

[windytan @windyoona]

@tanks404 Hi, is the scan with the optical audio track yours? Thank you so much, it's been really intriguing :) Do you happen to know where the physical film reel came from? If there is any notes or dates etc?

[windytan @windyoona]

New blog post: Smoother sailing: Studying audio imperfections in Steamboat Willie https://t.co/5Z2g7P0U9E

[windytan @windyoona]

@hackerfantastic @travisgoodspeed 🖖

[windytan @windyoona]

@hackerfantastic @travisgoodspeed (But even if it was a buffer glitch, that doesn't rule out EMI as the cause)

[windytan @windyoona]

@hackerfantastic @travisgoodspeed I wouldn't rule it out of course, especially given that news context. But just out of interest, the sound has a repeat every 640 samples. This would be a plausible audio buffer size. Also, a mic picking QRM that far away is odd; why get that close with so much tx power to spare

[windytan @windyoona]

@hackerfantastic @travisgoodspeed Hi. If I had to guess, that is the sound of a microphone read buffer being not refreshed due to a stuck audio driver, (i.e. recording glitch). It's followed by the sound of the tires. I can't see the cyclist taking his hands off the handlebars to operate any device when it sounds

[windytan @windyoona]

@M0KVI @erickdahan Simple is right :)

[windytan @windyoona]

@tekkoooo Hi, sounds like a cool project. I unfortunately don't have so much spare time these days, but hit me up in dm with the details if you wish.

[windytan @windyoona]

Has anyone ever tried playing the rings of Saturn as if they were a vinyl record?

[windytan @windyoona]

@luigifcruz Notes app on my phone. I rarely scroll up :)
On a serious note, I find making a Trello board and adding a few basic first steps increases my chances of starting (and finishing) a project. Provided that I remember to go back to Trello.

[windytan @windyoona]

New blog post: Using HDMI radio interference for high-speed data transfer https://t.co/DA2n6OuINW

[windytan @windyoona]

Thanks for all the inspiring interactions at #disobey2023 :)

[windytan @windyoona]

@BatchDrake Wow, looking really nice! There’s a VHS feel to the artifacts, too

[windytan @windyoona]

SDR-based PAL decoder is still black & white, but after a notch filter on the audio the picture quality is getting a lot better.

[windytan @windyoona]

@LucasVB Love it! Music wants to be in a spiral :)

[windytan @windyoona]

New blog post: Spiral spectrograms and intonation illustrations https://t.co/baie9OdsqY

[windytan @windyoona]

@natevw Yes, the picture and sound are offset on the film - it seemed to range from 18 to 26 frames depending on the type of film.

[windytan @windyoona]

What would if sound like if a movie soundtrack was stopped 24 times per second, just like the picture is? https://t.co/LeS1mfObom

[windytan @windyoona]

@j_ptrsn Oh interesting, I’ve been looking into this too. Didn’t know some projectors did that.