kɜ:ʳ 
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kɜ:ʳ
@chr
experiments with Audacity as an image editor. conclusions:
- many filters corrupt the image header, which then must be manually restored
- filters can only operate over rows of pixels at a time unless very small selections are used
- most intertemporal filters (echo, reverb, wahwah) smear the color channels together and result in grayscaling
analysis: interesting results are possible, but could be done more easily in a purposebuilt tool https://cybre.space/media/CYJiPsQjfJ3PEqnT51M
@chr Audacity is... an image editor now? Damson.jpg
I barely used it successfully years ago for music.... and that was BEFORE they fucked up the generate silence vs "time" or whatever the fuck it was called.
@chr to avoid corrupting the image header, try converting it to a header-less RAW first, then converting the result back
did this one in audacity a long time ago but i didn't write down what i used D: https://computerfairi.es/media/wUOlX4SxF9aJWPGG15w
@squirrelbutt @chr on the other hand you can manipulate ONLY the header and watch as it generates images ex nihilo
@chr you could also go the opposite direction and produce sound from image with e.g. VirtualANS https://ilse.bandcamp.com/track/charcoal-and-sine-on-gold
more experiments. this time mixing/rendering with tones, clicks, and noise instead of filtering the existing data. https://cybre.space/media/jgYWafStC_loPbLW3oM
the regular bars you see across the height of image are the dmtf tones for "hacktheplanet"
dtmf* that's what i get for not looking up what the acronym actually stood for (it's dual-tone multiple-frequency)
@chr Dual Frequency Multiple Tone a good way to remember it.
and here's with some actual music (MYTH.NFO from MASTER BOOT RECORD's "C:\>COPY *.* A: /V") rendered into it: https://cybre.space/media/uQT_FucoTSRXlmPOE2U
@chr nice to wake up sat morning to read abt your audacity experiments . the other day i saw the post from
@acostoss, it made me very curious, when i have time i will mix up image and audio from one of my music tracks @irgendlink thx for the steganography mention, just downloaded quickcrypto software
@chr Not saying you should do this at all, but it'd be kinda neat to see a whole movie where the video was filtered like this using whatever music is in the background
@chr hehe you're basically emulating VHS decay <3
@chr is it Linux' Audacity that one uses normally for transforming soundfiles?
@irgendlink it's a general purpose (crossplatform) audio editor, yeah
@chr thank you. So one can use it to process images. How about other files? Do you have a link to a tutorial? It coul be interesting for making art.
@irgendlink i don't i'm afraid, was just experimenting based on some posts i saw here the other day. however people have been doing this for a while, if you search up 'audacity image processing' you'll probably find some good blog posts or whatever.
i don't know how useful it'd be for other kinds of files... images and audio are the two big ones where the raw binary data is reasonably useful to manipulate
@chr i used to do experiments with steganography wich hides text in image files. It's a nice playground. I'll try out Audacity. Maybe there's happening some nice photo variations.
Thank you for the hints.
@chr consider: saving the image rotated 90 degrees and then rotating it back after audacity edits