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gecko39

Re:A C/C++ library for audio and music analysis on Tuesday August 13, 2024 @11:10PM (#41242182)
I'm considering doing some ML stuff for a mobile DJ app.. like beat/bpm detection, instrument / vocal separation etc. Have you seen anything recent that might be efficient enough to run on a mobile device and process a track in a reasonable amount of time ( less than song length ) ?
Re:Ask HN: What apps have you created for your own use? on Wednesday December 13, 2023 @08:27AM (#38627002)
Made a simple and free pushup counter app that uses the depth sensor on the iPhone to count push ups. https://PushupCounterApp.com The existing apps I tried were subscription based / unreliable / overcomplicated. It's a WIP since I hacked it together over a few days.
Re:Gaussian Splatting is pretty cool on Thursday September 07, 2023 @11:59AM (#37420945)
For the motion part, there is already an extension to gaussian splatting for moving stuff: https://dynamic3dgaussians.github.io/ You can also just string a bunch of them together to create an animation: https://twitter.com/8Infinite8/status/1699460316529090568 For relighting, there are lots of NeRF variants that do this -- it should be possible to optimize material parameters for the splats.
Re:There oughta be a bullet time video booth on Saturday May 27, 2023 @12:51AM (#36092158)
Here is a similar idea using 15 iPhones + NeRF rendering to make a bullet time video https://labs.laan.com/blogs/slow-motion-bullet-time-with-ner...
Re:RealityScan Beta: Mobile Photogrammetry on Monday April 04, 2022 @05:15PM (#30912015)
If you have a compatible mac there are several free apps like this one: https://apps.apple.com/us/app/3d-scanner-app/id1419913995
Re:Ask HN: How does my Instagram keep getting compromised? on Tuesday December 28, 2021 @02:34PM (#29717059)
I had a two letter name which got hacked. I called in a favor from a friend of a friend at instagram/FB and got it back.. then it happened again and I didn't want to ask the favor again. IIRC they did not yet have 2FA even though I asked for it ( I was assuming it would happen again and it did. )
I made a simple static site that processes user images and videos with WASM and it would be great for users to be certain that their data will not leave the browser. It seems possible to define some list of resources I plan on loading, and anything else should not be allowed.
Re:FIND3: High-precision indoor positioning framework on Thursday December 05, 2019 @07:46PM (#21718329)
If you have an extra smartphone, you can use some of the AR SDKs out there. ARKit has the ability to relocalize itself to a stored map ( e.g. your apartment ) The 6D.ai SDK can even do meshing for obstacle avoidance.
Re:Show HN: Face Generator on Monday September 02, 2019 @05:16PM (#20861824)
I was just going to suggest piping this into a pix2pix / CycleGAN trained on face edges for some creepy looking results.
Re:My App Is Dead in the Water on Tuesday November 13, 2018 @10:50AM (#18441831)
One option is to submit the app under a new dev account with a few tweaked variables ( name, colors, screenshots ) I feel like some of these rejections depend on the reviewer you get that day; and once an app is flagged, it's hard to recover.
Before smartphones: If society really faced a killer need for camera apps, everyone would already have a camera in their pocket.
For me the AR furniture / product placements apps are one of the better use cases ( ikea, amazon. ) They're really the best way to see what that new couch will look like in your house. Also the floor plan creation apps have seen a fair amount of downloads ( PLNR, etc ) Then there's the fart app of AR: the tape measure apps. ( AirMeasure, etc )
Hmm.. that's not working for me on a mac. I can select a single triangle? option/command + click would be quite convenient vs select each individual cell... since you could drag to erase.
Cool.. could you make it so command+click deletes the cell?
I had a situation where the coin balance was displayed as 0.0, but I could trade / withdraw by typing in the number I was supposed to have.
Re:Why I’m Digging Deep Into Alzheimer’s on Monday November 13, 2017 @11:44AM (#15687759)
What about this town in South America that has the highest concentration of Alzheimers in the world? The genetic mutation E280A seems to guarantee you get early onset Alzheimers ( at least I think it's 100% , couldn't find any info on what percentage with the mutation get it )

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4019728/

https://www.newscientist.com/article/dn28514-conquistador-br...

Would also be worth saying this is for iOS / osx somewhere obvious on the homepage. looks like a cool project!
Re:Show HN: Mojulo – Pixelated Math Rendering Sandbox Toy on Sunday October 05, 2014 @04:31AM (#8411772)
zoomy checkerboard by summing a few sinusoids

http://maxbittker.github.io/Mojulo/#NDAqKHNpbigoeC01MCkvKDQr...

Re:Show HN: Mojulo – Pixelated Math Rendering Sandbox Toy on Sunday October 05, 2014 @12:54AM (#8411485)
kinda psychedelic -- stare at it for a while:

http://maxbittker.github.io/Mojulo/#MjUwICogKCgoKCh4LTUwKV4y...

Re:Show HN: Mojulo – Pixelated Math Rendering Sandbox Toy on Saturday October 04, 2014 @05:22PM (#8410703)
here's one:

  10*((((100-x)^2+y^2)^0.5 + time) % 10) + 10*((((x)^2+y^2)^0.5 + time) % 10)
Re:Abstract visualization of biological neural network on Monday September 22, 2014 @03:34PM (#8352136)
Very cool, what's the backstory? Just a fun side project?
Re:Stellar on Thursday July 31, 2014 @01:45PM (#8115713)
sent you 1k, username: pay
Re:Beeplay.js: Write a song in JavaScript on Sunday June 08, 2014 @04:33PM (#7865813)
timbre.js (also from this person) is pretty cool too. http://mohayonao.github.io/timbre.js/

This weekend I used it to make a white noise generator for studying, etc.. http://www.noisemachine.co