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Ask HN: What small library or tool do you want that doesn’t exist?

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31–40 of 145 posts

Re: Ask HN: What small library or tool do you want that doesn’t exist?

#32
post #7

It's 2022, I just want to make a website that runs everywhere. some input boxes| some video| some whoosh

What issues with plain old HTML are you running into?

If you develop on Chrome given that it's the largest, then you have the following issues:

- Firefox will render stuff wrong

- Safari will render stuff wrong and something will break

Re: Ask HN: What small library or tool do you want that doesn’t exist?

#34

I wish VLC, plex, video players in general had the ability to automatically sync subs to audio. ( automatically , not manually) We have the technology; everything we need to do this exists. It's just not done automatically, and when using slightly off-sync subs, you have to fiddle with sub timing for ages until you find the right sync. Even more so when the subtitles have different off-sync issues for the whole movie…

Try SubSync, open source movie subtitle synchronization app. Build in feature like this in VLC would be awesome.

https://subsync.online/

Discussion on HN (4 months ago): https://news.ycombinator.com/item?id=29794153

Re: Ask HN: What small library or tool do you want that doesn’t exist?

#36
post #14

NAME swizel - takes csv input, selects columns and arbitrarily selects output order OPTIONS change the field delimiter (default comma) handle trimming whitespace per field (or an arbitrary set of chars, e.g. quotes) ignore or transform a prefixed one-line header or comment (default #) [bonus points] handle numeric fields (e.g. precision or float/int conversion) OBLIGATORY while all of this can already be done with a…

https://csvkit.readthedocs.io

Re: Ask HN: What small library or tool do you want that doesn’t exist?

#38
The top of the list is an open-source library toolbox for higher-order spectral analysis including time-frequency in a compiled programming language (C, C++, D, Rust, etc) for real-time applications.

This is an example of an old third party higher-order spectral analysis toolbox in Matlab but now Matlab has built-in toolbox due to its increasing popularity in signal processing of communication, biosignal, etc [1],[2].

The next generation communication systems (e.g. WiFi 7, 6G) will probably utilize this form of signal analysis for higher bandwidth and efficient communication [3]. The modern biosignal analysis (ECG, EEG, etc) is already moving toward time-frequency analysis and to have an open-source real-time time-frequency toolbox will be a game changer [4].

[1]Higher-Order Spectral Analysis Toolbox for use with Matlab:

https://labcit.ligo.caltech.edu/~rana/mat/HOSA/HOSA.PDF

[2]Time-Frequency Foundations of Communications:Concepts and Tools:

https://www.mins.ee.ethz.ch/pubs/files/SPMAG2013.pdf

[3]The OTFS Interview – Implications of a 6G Candidate Technology:

https://www.6gworld.com/exclusives/the-otfs-interview-implic...

[4]Analyzing Neural Time Series Data: Theory and Practice:

https://mitpress.mit.edu/books/analyzing-neural-time-series-...

Re: Ask HN: What small library or tool do you want that doesn’t exist?

#40

I would love a small conversion tool to read in medical imaging dicom files and output a volumetric vdb dataset. I've nearly written this on several occasions. Most, but not all, dicom files encode a 2d or a 3d scalar field and vdb files are the graphical effects industry standard format for those, usually used for fog, fire, or similar effects. They can also usually be converted to polygon meshes through a variety o…

Can you link a VDB spec?
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