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NPM debug and chalk packages compromised

https://www.aikido.dev/blog/npm-debug-and-chalk-packages-compromised
337•universesquid•1h ago•159 comments

Signal Secure Backups

https://signal.org/blog/introducing-secure-backups/
61•keyboardJones•33m ago•26 comments

Job Mismatch and Early Career Success

https://www.nber.org/papers/w34215
50•jandrewrogers•1h ago•6 comments

Our data shows San Francisco tech workers are working Saturdays

https://ramp.com/velocity/san-francisco-tech-workers-996-schedule
37•hnaccount_rng•52m ago•23 comments

Experimenting with Local LLMs on macOS

https://blog.6nok.org/experimenting-with-local-llms-on-macos/
113•frontsideair•2h ago•68 comments

OpenWrt: A Linux OS targeting embedded devices

https://openwrt.org/
29•pykello•1h ago•4 comments

Clankers Die on Christmas

https://remyhax.xyz/posts/clankers-die-on-christmas/
107•jerrythegerbil•2h ago•53 comments

Dietary omega-3 polyunsaturated fatty acids as a protective factor of myopia

https://bjo.bmj.com/content/early/2025/08/17/bjo-2024-326872
52•FollowingTheDao•2h ago•28 comments

Will Amazon S3 Vectors Kill Vector Databases–Or Save Them?

https://zilliz.com/blog/will-amazon-s3-vectors-kill-vector-databases-or-save-them
30•Fendy•1h ago•26 comments

Firefox 32-bit Linux Support to End in 2026

https://blog.mozilla.org/futurereleases/2025/09/05/firefox-32-bit-linux-support-to-end-in-2026/
20•AndrewDucker•3d ago•3 comments

Google gets away almost scot-free in US search antitrust case

https://www.computerworld.com/article/4052428/google-gets-away-almost-scot-free-in-us-search-anti...
111•CrankyBear•1h ago•47 comments

Meta suppressed research on child safety, employees say

https://www.washingtonpost.com/investigations/2025/09/08/meta-research-child-safety-virtual-reality/
300•mdhb•4h ago•171 comments

Browser Fingerprint Detector

https://fingerprint.goldenowl.ai/
29•eustoria•2h ago•18 comments

Immich – High performance self-hosted photo and video management solution

https://github.com/immich-app/immich
236•rzk•9h ago•75 comments

Building an acoustic camera with UMA-16 and Acoular

https://www.minidsp.com/applications/usb-mic-array/acoustic-camera-uma16
16•tomsonj•3d ago•1 comments

A complete map of the Rust type system

https://rustcurious.com/elements/
59•ashvardanian•4h ago•3 comments

14 Killed in anti-government protests in Nepal

https://www.tribuneindia.com/news/world/massive-protests-in-nepal-over-social-media-ban/
480•whatsupdog•5h ago•319 comments

Using Claude Code to modernize a 25-year-old kernel driver

https://dmitrybrant.com/2025/09/07/using-claude-code-to-modernize-a-25-year-old-kernel-driver
788•dmitrybrant•17h ago•257 comments

What if artificial intelligence is just a "normal" technology?

https://www.economist.com/finance-and-economics/2025/09/04/what-if-artificial-intelligence-is-jus...
36•mooreds•4h ago•25 comments

RSS Beat Microsoft

https://buttondown.com/blog/rss-vs-ice
178•vidyesh•6h ago•118 comments

The MacBook has a sensor that knows the exact angle of the screen hinge

https://twitter.com/samhenrigold/status/1964428927159382261
946•leephillips•1d ago•451 comments

Why Is Japan Still Investing in Custom Floating Point Accelerators?

https://www.nextplatform.com/2025/09/04/why-is-japan-still-investing-in-custom-floating-point-acc...
176•rbanffy•2d ago•58 comments

VMware's in court again. Customer relationships rarely go this wrong

https://www.theregister.com/2025/09/08/vmware_in_court_opinion/
178•rntn•5h ago•114 comments

American Flying Empty Airbus A321neo Across the Atlantic 20 Times

https://onemileatatime.com/news/american-flying-empty-airbus-a321neo-across-atlantic/
34•corvad•1h ago•34 comments

We Rarely Lose Technology (2023)

https://www.hopefulmons.com/p/we-rarely-lose-technology
37•akkartik•3d ago•38 comments

Indiana Jones and the Last Crusade Adventure Prototype Recovered for the C64

https://www.gamesthatwerent.com/2025/09/indiana-jones-and-the-last-crusade-adventure-prototype-re...
76•ibobev•5h ago•8 comments

Formatting code should be unnecessary

https://maxleiter.com/blog/formatting
299•MaxLeiter•18h ago•398 comments

'We can do it for under $100M': Startup joins race to build local ChatGPT

https://www.afr.com/technology/we-can-do-it-for-under-100m-start-up-joins-race-to-build-local-cha...
43•yakkomajuri•2h ago•10 comments

Integer Programming (2002) [pdf]

https://web.mit.edu/15.053/www/AMP-Chapter-09.pdf
19•todsacerdoti•3d ago•4 comments

Writing by manipulating visual representations of stories

https://github.com/m-damien/VisualStoryWriting
38•walterbell•3d ago•8 comments
Open in hackernews

Show HN: Veena Chromatic Tuner

https://play.google.com/store/apps/details?id=in.magima.digitaltuner&hl=en_US
51•v15w•10h ago
We're happy to present Veena Chromatic Tuner, an app we've developed for musicians, instrument makers, and ethnomusicologists who need more than just a standard chromatic tuner. Our goal was to create a tool that not only supports pitch detection but also provides deep support for diverse musical intonation systems and offers intuitive visual feedback.

The Problem We're Solving: Many tuners are good for Equal Temperament, but has limited support when it comes to the Just Intonation, microtonal music, or the specific requirements of instruments like the Veena where fret positions are determined by precise ratios.

Oscilloscope-like Visual Feedback: Instead of just a needle, you get a dynamic, oscilloscope-like waveform display.

In Tune: The waveform appears stabilized, giving you an immediate, confirmation of perfect pitch. Sharp: The waveform rotates right. Flat: The waveform rotates left.

This dynamic visual feedback, akin to a digital oscilloscope's trigger synchronization, offers immediate, precise adjustment cues that go far beyond what a static needle can provide, allowing for incredibly fine-tuned adjustments.

Unmatched Intonation Flexibility: We understand that music isn't just 12-TET.

Just Intonation Support: Perfect for Indian classical music, early music, and any tradition that relies on pure harmonic relationships between notes. This is crucial for achieving the rich, resonant chords and melodic purity that Equal Temperament can't always deliver.

Custom Temperaments: Go beyond presets! Create, save, and manage your own unique temperaments with personalized ratio settings. This empowers composers, researchers, and performers to explore microtonal scales and historical tunings with ease.

Dedicated Veena Instrument Mode: It allows users to play and tune notes across 24 fret positions, specifically highlighting how note positions on the fretboard vary relative to each other when pure intonation is applied. This feature is invaluable for instrument makers and those studying the physics of string instruments.

Other Key Features:

Multicultural Note Naming: Display notes in Western, Indian classical (Carnatic/Hindustani), and Solfege, with support for multiple Indian language scripts (Tamil, Devanagari, Telugu, Kannada, Malayalam).

Adjustable Reference Pitch: Customize A4 frequency from 440Hz to 432Hz or anything in between.

Transposition Support: Easily transpose notes for different instruments.

This app is would be useful for string players (veena, violin, guitar, sitar, etc.), wind instrument musicians, vocalists, music teachers, students, ethnomusicologists, and especially instrument makers and tuners who need to work with precise intonation and fret setting. Anyone exploring microtonal music will also find it incredibly useful.

We're actively developing the app, continuously adding features and improvements. While pitch detection is resource-intensive, we strive for broad device compatibility.

Check it out on Google Play: [https://play.google.com/store/apps/details?id=in.magima.digi...]

We welcome your feedback, questions, and thoughts!

Comments

Ruarl•9h ago
This is an interesting project. It isn’t immediately obvious to me how the visualisations aid the tuning process. Please can you say a little more about how you expect a user to interpret those as they perform tuning work?
v15w•9h ago
Pitch is an estimate based on sampled audio. Sometimes, it is not always accurately detected. Here, we have an additional visual cue that produces a stable/stationary waveform when the detected pitch is in tune with the selected reference note. A plucked tone has a slight variation in pitch from start to end; it rises and falls slightly. You can see this in the visual display. This would be very useful for fretting work, where each fret's tone is expected to have similar pitch variation.
KaiserPro•9h ago
Perhaps it lets you get that last 1-1/4 of a hz that might otherwise get lost?

Its also probably really good for beginners trying on their own to train them selves so they can spot when they are over/under tune

7bit•9h ago
You can't tune an instrument to 1/4 of a hz. Temperature, humidity, mechanic impacts all constantly keep working on the instrument, changing it's tune. Instruments are not high precision tools.

Whatever features this app has, they're just visual fancy with no value.

KaiserPro•8h ago
> You can't tune an instrument to 1/4 of a hz

I mean you can, but for stringed instruments keeping it to an absolute is hard. its the relative that you care about, at least for an instrument with a static fret. pretty much everything other non-keyboard instrument is down to you to adjust on the fly.

when you are within 1hz you get a beat at roughly 1hz, which is normally fairly easy to pickup.

Its part of the reason why brass instruments are never "wide" in stereo on recordings, because they tend to phase like a mother fucker. (there are ways around it)

mitthrowaway2•3h ago
If the weather is stable, my violin drifts less than 1/4 of a Hz over the course of a week, let alone a single playing session.
v15w•2h ago
Wow, impressive stability. In case of violin (bowed instrument), the waveform stability is visualised very well. Closer to sine wave. I tend to see less harmonics than plucked lutes like South Indian Veena. Please select 2 or 4 waveform periods in settings, set the desired reference note and try.
mitthrowaway2•1h ago
Thanks. I've been looking for a new app to give me immediate feedback on my pitch accuracy while I play, because the violin has no frets and my ear isn't good enough yet to identify whether I'm a little sharp or flat on each note. I think realtime feedback could really help me train my fingers.

I'll post more detailed feedback in a day or two when I've had time to experiment. Hopefully you'll still be checking the thread.

v15w•1h ago
> me immediate feedback on my pitch accuracy while I play

The visual feedback needs manual reference note settings. That is the only limitation.

dsego•8h ago
It's just easier to quickly notice a pattern moving or standing still than the needle moving by a few degrees. The needle can also appear twitchy or jump around and lag, making it harder to tune accurately.
v15w•7h ago
Pitch detection is computed and can sometimes be influenced by external noise or sampling limitations.It can jump. However, the visual display is based on the period of the reference note (or set frequency), allowing it to function independently of the detected pitch.
opminion•6h ago
This is a great answer. If I understood correctly: The feedback you give the user is different than a usual tuner in two ways: it is framed by the reference note, and is two-dimensional.
v15w•5h ago
Yes. The pitch displayed and needle interface is based on measured frequency. It also shows the nearest note name based on this measured value. The visual waveform interface's stability is based on reference frequency set. There is still scope for improvements to detect the pitch variation of plucked strings and provide an analysis. The tuner supports Just intonation which are based on ratios. Here fundamental, fifth and octave have perfect ratios (1, 3/2, and 2) and they can be visualized. Kindly try if you have an Android mobile. There is also a play button to sound the reference note.
7bit•9h ago
A tuner with ads. There's plenty of ad-free tuners, thank you.
v15w•8h ago
Thanks for the feedback! Ads help us keep the app free and support ongoing development.
hananova•7h ago
Then charge for it. Ads are definitely not okay when you're trying to tune your instrument. The real reason of course is that ads will make more money than a one time payment.

Also, the OP smells like vapid AI slop.

v15w•6h ago
We will be introducing an ad-free premium version once we finalize the implementation details. We also wish to clarify that English is not our native language.
porterde•8h ago
The visual feedback sounds very much like the strobe feature on my guitar tuner. I think the first like this was the Stroboconn in the 1930s.
v15w•8h ago
This visual feedback is very similar. It also shows octave changes i.e if the pitch detected is 0.5x, 1x or 2x the reference freq / note set.
dsego•2h ago
Peterson is the most known for their strobe tuners I believe. There are nowadays many other desktop and smartphone apps and pedals that have a strobe mode, but some are real strobes and some are only simulated. As far as I can tell, a real strobe will recreate the effect based on comparing the input signal frequency to a generated reference. A fake one will just use the estimated frequency (done by a pitch detection algorithm usually based on FFT) but instead of a needle offset or LED meter it will show a steady moving pattern, but it's not as responsive or as reliable as the real thing.
v15w•2h ago
The visual feedback uses time period (of ref note) and number of cycles to set the scale of waveform display. It doesn't depend on detected pitch.

I think strobe tuner's used neat analog electronics based reference and filters to visualise.

uundur•7h ago
https://www.facebook.com/calurtsdrums
uundur•6h ago
Permanent block
uundur•6h ago
Lupa password
paride5745•5h ago
Any plan for an iOS version?

Most musicians use Apple platforms, so focusing only on Android could be limiting.

v15w•5h ago
An iOS version is definitely in our plans. We intend to launch it once this app has gained sufficient traction.
sabellito•5h ago
Maybe you're correct about windows vs macos, but I find it hard to believe that the current distribution of android vs iphone users in the world is much different for musicians.
Intermernet•4h ago
This was true for decades but isn't really a thing now. Many studios and home daw set-ups are windows now.

Apple used to have the best audio subsystem but they've really dropped the ball.

Agreed that iOS is probably a good idea, but no longer crucial.

leephillips•4h ago
So “Show HN” is now for straight-up advertisements of commercial products?

This ad copy is in the smarmy style of the worst corporate slop.

mitthrowaway2•2h ago
- Instruments list should have more instruments

- Would appreciate other temperaments: Pythagorean-C temperament, perfect 5th, etc. See the gstrings app for example.

- Base note selection only provides tone and sharp options (C, C#, D, D#...) but as you know, outside of equal temperament, C# and Db (and so on) are different pitches.

v15w•2h ago
Thanks for your valuable feedback. Instrument list and temperament profiles would be expanded before adding other new features. The project started as a tuner app for South Indian Veena & as a fretting aid (based on ratios).

On base notes, have you tried using Just Intonation and other tuning profiles. They use perfect 5th. I will take a look at C# and Db difference in other temperaments. Maybe, our nomenclature needs a re-look.

mitthrowaway2•1h ago
Sorry, I don't only mean C# and Db, but just in general - the flat and sharp won't be the same outside of equal temperament. (I'm guessing details like that might matter to trombone players but I'm not sure; I play a C instrument myself).

I've only taken a cursory look and haven't tried playing violin with your app yet, but I'll post more feedback when I do!

aanet•1h ago
Sounds interesting... Is there a youtube demo? Or a web-version of this for those who want to check it out? Maybe an iOS version?

Thanks

v15w•1h ago
There is a short video here https://www.youtube.com/shorts/gZbP7svgBUM (not comprehensive. uses simulated sine wave and app generated tones). There is no web or iOS version.