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Guitaraoke: Automating Chord Generation for Karaoke Videos

2025-01-21
Guitaraoke: Automating Chord Generation for Karaoke Videos

To enhance his monthly Guitaraoke night, Dylan Beattie built a system that automatically displays song chords on karaoke videos. He uses the Vamp plugin to extract chord information from audio, then ImageSharp and FFMpegCore to generate a transparent video overlay with the chords, finally compositing this onto the original video. This involves audio analysis, image processing, and video composition, resulting in real-time chord display for guitarists. Future improvements include automatic beat detection and batch processing.

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(dylanbeattie.net)
Development Audio Processing

The Clockwise/Spiral Rule: Mastering Complex C Declarations

2025-01-01

This article introduces the 'Clockwise/Spiral Rule,' a clever technique for parsing complex C declarations. By spiraling clockwise through the declaration, replacing elements like arrays, pointers, and functions with their English equivalents, even the most intricate declarations become understandable. The author demonstrates the technique with several examples, from simple pointer arrays to nested function pointers, and shows how to handle `const` and `volatile` keywords. This method offers a practical and intuitive way to decipher confusing C code.

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(c-faq.com)
Development code parsing

Fujitsu's Monaka CPU: An ARMv9 Datacenter Beast with SVE2 and 3D Stacking

2024-12-14
Fujitsu's Monaka CPU: An ARMv9 Datacenter Beast with SVE2 and 3D Stacking

Fujitsu is set to launch Monaka, a new datacenter CPU slated for a 2027 release. This ARMv9-based processor boasts SVE2 extensions and utilizes 3D stacking, resembling AMD's EPYC architecture with a central IO die and disaggregated SRAM and compute units. Each Monaka CPU will pack up to 144 cores across four 36-core chiplets, all built on a 2nm process. The IO boasts 12 channels of DDR5 (potentially exceeding 600GB/s bandwidth), PCIe 6.0 with CXL 3.0 support, and air-cooling capability. Unlike its predecessor, A64FX, Monaka omits HBM support and targets the general datacenter market.

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(chipsandcheese.com)
Hardware 3D Stacking

Affordable Vision-Based GNSS-Denied Strapdown Celestial Navigation for UAVs

2025-01-20
Affordable Vision-Based GNSS-Denied Strapdown Celestial Navigation for UAVs

This paper presents a low-cost, lightweight strapdown celestial navigation solution for Uncrewed Aerial Vehicles (UAVs) operating in Global Navigation Satellite System (GNSS)-denied environments. Utilizing a modular system with a stabilized imaging system and a low-cost Attitude and Heading Reference System (AHRS), the algorithm achieves position estimates within 4 km accuracy. By performing an orbital maneuver through a full compass rotation and averaging position outputs, biases inherent in the strapdown system are nullified. An iterative method for in-flight geometric alignment of the camera with the AHRS, without external position input, is also presented. The results demonstrate the potential for low-cost celestial navigation as a redundant navigation modality in affordable, lightweight drones.

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(www.mdpi.com)
Tech UAV Navigation Celestial Navigation GNSS Denial

Steve Reich's Clapping Music, Reimagined with Flip-Disc Displays

2025-01-24
Steve Reich's Clapping Music, Reimagined with Flip-Disc Displays

An artist ingeniously recreates Steve Reich's iconic 'Clapping Music' using two flip-disc displays. By controlling the flipping of individual segments, they produce a rhythmic sound reminiscent of clapping. The project showcases a blend of hardware and software, demonstrating a unique artistic approach to sound and visuals. The code is open-source, inviting others to experiment and build upon the work.

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(hannahilea.com)
Hardware Creative

Drawing World Flags with Python's Turtle Graphics Library

2025-01-21

This post details the author's journey of using Python's Turtle graphics library to draw flags of various countries by parsing SVG files. Starting from a simple Java drawing exercise, the author progressed to a more complex SVG parsing implementation using Python and Turtle. They overcame numerous challenges including coordinate transformation, Bézier curve rendering, and style application. The author successfully rendered a large number of flags, including complex ones previously considered 'impossible,' such as the flag of Wales. While some issues remain unresolved, this post showcases the author's programming skills and persistence.

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(jtanx.github.io)
Development

Veryfront Figma Kit: Design Stunning Websites in Minutes

2024-12-14
Veryfront Figma Kit: Design Stunning Websites in Minutes

Veryfront's new Figma Kit allows users to design stunning websites in minutes. Boasting 100+ components, light and dark mode support, and full responsiveness, the kit streamlines the design process. Users simply choose components, build pages, add content, and seamlessly hand off designs to front-end developers. Its intuitive tools and pre-built components save time and boost creativity, earning praise from users who report a transformed design process and increased efficiency.

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(veryfront.com)
Design Website Design UI Components

Zipshare: Effortless Android Screen Sharing for Support

2024-12-18

Zipshare offers seamless Android screen sharing, perfect for internal help desks supporting retail staff or field employees. No signup or meeting IDs are needed for the screen sharer – just instant sharing, with the option to add your own voice or video chat. Created by Miso Software, Zipshare is a simple yet powerful tool for team collaboration.

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(www.getzipshare.com)
Development screen sharing Android app remote support

Goodfire Releases Interpretability Tools for Llama 3.3 70B

2024-12-23

Goodfire has trained sparse autoencoders (SAEs) on Llama 3.3 70B and released the interpreted model via an API. This allows exploration of the model's latent space through an interactive feature map. The team demonstrates feature steering capabilities and introduces improvements for easier and more reliable SAE-based steering. While showcasing progress in steering, limitations are acknowledged, including tension between feature steering and classification, and potential factual recall degradation at higher steering strengths. Future work includes refining steering methodologies and developing safety evaluations for responsible scaling of interpretability efforts.

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(www.goodfire.ai)
AI Interpretability Sparse Autoencoders

Design Tokens: The Key to Scalable and Consistent UI Architectures

2024-12-18
Design Tokens: The Key to Scalable and Consistent UI Architectures

This article explores the role of design tokens in modern UI architecture. By representing design decisions as data, design tokens serve as a single source of truth, enabling automated code generation across platforms for faster updates and improved design consistency. It details the layered organization of design tokens (option, decision, and component tokens), automated distribution processes, and how to choose the appropriate number of layers and token scope. Finally, it discusses when design tokens are appropriate and their limitations, helping readers determine their suitability for their projects.

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(martinfowler.com)
Design design tokens UI architecture automated design

PubPeer Review: TRF2-S Protein Regulates Axonal mRNA Transport

2025-01-16

A PubPeer post discusses a research article on TRF2-S, a novel RNA- and FMRP-binding protein crucial for regulating axonal mRNA transport and presynaptic plasticity. Published in Nature Communications, the study reveals how TRF2-S influences neuronal growth and function by impacting mRNA trafficking and local translation. This research sheds light on neural mechanisms and potentially offers new avenues for neurological disease treatment.

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(pubpeer.com)
Tech Neuroscience RNA-binding protein Axonal transport

An Evidence-Based Approach to Goal Setting and Behavior Change

2024-12-27
An Evidence-Based Approach to Goal Setting and Behavior Change

New Year's resolutions often fail? This article explores evidence-based strategies for goal setting and behavior change. Studies show that success rates for New Year's resolutions aren't as low as often perceived. The key is leveraging the "fresh start effect" and combining it with goal hierarchy setting (superordinate, intermediate, and subordinate goals), approach vs. avoidance goals, process vs. outcome goals, mastery vs. performance goals, flexible vs. rigid restraint, and implementing intention strategies. The article also details how tools like MacroFactor can support goal setting and behavior change.

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(www.strongerbyscience.com)
Misc goal setting behavior change New Year's resolutions

The Humble For Loop in Rust: Performance and Readability

2024-12-12

This article explores the trade-offs between the humble `for` loop and functional programming approaches like `map` and `fold` in Rust, considering both performance and readability. Through benchmarks comparing different methods on vector and nested vector operations, the author finds that `map` often outperforms `for` loops in simple transformations, offering better declarative style. However, for more complex scenarios such as flattening nested vectors or handling errors, `for` loops demonstrate a significant performance advantage and maintain greater code clarity. The author advocates for a pragmatic approach, choosing the best tool for the job rather than blindly favoring functional programming.

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(blog.startifact.com)
Development performance for loop

Highlighting Bash in Lua with Neovim and Treesitter

2025-01-28

The author built a tool to synchronize packages across multiple machines, using a Lua configuration file. To improve readability and editing of Bash scripts embedded within the Lua configuration, they leveraged Neovim and the Treesitter plugin. Treesitter, through its injection feature, identifies the `script` field in Lua tables and highlights its content as Bash based on a custom query. This significantly enhances code readability and maintainability. The post details the configuration of Neovim and Treesitter, along with the custom query to achieve the Bash highlighting.

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(xnacly.me)
Development

Microsoft's Windows 11 24H2 Update Breaks Scanners

2025-01-04
Microsoft's Windows 11 24H2 Update Breaks Scanners

Microsoft's latest Windows 11 24H2 update has rendered many users' scanners unusable. Despite Microsoft claiming to have fixed an issue with the eSCL scan protocol, numerous Canon users are still experiencing problems, with their multifunction devices failing to scan properly on Windows 11 unless connected via wired Ethernet. Canon has confirmed the issue and says Microsoft is working on a fix, expected in January 2025. Affected users can use the built-in Windows Fax and Scan app as a workaround. This highlights the compatibility challenges that can arise from major OS updates.

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(www.theregister.com)
Tech Scanner Issues Compatibility Problems

NASA JPL Horizons: A Powerful Tool for Exploring the Solar System

2025-01-03

NASA's Jet Propulsion Laboratory's Horizons system is a powerful online service providing precise orbital data and ephemerides for solar system objects. It offers multiple access methods including a web interface, command-line interface, email, and an API. Users can query information on asteroids, comets, planets, satellites, and more, and perform orbital calculations and visualizations. Horizons is a powerful tool for astronomers, aerospace engineers, and space enthusiasts exploring the mysteries of our solar system.

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(ssd.jpl.nasa.gov)
Tech Solar System Data

twtxt: A Decentralized, Minimalist Microblogging Service

2024-12-22

twtxt is a decentralized, minimalist microblogging service designed for hackers. Its documentation covers installation, quick start, usage, configuration, and API details. Users can follow and unfollow sources, post status updates, view their timelines and feeds from specific sources, and interact with twtxt via the command-line interface (CLI). The source code is hosted on GitHub and contributions are welcome.

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(twtxt.readthedocs.io)
Development decentralized

Chile Air Quality Map: Real-time Monitoring, Protecting Health

2024-12-27

The Chile Air Quality Map is a real-time air quality monitoring platform providing accurate and reliable air pollution information to Chilean citizens. Users can visually see Air Quality Index (AQI) levels for different regions via the map interface and take appropriate precautions based on pollutant concentrations. This platform enhances public environmental awareness and provides data to support government policies on air pollution control, ultimately aiming to protect public health and create cleaner air.

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(calidaddelairecl.vercel.app)
Tech air quality environmental monitoring

Go Iterators: Efficiently Handling Paginated APIs

2024-12-21

This article demonstrates how to efficiently handle paginated APIs using the iterator feature introduced in Go 1.23. Using the GitHub API as an example, the author shows how to write a custom iterator to abstract pagination logic, making the code more readable and reusable. The article focuses on the implementation and testing of the iterator, including mocking API calls and using pull iterators to ensure the iterator returns the expected results. Iterators allow developers to separate pagination logic from business logic, improving code maintainability and readability.

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(blog.thibaut-rousseau.com)
Development Iterators Paginated APIs

Four's Company: The Ideal Number for Engaging Conversations

2024-12-14
Four's Company: The Ideal Number for Engaging Conversations

Research by Professor Robin Dunbar of Oxford University suggests that four is the magic number for enjoyable conversations. In groups of five or more, the likelihood of shared laughter decreases significantly, with conversations often devolving into a lecture-style dynamic. While known for 'Dunbar's number' – the theory that most people can maintain around 150 social connections – his latest research focuses on smaller group dynamics, concluding that groups of four optimize engaging and enjoyable social interactions.

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(www.thetimes.com)
Misc social interaction group size conversation

FPGA-Powered Retro Console Recreates the PlayStation Experience

2025-01-28
FPGA-Powered Retro Console Recreates the PlayStation Experience

Retro Remake's SuperStation One, a $180 FPGA-based PlayStation clone, is set to launch in Q4 2025. This console boasts compatibility with original PlayStation accessories and supports other MiSTer FPGA cores, offering versatility beyond PlayStation games. Featuring modern connectivity like HDMI and USB-C, the SuperStation One also offers an optional SuperDock for playing original PlayStation discs. Its FPGA emulation ensures accurate game performance and low latency.

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(arstechnica.com)
Game

DIY Web Archiving: Preserving the Web, One Zine at a Time

2025-01-23

This 22-page, full-color zine, "DIY Web Archiving," empowers everyone to participate in preserving online content they value. Created by five authors, it provides a practical guide to web archiving, requiring no special expertise. Based on a November 2024 workshop, the zine explains why web archiving is crucial and how to do it. A full-color PDF and a poster version are available now, with a black-and-white version and printing instructions coming soon.

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(zinebakery.com)
Misc digital humanities

Meelo: A Self-Hosted Music Server for Collectors

2025-01-28
Meelo: A Self-Hosted Music Server for Collectors

Meelo is a self-hosted personal music server and web app, similar to Plex or Jellyfin, but with a focus on flexibility and browsing experience. Designed for music collectors, it identifies B-sides, rare tracks, automatically detects duets and features, supports various formats and metadata parsing, and fetches information from MusicBrainz and more. Meelo supports music videos, differentiating them from interviews or behind-the-scenes content. It's available now via Docker images.

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(github.com)
Development music server music collection

Home Assistant's Internet Accessibility Security Flaw

2024-12-15

Frederik Braun attempted to use Home Assistant for remote smart home control but discovered a significant security vulnerability. While Home Assistant offers username/password and two-factor authentication, its inability to handle URLs with embedded credentials and its requirement for root path deployment prevent additional security layers like web server authentication or obfuscated paths. This leaves Home Assistant's security solely reliant on its internal mechanisms, creating a security risk. The author calls on the Home Assistant community to improve its security configuration flexibility.

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(frederikbraun.de)
Development Remote Access

FLAME: A Lightweight Language Model for Spreadsheet Formulas

2025-01-22
FLAME: A Lightweight Language Model for Spreadsheet Formulas

Large language models are expensive to train and deploy for assisting with Excel formula authoring. This paper introduces FLAME, a transformer-based model trained exclusively on Excel formulas. With only 60 million parameters and a fraction of the training data used by larger models, FLAME achieves competitive or even superior performance on formula repair, completion, and retrieval tasks compared to models like Codex and CodeT5. This is attributed to its novel pre-training objectives and Excel-specific tokenizer.

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(arxiv.org)
Development formula

Ente Photos: On-Device Machine Learning for Enhanced Privacy

2024-12-15
Ente Photos: On-Device Machine Learning for Enhanced Privacy

Ente Photos utilizes a unique on-device machine learning approach, running models locally instead of in the cloud to guarantee end-to-end encryption and user privacy. Overcoming challenges of limited compute, diverse platforms, and restricted access to ML libraries, Ente achieves features like image indexing, clustering, semantic search, and face recognition. While local processing presents technical hurdles, Ente addresses them through model optimization, algorithmic refinements, and meticulous image processing, leveraging open-source tools like ONNX Runtime. The result is a consistent and efficient cross-platform experience, allowing users to securely explore and manage their memories.

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(ente.io)
AI on-device machine learning

Azerbaijan Airlines Crash: Missile Accident Emerges as Probable Cause

2024-12-25
Azerbaijan Airlines Crash: Missile Accident Emerges as Probable Cause

An Azerbaijan Airlines Embraer 190 crashed near Aktau, Kazakhstan, killing 38 of the 67 people on board. Initial reports from the investigation suggest the plane may have been accidentally hit by an air-defense missile while approaching Grozny. Surviving passengers reported hearing an explosion and seeing shrapnel hit the plane. The incident bears resemblance to the 2014 downing of MH17, also suspected to involve a surface-to-air missile. While the Azerbaijani president attributed the crash to a weather-related course change, the possibility of a missile accident is under investigation.

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(www.euronews.com)
Tech plane crash missile Azerbaijan Airlines
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