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Introduction to Digital Filters with Audio Applications

2025-07-12

This comprehensive textbook provides a thorough introduction to digital filters and their applications in audio processing. Starting with the simplest lowpass filter, it progressively covers the theoretical foundations, design methods, and implementation techniques of various filter types, including linear time-invariant (LTI) filters, finite impulse response (FIR) filters, infinite impulse response (IIR) filters, and diverse filter structures and implementations. The book includes numerous Matlab and Faust code examples, along with rich audio application case studies, making it ideal for students and researchers in digital signal processing and audio engineering.

(ccrma.stanford.edu)

Development digital filters

Building the Worst Video Player with Three.js: A Nostalgic Pixel-Perfect Game

2025-05-18

Building the Worst Video Player with Three.js: A Nostalgic Pixel-Perfect Game

This article details the author's journey building a creative video player using Three.js and a physics engine. Instead of a traditional player, it's an arcade-style game where users must insert virtual coins to watch video, earning only three seconds of playback per coin. Players drag and drop coins into a slot, requiring precision to continue watching. This nostalgic and fun design challenges traditional video player design and showcases the limitless possibilities of web development.

(www.mux.com)

Development Video Player

arXivLabs: Experimental Projects with Community Collaborators

2025-02-07

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Participants embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv only works with partners adhering to these principles. Got an idea to enhance the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

The Paradigm Shift in AI Product Development: From Determinism to Probability

2025-08-22

The Paradigm Shift in AI Product Development: From Determinism to Probability

This article explores how general-purpose artificial intelligence (AGI) is disrupting the tech industry, particularly in software design, engineering, building, and growth. Traditional software development follows a deterministic model: known inputs produce expected outputs. However, AGI models are probabilistic, with outputs based on statistical distributions and inherent uncertainty. This renders traditional software engineering methods and metrics (like SLOs) obsolete. The author advocates for an empirical approach, using scientific methods and data-driven decision-making to build and iterate AI products, rather than relying on traditional engineering thinking. This requires organizations to transition from engineering to science, centering on data, and breaking down siloed departments for a holistic systems view.

(giansegato.com)

Development

Mistral Saba: A Lightweight AI Model for the Middle East and South Asia

2025-02-17

Mistral Saba: A Lightweight AI Model for the Middle East and South Asia

Mistral AI has launched Mistral Saba, a 24B parameter AI model trained specifically for languages in the Middle East and South Asia, including Arabic and numerous Indian languages with a particular strength in South Indian languages. This lightweight model runs on a single GPU, is fast, cost-effective, and deployable locally for enhanced security. Mistral Saba demonstrates strong capabilities across various applications, including Arabic conversational support, domain-specific expertise, and culturally relevant content creation, providing businesses with more accurate and culturally appropriate services.

(mistral.ai)

AI local deployment regional language

F#'s Untapped Goldmine: Typed Stack Traces (TST)

2025-01-16

This article explores the little-known Typed Stack Traces (TST) technique in F#, which uses the type system to track errors, solving the problems of error parsing and code maintenance in large monolithic applications. The author argues that TST, combined with Domain-Driven Design (DDD) and a new methodology called "Constraint-Driven Development (CDD)", can revolutionize software architecture and development processes, allowing developers to return to monolithic architectures and waterfall project management, simplifying the work of DevOps and SRE. TST leverages F#'s union types and pattern matching capabilities to create clear error type trees, improving code readability and maintainability. The article uses an interview exercise as an example to detail how to use TST, DDD, and CDD to build a simple REST API.

(rm4n0s.github.io)

Development

2025 Alonzo Church Award: Unifying Lambda Calculus Research

2025-06-23

Paul Blain Levy received the 2025 Alonzo Church Award for his groundbreaking work on the Call-by-Push-Value (CBPV) calculus. His research unified the separate streams of pure logical and applied effectful lambda calculus research. CBPV serves as a unifying framework for studying computational and logical phenomena, including effects, polarization, term normalization, type isomorphisms, and program transformations. Levy's contributions span algebraic datatypes, operational semantics, denotational semantics, and equational theories, significantly advancing the semantic theory of lambda calculus and its application to programming language modeling.

(siglog.org)

Development Alonzo Church Award

Pitt Freezes PhD Admissions Amidst NIH Funding Uncertainty

2025-02-23

Pitt Freezes PhD Admissions Amidst NIH Funding Uncertainty

The University of Pittsburgh has temporarily halted PhD admissions due to uncertainty surrounding frozen research aid from the National Institutes of Health (NIH). This follows an NIH policy to reduce the funding cap for indirect research costs (like building maintenance and support staff) from Pitt's current 59% to 15%. While a federal judge temporarily blocked the policy, Pitt preemptively paused admissions to assess the impact of potential funding cuts. Other universities, including USC and Vanderbilt, have taken similar actions. The NIH funding slowdown is already evident, significantly impacting Pittsburgh's life sciences sector.

(www.wesa.fm)

Tech Research Funding PhD Admissions

hyveOS: Serverless Swarm Orchestration for Drones and Robots

2025-01-17

hyveOS is a decentralized system for coordinating swarms of robots and drones, eliminating the need for internet connection or central servers. Developers can install hyved on various devices (like Raspberry Pis) and use diverse SDKs (including Python, Rust, JavaScript, etc.) to build applications. Its core strength lies in its decentralized architecture, enabling flexible and reliable swarm control adaptable to complex scenarios. Sample applications are provided for easy onboarding.

(docs.p2p.industries)

Development

Achieving Polymorphism with Dynamic Dispatch in Zig

2025-07-19

Zig, unlike many languages, lacks built-in interfaces. However, this doesn't preclude polymorphism. This article details a method for achieving dynamic dispatch polymorphism in Zig using vtable interfaces. This approach cleanly separates interfaces from implementations, requiring no changes to implementation types while enabling dynamic dispatch. It leverages function pointers to construct a vtable and uses an `implBy` function to connect implementations to the interface, effectively mimicking the functionality of interfaces in object-oriented languages. This allows storing different implementations in arrays or maps. While some boilerplate code is involved, the advantages are a clean, flexible, and reusable approach with minimal impact on implementation types.

(williamw520.github.io)

Development Polymorphism

FAA Hiring Scandal: A Decade-Long Legal Battle and Political Firestorm

2025-02-05

FAA Hiring Scandal: A Decade-Long Legal Battle and Political Firestorm

This article exposes a 2013 hiring scandal within the Federal Aviation Administration (FAA). In an effort to increase diversity among air traffic controllers, the FAA scrapped an effective aptitude test and implemented a flawed biographical questionnaire, resulting in numerous qualified candidates being rejected and sparking a decade-long legal battle. This event not only contributed to an air traffic controller shortage but also ignited political controversy, becoming a focal point of debate.

(www.tracingwoodgrains.com)

Tech hiring scandal

Cargo is Hiring its First AE: AI-Powered Sales, Full-Cycle Ownership

2025-03-07

Cargo is Hiring its First AE: AI-Powered Sales, Full-Cycle Ownership

Cargo is searching for its first full-cycle Account Executive to revolutionize its GTM strategy using AI and automation. This isn't just about hitting quota; it's about shaping the future of sales in an AI-first world. The ideal candidate boasts strong B2B SaaS sales experience, a proven track record of exceeding quota, and comfort with AI and automation tools. This role offers significant ownership, covering the entire sales cycle, with the potential to build and lead your own team. Cargo offers competitive compensation and benefits, including equity, unlimited PTO, and robust employee development programs, fostering a collaborative, fast-paced environment.

(www.ycombinator.com)

Startup AI Sales

Remaking Daft Punk's "Something About Us" in Ableton Live 12: A Deep Dive

2025-04-05

Remaking Daft Punk's

The author remade Daft Punk's classic track "Something About Us" using Ableton Live 12 and shares the entire production process. The article details the creation of each track, including instrument choices, effects, and techniques. It delves into the origins and characteristics of the "French Touch" music style and the challenges and solutions encountered during the remake. The author completes the project and gives high praise to Ableton Live 12, calling it their DAW of choice.

(thoughts-and-things.ghost.io)

Game French Touch

Bitcoin's First Baby: An Early Crypto Adoption Story

2025-06-11

Bitcoin's First Baby: An Early Crypto Adoption Story

In 2012, fertility doctor C. Terence Lee pioneered the use of Bitcoin as payment for medical services. He exchanged Bitcoin for sperm analysis and fertility consultations, ultimately resulting in the birth of the "world's first Bitcoin baby." While initial attempts were challenging, this story highlights early Bitcoin adoption attempts and exploration of this emerging technology. However, Bitcoin's price volatility and prominence as an investment have limited its use as a daily payment tool.

(blockworks.co)

Tech early adoption

Foxconn Navigates Tariff Troubles, Sees AI Server Boom

2025-03-14

Foxconn Navigates Tariff Troubles, Sees AI Server Boom

Foxconn CEO Young Liu revealed that US tariffs are causing significant headaches for tech giants like Apple and Amazon. In response, Foxconn's clients are increasingly planning US-based manufacturing collaborations to mitigate tariff impacts. While the consumer electronics business faces challenges, Foxconn's AI server segment is booming, with Q4 revenue up 78% year-on-year and projected to more than double this quarter. This growth is fueled by rising demand from smaller companies developing their own LLMs.

(on.ft.com)

Tech Foxconn AI Servers

DRM-Free Ebooks, Comics & More: A Curated List of Indie Publishers

2025-02-18

DRM-Free Ebooks, Comics & More: A Curated List of Indie Publishers

This article showcases a diverse collection of websites offering DRM-free ebooks, comics, magazines, and RPGs. The list features award-winning publications like Clarkesworld science fiction magazine, publishers specializing in translated East Asian literature (Honford Star), and independent comic creators (Roman Labs). The article also highlights University of Wales Press, providing open-access academic research. It's a valuable resource for readers seeking diverse and accessible digital content, spanning various genres and formats.

(libreture.com)

Misc DRM-free ebooks indie publishers digital content

SF Startup Seeking Full-Stack Data Engineer

2025-03-30

SF Startup Seeking Full-Stack Data Engineer

A San Francisco-based startup is hiring a full-stack engineer to join its agile engineering team. Responsibilities include creating and managing data collection scripts (from basic HTTP requests to browser and mobile app automation), building and maintaining automation/scheduling tools, creating data cleaning and normalization scripts (with opportunities to integrate ML/LLMs), designing data analytics dashboards and tools, and assisting with DevOps tasks. Candidates should be proficient in Python, SQL, and Unix, enjoy working on diverse projects concurrently, and be able to execute independently. Bonus skills include web crawling, Docker, Kubernetes, full-stack web development, mobile app development, and a statistics background. Benefits include lunch, unlimited PTO, 401k, platinum PPO health insurance, and a salary of $100K-$150K plus 0.25%-1% equity.

(www.ycombinator.com)

Development

Critical Vulnerability Found in ToDesktop Build Container

2025-02-28

A security researcher, investigating the installer for the AI text editor Cursor, uncovered a critical vulnerability in ToDesktop, the Electron app bundler service it relies on. Through reverse engineering and exploitation, the researcher gained complete control of ToDesktop's build container and access to its Firebase database, including sensitive keys for signing and uploading applications. This allowed for the potential deployment of malicious updates to millions of users, resulting in Remote Code Execution (RCE). ToDesktop responded swiftly, patching the vulnerability and acknowledging the researcher's contribution. The incident highlights the ongoing need for vigilance and improvement in software supply chain security.

(kibty.town)

Tech Supply Chain Security Vulnerability Exploitation

Apidog MCP Server: Powering AI with Your API Docs

2025-03-24

Apidog MCP Server: Powering AI with Your API Docs

Apidog MCP Server connects your Apidog API documentation to AI-powered IDEs like Cursor. This allows AI assistants to directly access and utilize your API specs, boosting development speed and efficiency. Generate code, search documentation, and more – all powered by your API definitions. Setup involves adding a JSON configuration to your IDE with your Apidog access token and project ID. Supports Apidog projects and Swagger/OpenAPI files. Currently in beta – your feedback is welcome!

(www.npmjs.com)

Development API Documentation

The Rise of Post-Literate History: A Growing Gap Between Scholars and the Public

2024-12-26

The Rise of Post-Literate History: A Growing Gap Between Scholars and the Public

This article explores the widening gap between the findings of professional historians and public understanding of history. Using Darryl Cooper's controversial interpretation of World War II as an example, the author points out that the public's understanding of history often remains simplistic and one-sided, ignoring years of in-depth academic research. The article compares the different accounts of the Crusades by Runciman and Riley-Smith, highlighting how Runciman's more literary style resonated more with the public while Riley-Smith's rigorous scholarship remained largely unknown. The author argues that limitations of modern academic publishing, declining levels of public culture, and shrinking attention spans contribute to the difficulty of disseminating quality historical work, potentially leading to the decline of historical research.

(www.compactmag.com)

Misc public understanding academic research

Fixing a Sneaky uname Bug in Apache NuttX RTOS: Static Variables Strike Back

2025-01-21

Fixing a Sneaky uname Bug in Apache NuttX RTOS: Static Variables Strike Back

This post details the debugging journey of a seemingly minor bug in the Apache NuttX RTOS's `uname` command. The initial problem: the commit hash was missing from the output. The investigation led down a rabbit hole, involving inspecting the kernel image, calling `uname` at kernel startup, and disassembling the application. The culprit? A broken static variable (`g_version`) responsible for storing the commit hash within NuttX applications. This unexpected behavior highlighted the importance of thorough debugging in embedded systems, emphasizing that even minor anomalies can signal deeper, more serious issues.

(lupyuen.org)

Development bug fix

Make Your QEMU 10 Times Faster: A Weird Trick

2024-12-17

While debugging NixOS tests, Linus Heckemann discovered painfully slow data copying times (over 2 hours) in a QEMU virtual machine. Performance analysis with `perf` revealed that QEMU's 9p server used an inefficient linked list (O(n) complexity) for file lookups. By switching to a hash table provided by glib (O(1) complexity), he reduced the test time to 7 minutes and successfully contributed the optimization to the QEMU project.

(linus.schreibt.jetzt)

Development 9p protocol

Implementing a Pseudorandom Number Generator with XORSHIFT32

2025-01-04

This devlog details the implementation of a pseudorandom number generator (PRNG) using the XORSHIFT32 algorithm. The author uses 1804289383 as the initial state, a number previously used in other engine implementations. The implementation is straightforward, involving bit shifts on the initial state. The code defines the initial state and includes a `getRandomNumber()` function that performs the XORSHIFT32 algorithm.

(www.strydr.net)

Development pseudorandom number generator algorithm implementation

llama.cpp Blazing Fast on Intel GPUs with IPEX-LLM

2025-03-06

llama.cpp Blazing Fast on Intel GPUs with IPEX-LLM

This guide shows how to run llama.cpp directly on Intel GPUs using the portable zip package and IPEX-LLM, eliminating the need for manual installations. It's been verified on Intel Core Ultra processors, 11th-14th gen Core processors, and Intel Arc A/B-Series GPUs. The guide details downloading, extraction, environment variable configuration, and execution examples, offering tailored instructions for multi-GPU setups and different operating systems (Windows and Linux). This achieves smooth large language model execution on Intel hardware.

(github.com)

Development Intel GPU

Hubble Tension Crisis Deepens: Universe Expanding Faster Than Expected

2025-01-19

Hubble Tension Crisis Deepens: Universe Expanding Faster Than Expected

New measurements confirm the universe is expanding faster than predicted by current theoretical models, deepening the Hubble tension crisis. Researchers made extremely precise distance measurements to the Coma Cluster of galaxies, revealing an expansion rate exceeding expectations. This confirms previous, debated results, showing the universe's expansion surpasses our current understanding of physics. Using Type Ia supernovae as the first rung of a cosmic distance ladder, the team arrived at a Hubble constant of 76.5 km/s/Mpc, consistent with other local universe measurements but conflicting with predictions from the distant universe, suggesting flaws in cosmological models.

(phys.org)

Tech Hubble constant cosmological models

Xcode's Constant Phone Home: A Privacy and Performance Nightmare

2025-03-01

Developer Jeff Johnson discovered that Xcode frequently connects to Apple servers during project builds, causing slowdowns. Using Little Snitch, he identified `developerservices2.apple.com` as the culprit; disabling connections to this domain dramatically improved build times. Further investigation revealed that Xcode also connects to other Apple servers, such as `devimages-cdn.apple.com` and `appstoreconnect.apple.com`, upon launch and project opening. These connections appear unnecessary and may involve the collection of developer data. Johnson argues that this behavior compromises developer privacy and recommends disabling unnecessary network connections.

(lapcatsoftware.com)

Development

South Korean Actress Kim Sae-ron's Death Sparks Debate on Celebrity Treatment

2025-02-18

South Korean Actress Kim Sae-ron's Death Sparks Debate on Celebrity Treatment

The death of 24-year-old South Korean actress Kim Sae-ron has ignited a widespread conversation about the harsh realities faced by celebrities in South Korea. Kim, known for her role in the hit film "The Man from Nowhere," struggled to revive her career after a 2022 drunk driving incident, facing relentless online criticism and negative media coverage. Her passing has prompted calls for reform, with many criticizing the unforgiving culture and demanding a more compassionate approach to celebrity missteps. The incident echoes similar tragedies involving other Korean celebrities and highlights the pervasive issue of cyberbullying.

(apnews.com)

Misc cyberbullying korean entertainment celebrity pressure

Backup: Beyond a Simple Copy

2025-07-20

Backup: Beyond a Simple Copy

The importance of data backup is often underestimated. This article, based on the author's experiences, recounts various data loss scenarios, emphasizing that backup is more than just a simple copy; it requires a comprehensive plan and strategy. It explores the pros and cons of full disk versus individual file backups and the crucial role of snapshots in ensuring data consistency. The author also shares their preference for a centralized backup server architecture and guiding principles for an efficient backup system, previewing subsequent articles detailing their FreeBSD-powered backup server setup.

(it-notes.dragas.net)

Development

The Rise of Independent Research: Escaping Academia's Walls

2025-02-25

This article explores the resurgence of independent research, focusing on the concept of the "gentleman scientist." Historically, many prominent scientists relied on personal wealth or family funding for their work, such as Darwin and Joule. Today, academia is often seen as the sole path to research, but this isn't necessary. The article uses Norman Borlaug as an example, showing how a lack of formal training can sometimes lead to more surprising results. While independent research lacks institutional backing and makes validation harder, it also offers greater freedom and risk-taking. The author encourages more people to pursue independent research, sharing their findings publicly to contribute to society.

(nadia.xyz)

Tech independent research academic system

London Police Storm Quaker Meeting House, Arresting Climate Activists

2025-03-30

London Police Storm Quaker Meeting House, Arresting Climate Activists

Over 20 Metropolitan Police officers forcibly entered a Quaker meeting house, arresting six women who were discussing climate change and Gaza. This is believed to be the first time in the history of the pacifist Quakers that police have breached one of their places of worship. The women, attending a welcome meeting for a non-violent protest group, were handcuffed, their belongings confiscated, and their student accommodation subsequently raided. The police action has drawn widespread criticism.

(www.thetimes.com)

Misc climate activism Quakers

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