1. Nrsc5: Receive NRSC-5 digital radio stations using an RTL-SDR dongle
Total comment counts : 20
Summary
The article provides instructions and information about using the NRSC-5 receiver for rtl-sdr. It explains how to compile and build the program for different operating systems, as well as how to test and troubleshoot its functionality. The article also provides commands for tuning to different frequencies, playing audio programs, saving raw IQ samples, converting audio programs to WAV format, and switching between audio programs at runtime. Additionally, it suggests using Zadig to change the USB driver if there are issues with accessing the RTL-SDR device.
Top 1 Comment Summary
The article is about a graphical user interface (GUI) that is built on top of an existing technology called nrsc5-dui. The GUI is available on GitHub and allows users to interact with nrsc5-dui in a more user-friendly way.
Top 2 Comment Summary
The author of the article discusses their hobby project of recording an FM radio music station using a SDR (software-defined radio) and then removing the non-music portions for offline listening. They compare three methods of recording: analog capture from a standalone FM receiver, recording the “HD” radio stream using the nrsc5 library, and using an AirSpy SDR with the airspy-fmradion library. They find that the “HD” radio stream had no hiss or multipath effects but had noticeable digital compression artifacts. The airspy-fmradion library produced the best audio quality. The author also mentions using the inaSpeechSegmenter library to identify speech vs. music segments in the recordings.
2. milliForth
Total comment counts : 11
Summary
The article discusses the implementation of milliFORTH, which is claimed to be the smallest “real” programming language ever created. It mentions that milliFORTH is smaller than sectorLISP, and provides information about how to run and use milliFORTH. The article also acknowledges the influence of sectorFORTH in the development of milliFORTH.
Top 1 Comment Summary
The article discusses the implementation of various programming languages in very small sizes. The milliFORTH programming language, at 422 bytes, is claimed to be the smallest programming language implementation ever, beating out sectorLISP2 by 14 bytes. The article also mentions that sectorlambda implementation of Binary Lambda Calculus is shorter at 383 bytes, and the BLC self-interpreter is only 29 bytes. It notes that BLC is an esoteric programming language. The article provides links to more information about the mentioned programming languages.
Top 2 Comment Summary
The author describes their experience in high school of writing a FORTH programming language for the TRS-80 Color Computer using the OS-9 operating system. The FORTH program was implemented in around 2000 lines of assembly code, deviating from the standard by not supporting block-based I/O. Instead, it used a handle-based API similar to Unix, C, and MS-DOS. The programming environment was comparable to Linux, with the author using an ed or vi clone to edit files, running an assembler or C compiler, and running their FORTH program in an interactive environment.
3. Racket branch of Chez Scheme merging with mainline Chez Scheme
Total comment counts : 15
Summary
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Top 1 Comment Summary
The article discusses a feature in the IDE Racket where arrows are drawn on top of the code to link different occurrences of a hovered variable. The author expresses admiration for this feature and wonders how it could be implemented in other editors like vscode. The article also includes a link to a gif showing an example of this feature.
Top 2 Comment Summary
The article discusses the open-sourcing of Chez Scheme, which is a performant and compliant Scheme implementation. It is now the foundation of the Racket language. The author mentions that Chez Scheme was chosen because it implemented continuations well and had a good garbage collector. The article also provides a link for further information.
4. The first stable release of a memory safe sudo implementation
Total comment counts : 19
Summary
Prossimo has released the first stable version of sudo-rs, a Rust rewrite of the sudo utility. sudo allows engineers to transition between user and administrative accounts in the Linux operating system, and its security is crucial. The sudo-rs project enhances security by using Rust, a memory-safe language, and focuses on commonly used features to reduce the attack surface. The project also includes an extensive test suite that revealed bugs in the original sudo. The Wolfi Linux OS already incorporates sudo-rs, and there are hopes that others will follow suit. The development of sudo-rs has progressed well since its initiation in December 2022, and a security audit is scheduled for September 2023. Prossimo acknowledges Todd C. Miller for maintaining the original C-based sudo and providing guidance for implementing sudo-rs. Funding for the audit of sudo-rs has been provided by the NLnet Foundation, and support from Amazon Web Services has helped with the transition to memory-safe software. Prossimo thanks its funders and encourages others to get involved, donate, or become sponsors for their work.
Top 1 Comment Summary
The author of the article discusses the long history and continuous development of the “sudo” command, a widely-used UNIX command known for its high level of security scrutiny. The author questions the possibility of a development team being able to completely reimplement the command without inadvertently introducing bugs. They also inquire about the role of the Rust programming language in mitigating the risk of introducing bugs.
Top 2 Comment Summary
The article emphasizes two overlooked aspects of a project: excluding less commonly used features to reduce the attack surface and developing a thorough test suite that can even identify bugs in the original software. These aspects are crucial in writing safety-critical code, even more so than rewriting the code in Rust.
5. FFmpeg is getting multithreaded transcoding pipelines
Total comment counts : 13
Summary
The article states that JavaScript is disabled in the browser and advises enabling it or switching to a supported browser to continue using twitter.com. The article also mentions that a list of supported browsers can be found in the Help Center. It includes links to the Terms of Service, Privacy Policy, Cookie Policy, and Imprint. The article is © 2023 X Corp.
Top 1 Comment Summary
The user is suggesting that it would have been better to provide a direct link to an article instead of sharing a tweet that includes a link. The details of the article are not provided.
Top 2 Comment Summary
The article describes a performance improvement in the ffmpeg application on a 4-core ARM server. The author found that using a threading approach resulted in the application running approximately 2 times faster compared to the non-threading approach. The parallelism overhead was not significant. The article includes time measurements and CPU usage for both approaches.
6. Beej’s Quick Guide to GDB (2009)
Total comment counts : 12
Summary
This article is a quick guide to getting started with the GNU Debugger, gdb, from the command line in a terminal. It provides instructions on compiling code with symbolic debugging information included, starting the debugger, setting breakpoints, stepping through code, examining variables, and other debugging techniques. It also covers advanced topics such as stack manipulation, hardware watchpoints, attaching to a running process, and using coredumps for postmortem analysis. The article concludes with information on using windows and writing a front-end for gdb.
Top 1 Comment Summary
The author expresses appreciation for the source code and disassembly layout in a debugger, stating that it is exactly what they want to see. They wonder why this layout is not the default in GDB, a debugger with many features but is difficult to use. The author also mentions that they developed pretty printing scripts for their data structures and had to parse bits and bytes with GDB’s syntax due to limitations with other scripting languages. They suggest that a proper structure visualizer would be helpful.
Top 2 Comment Summary
The article explains how to use coredumpctl with gdb to debug segmentation faults. The author suggests that when a program crashes, they simply enter the command “coredumpctl debug” in the terminal, which launches gdb (or the default debugger) on the latest core dump. They then use gdb commands like “bt” to debug the issue. The article provides a link for more information.
7. New models and developer products
Total comment counts : 73
Summary
OpenAI has made several announcements and improvements to its platform. They have launched GPT-4 Turbo, the next generation of their language model, with a context window of 128k and improved performance. GPT-4 Turbo is available for developers to try at a lower price. OpenAI is also introducing the Assistants API, which allows developers to build agent-like AI experiences within their applications. They have released new features and tools, such as function calling and JSON mode, to enhance the capabilities of their models. OpenAI is also adding vision support to GPT-4 Turbo, allowing it to accept images as inputs. Developers can integrate DALL·E 3 and the text-to-speech API into their applications as well. OpenAI is launching an experimental access program for GPT-4 fine-tuning and a Custom Models program for organizations that require more customization. They have reduced prices across their platform and are increasing the tokens per minute limit for GPT-4 customers. OpenAI is also introducing Copyright Shield to defend customers against legal claims related to copyright infringement. Additionally, OpenAI has released Whisper large-v3, an automatic speech recognition model, and the Consistency Decoder, which improves image quality.
Top 1 Comment Summary
The article is a list of related ongoing threads on Hacker News. The threads include discussions on custom versions of ChatGPT, the release of an open-source ASR model called Whisper v3 by OpenAI, and an opening keynote livestream for OpenAI DevDay.
Top 2 Comment Summary
The article discusses the recent product announcements and price cuts by OpenAI. It suggests that these announcements are aimed at increasing lock-in to the OpenAI API platform due to increased competition. The author highlights that the GPTs/GPT Agents and Assistants demos signify a lack of portability. They also mention the need to carefully review the API documentation for more details. The article notes that the pricing for the DALL-E 3 API is significantly higher than others in the market. Additionally, the author observes that finetuned ChatGPT 3.5 is now priced at three times the base cost, making finetuning a more appealing option.
8. Why banks are suddenly closing down customer accounts
Total comment counts : 65
Summary
I’m sorry, but I am unable to summarize the article as I would need the text of the article to do so. Could you please provide the article or a brief description of its content?
Top 1 Comment Summary
Apologies, but I am unable to click on the link provided. Please copy and paste the content here, and I would be happy to summarize it for you.
Top 2 Comment Summary
The author of the article shares a personal experience with Bank of America. They were unable to fill up their gas tank because their bank account was locked. When they went to the bank, they were told to come back later due to the fraud department operating in a different time zone. As a result, the author was homeless for a week and unable to pay for tuition, causing them to drop out of university and return to their home country. The bank closed their account without prior notification, citing an agreement. The author also received a transfer from their brother three days prior, but their account balance was provided only a week later.
9. Show HN: Ladder, open source alternative to 12ft.io and 1ft.io
Total comment counts : 23
Summary
The article discusses the proliferation of paywalls and the importance of finding innovative ways to preserve access to information without compromising the sustainability of journalism. It introduces a web proxy called Ladder, which helps bypass paywalls and is a self-hosted version of 1ft.io and 12ft.io. However, the project is intended for educational purposes only, and the author does not endorse illegal or unethical activity. The article also mentions limitations of using the proxy, such as missing images or formatting issues on certain sites. It advises enabling Basic Auth for public instances to prevent unauthorized use. Overall, the article provides information about the Ladder proxy and offers insights on the issue of paywalls and access to information.
Top 1 Comment Summary
The author suggests that certain features should be included in a browser extension, similar to how AdBlock extensions exist. The reason for this absence could be personal preference or perhaps there may be technical limitations.
Top 2 Comment Summary
The user is asking if they need to create their own rulesets for each website they want to bypass when using a certain service. They have noticed that the repository for the service doesn’t include many rulesets.
10. Drunk grizzlies keep getting hit by trains in Montana
Total comment counts : 20
Summary
Since 1980, 63 grizzly bears have been killed by trains along a section of railroad near Glacier National Park in Montana. The bears are attracted to fermented grain spilled from railcars, which can render them unable to outrun oncoming trains. The worst year for fatalities was 2019, with eight grizzlies killed, and three have been killed so far this year. The grain ferments and acts as a tempting treat for the bears. Experts suggest implementing measures such as noise makers triggered by trains approaching known dangerous areas or reducing the train’s cargo load, but little has been done to protect the bears thus far.
Top 1 Comment Summary
The article describes a situation in which the presence of apple trees in a parking lot led to a problem. The apples would ferment and this caused squirrels to become intoxicated. As a result, the drunk squirrels would chase people around, resulting in amusing but potentially unpleasant situations.
Top 2 Comment Summary
The article discusses the lack of strict littering and secure load laws in Montana compared to other states. It mentions that while other states have criminal laws and regulations regarding littering and securing loads on vehicles, Montana does not seem to have similar rules for trains and certain types of trucks. The article suggests that introducing littering and secure load laws that apply in other states could help address this issue. Additionally, it mentions the possibility of environmental protection laws being applicable in this context.