Show HN: Australian Acoustic Observatory Search https://bit.ly/3T2ibqT

Show HN: Australian Acoustic Observatory Search The Australian Acoustic Observatory ( https://bit.ly/3TnEwzF ) has 360 microphones across the continent, and over 2 million hours of audio. However, none of it is labeled: We want to make this enormous repository useful to researchers. We have found that researchers are often looking for 'hard' signals - specific call-types, birds with very little available training data, and so on. So we built an acoustic-similarity search tool, allowing researchers to provide an example of what they're looking for, which we then match against embeddings from the A2O dataset. Here's some fun examples! Laughing Kookaburra: < https://search.acousticobservatory.org/search/index.html?q=h... > Pacific Koel: < https://search.acousticobservatory.org/search/index.html?q=h... > Chiming Wedgebill: < https://search.acousticobservatory.org/search/index.html?q=h... > How it works, in a nutshell: We use audio source separation (< https://blog.research.google/2022/01/separating-birdsong-in-... >) to pull apart the A2O data, and then run an embedding model (< https://arxiv.org/abs/2307.06292 >) on each channel of the separated audio to produce a 'fingerprint' of the sound. All of this is put in a vector database with a link back to the original audio. When someone performs a search, we embed their audio, and then match against all of the embeddings in the vector database. Right now, about 1% of the A2O data is indexed (the first minute of every recording, evenly sampled across the day). We're looking to get initial feedback and will then continue to iterate and expand coverage. (Oh, and here's a bit of further reading: https://bit.ly/3T3ivWs... ) https://bit.ly/3Nab4ZY December 1, 2023 at 06:57AM

Show HN: Why an Open Source JSON-LD Database https://bit.ly/4a3Egf4

Show HN: Why an Open Source JSON-LD Database We are pleased to launch a public preview of an open source JSON-LD database which combines the simplicity of a document db with the analytical power of semantic graph. We hope it is approachable for most any developer while having the capabilities, when needed, for data interoperability, embedded cell-level security (ReBAC style), rich shape/schema restrictions, data provenance (time travel), and fact inferencing. Why did our team at Fluree build this? Data is increasingly critical for great decision making, AI, and more. The way we typically store and manage data, mainly as an application state store, makes it challenging to leverage data strategically. The popular approaches to leveraging data outside of an app are difficult to scale and have limited effectiveness (e.g. copy/paste of stale, un-permissioned data into a lake/ warehouse, custom python scripts for feature enrichment, ETL tools). We believe a shift in view for data management from application-centric to data-centric can address the root issue and reduce the needs of the additional layers. If all data was semantically interoperable (composable), available in a network where data was current, and data has more native capabilities around security and inferencing, we can address the foundational challenges – and is what we set out to build. Semantically interoperable data is not a new thing, semantic web/knowledge graph users enjoy many great database products, but the focus has been analytics and inferencing, and often run on a laptop or isolated server for an analyst – plus, they are considered to have a steep learning curve. Having a platform that is optimized for operational data and minimizing the learning curve, while retaining the power, are the largest obstacles we had to overcome. Beyond semantics, data that can be dynamically shared and collaborated on in a network is where we think real data leverage emerges, but data owners need programmatic policy control to agree to participate. Controlling time also becomes critical, as reproducing results across a federated network is impossible without it. We built programmability into the data layer to address all of these needs, and shift our thinking from a “database” being a mutable thing, to an immutable thing - where every update to a database creates a new immutable database, much like every “git” commit creates a new immutable version of your source code. We are still early on our journey, but would love any feedback, thoughts, help (we are open source). We hope our vision aligns with many and the product resonates. Feel free to register for an account on our cloud version, and reserve your data namespace in what we’d like to become a valuable and trusted data network. https://bit.ly/3uGVoXJ November 30, 2023 at 10:02PM

Show HN: Qdorks.com – Advanced Google search query composer https://bit.ly/47WfjQD

Show HN: Qdorks.com – Advanced Google search query composer Hi HN, qdorks.com is an advanced Google search query composer I have been working on lately. It makes it super easy to write complex Google search queries and save them for later usage. Main features: * Query composer with complex grouping, logical and exclusion operators per clause. * Share your queries with others so they can easily copy and modify the query. * No need to register; only when you want to save the queries. * AI support for PRO users. * More to come... I am pretty happy with how it works and would love your feedback! Happy to answer any questions. Thank you! https://bit.ly/47ZFyWz November 30, 2023 at 03:50PM

Show HN: Pl.aiwright – Research Platform for GPT-4 Dialogue in RPGs https://bit.ly/3Rmthpw

Show HN: Pl.aiwright – Research Platform for GPT-4 Dialogue in RPGs https://bit.ly/3sVGwUK November 30, 2023 at 06:10AM

Show HN: React Native AI – Full stack framework for building mobile AI apps https://bit.ly/3N8ld9s

Show HN: React Native AI – Full stack framework for building mobile AI apps https://bit.ly/3sWcjoB November 30, 2023 at 04:07AM

Show HN: Costnip – a peer-driven healthcare price transparency platform https://bit.ly/47RZ7Qh

Show HN: Costnip – a peer-driven healthcare price transparency platform Costnip is a peer-driven healthcare transparency platform that allows users to compare services based on price, proximity, and what others were charged. We use data to increase competition in healthcare services, empower value-based options and drive down costs via transparency. A founder going through cancer treatment was mistakenly charged $30 instead of the $2000 for a drug because the pharmacy mixed up his name with his father. Then wondered why we all don’t know the cost that other’s are paying, like every other industry outside healthcare. He worked on several other tech innovations through the years before bringing that knowledge to this problem. https://bit.ly/3QSix0w November 28, 2023 at 11:22PM

Show HN: NIMB IRC Matrix Bridge (NIMB) – A simple client that forwards messages https://bit.ly/3T6768j

Show HN: NIMB IRC Matrix Bridge (NIMB) – A simple client that forwards messages https://bit.ly/3RiEgQW November 28, 2023 at 11:43PM

Show HN: Historical Movie Map https://bit.ly/3GlcLQl

Show HN: Historical Movie Map Hi HN - I love movies, history, and code, so I decided to combine the three together. Enjoy! https://bit.ly/3T3unb8 https://bit.ly/3GlcNHX November 28, 2023 at 07:11PM

Show HN: SwaraNotebook – a notation editor for Indian classical music https://bit.ly/3sS0cZK

Show HN: SwaraNotebook – a notation editor for Indian classical music As an enthusiast of Indian classical music, I needed to write music notations in the traditional typeset format. When I didn't find any existing editors, I developed a Swara Notebook, a mobile focused web app to write North Indian Classical ( Hindustani ) music notations. The notes (called Sargam , similar to Solfege) can be written in English, Devnagri and Bangla scripts. The transcribed song can be played back in 6 different rhythmic cycles ( Taal ) to the accompaniment of the Tabla (a type of drum) or a metronome. Here's an example of a transcribed song https://bit.ly/47x5ucd... Since North Indian classical music is oriented around Ragas (similar to modes in western classical music), the keyboard adapts to the notes of a Raga , making it contextually easier to key in notes. A common question I get: can it handle microtones? I chose to not support microtones and other pitch ornamentation such as glissando (called Meend ) since a mobile interface is not the easiest place to add such details. I also find it a useful tool for ear training, by typing out notations to songs I know, and playing it back to know if I guessed the notes right. It is an open source project written in Clojure/script https://bit.ly/3uApZWL https://bit.ly/3RiMZ5D November 28, 2023 at 03:34AM

Show HN: Hacker News Submission Compiler https://bit.ly/47PmSIQ

Show HN: Hacker News Submission Compiler Hi! I'm excited to share a website I created that compiles the top 100 submissions on Hacker News on a daily basis. It's simple to use and supports arrow key navigation. Check it out and let me know what you think! https://bit.ly/47UFYx5 November 27, 2023 at 01:49PM

Show HN: Star Time Lapse Videos with a Raspberry Pi Camera and AllSky https://bit.ly/415dv5F

Show HN: Star Time Lapse Videos with a Raspberry Pi Camera and AllSky https://bit.ly/40Uyg41 November 28, 2023 at 12:01AM

Show HN:Draw Fast - Real-time AI image generation based on drawings in a canvas https://bit.ly/47uhlYA

Show HN:Draw Fast - Real-time AI image generation based on drawings in a canvas https://bit.ly/3N0wb0L November 27, 2023 at 07:55AM

Show HN: I built a domain name marketplace for folks (like me) who hoard domains https://bit.ly/489ta6v

Show HN: I built a domain name marketplace for folks (like me) who hoard domains Problem: I (accidentally) hoard domains :') 1. I get excited about a new project 2. I buy a domain 3. I get busy, and the domain collects a thick layer of dust I know I'm not alone in this, either So, I had the idea of creating a simple and casual marketplace for folks like me to list their domains at a fair price with a nice community feel to free up these caged domains It felt like a great project for me to pick up some new skills, so I got to it All up, it took me about a month, and I built the whole thing live on Twitch I've always sat on the design, marketing and front-end side of the fence, so this was my first attempt at making a 'full' web app Here's the stack I used: - SvelteKit ( https://bit.ly/47vJm1Q ) - Supabase ( https://bit.ly/3M1Bryh ) - Resend ( https://bit.ly/3EUFDOD ) - ShadCN Svelte ( https://bit.ly/47tkeZr ) It was super fun to build, and as a beginner, I learnt so much I leaned on AI quite heavily to help advance my speed of groking certain concepts within both SvelteKit & Supabase, and I blogged about the experience and my learnings here: https://bit.ly/3sQAR2e Any feedback/criticism very much welcome, I've got a lot to learn :) https://bit.ly/489tbr5 November 26, 2023 at 11:26PM

Show HN: I built a guided Build your own DNS Server challenge https://bit.ly/3SWERsE

Show HN: I built a guided Build your own DNS Server challenge Hey everyone. It's Sherub here, author of the Build your own DNS Server challenge on CodeCrafters. Currently it’s available in Rust, Go, and Python and is free while in beta. https://bit.ly/47xgQwE I've kept the challenge accessible but still challenging for an intermediate developer. This challenge, like others from CodeCrafters, is self-paced. You can use any tools you prefer (terminal, editor, etc.) to build the project. At the end of the challenge, you will have created a DNS forwarding server. The server can create and read DNS packets and respond to DNS queries. As you go, you'll learn about the DNS protocol, its format, servers, and A records. All while getting to hone your language skills. Some of the challenges and choices I had to make: * To make the stages easier, I had to break them up, such that each step builds on the previous one. This was especially challenging for the 2nd stage, where we write a DNS packet's header contents. Even though I’d have liked it to be easier, breaking it up further would have been weird. * Instead of implementing a recursive resolver, I've restricted to a forwarding server. We made this decision so that most developers can still use it. To add more complexity, we can use a challenge extension (noted below). * Deciding how much instruction and context the stages should provide. I’ve decided to keep them as thorough as possible for most of the stages. Developers can choose to have thorough details or just skim through them. I would love your feedback and questions on the challenge. You can try it out for free here: https://bit.ly/47xgQwE (no CC required). I also have challenge extensions planned. You can find them at https://bit.ly/47MTqDl... . I'm also keen to hear what you think about the extension ideas. https://bit.ly/40SIeD3 November 27, 2023 at 07:36AM

Show HN: Upcoming – Explore what's coming next https://bit.ly/3sQieLN

Show HN: Upcoming – Explore what's coming next Get a weekly preview of upcoming movies, TV shows, books, music, games, and events. Add them to your calendar and don't miss out on what's coming this week! https://bit.ly/3Gfvj4q November 27, 2023 at 04:09AM

Show HN: GitAware – A simple browser extension that helps you stay on top of MRs https://bit.ly/47Mjrmf

Show HN: GitAware – A simple browser extension that helps you stay on top of MRs https://bit.ly/46tRajf November 26, 2023 at 04:17PM

Show HN: LockDB now natively supports acting on multiple locks https://bit.ly/3MY5qty

Show HN: LockDB now natively supports acting on multiple locks LockDB is a cross-platform tool you can use to handle process/event locking and avoid race conditions. It is sometimes also known as a semaphore. There are packages for Node.js / Browser / Bun / NPM, Deno, and you can also use it as a CLI. The new LockDB release supports a feature request common for complex locking necessities: The ability to lock, unlock, and check multiple locks. I understand new features aren't _generally_ accepted [1] here, but this one seemed "juicy" enough for it. Feel free to remove the post if I'm wrong, and I apologize in that case! [1]: https://bit.ly/3uv7hQm https://bit.ly/3T5qyls November 26, 2023 at 09:42AM

Show HN: An open-source notification infrastructure https://bit.ly/3uxQVqe

Show HN: An open-source notification infrastructure https://bit.ly/3Rfn1jf November 26, 2023 at 06:58AM

Show HN: pytunes – Free and open-source music streaming service https://bit.ly/46vAwQg

Show HN: pytunes – Free and open-source music streaming service https://bit.ly/46vAxDO November 25, 2023 at 11:50PM

Show HN: I created an indie Product Hunt alternative https://bit.ly/3utYga9

Show HN: I created an indie Product Hunt alternative https://bit.ly/49Vbe0Q November 25, 2023 at 11:15AM