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Show HN: Cloning a musical instrument from 16 seconds of audio

In 2020, Magenta released DDSP [1], a machine learning algorithm / python library which made it possible to generate good sounding instrument synthesizers from about 6-10 minutes of data. While working with DDSP for a project, we realised how it was actually quite hard to find 6-10 minute of clean recordings of monophonic instruments.<p>In this project, we have combined the DDSP architecture with a domain adaptation technique from speech synthesis [2]. This domain adaptation technique works by pre-training our model on many different recordings from the Solos dataset [3] first and then fine-tuning parts of the model to the new recording. This allows us to produce decent sounding instrument synthesisers from as little as 16 seconds of target audio instead of 6-10 minutes.<p>[1] <a href="https://arxiv.org/abs/2001.04643" rel="nofollow">https://arxiv.org/abs/2001.04643</a><p>[2] <a href="https://arxiv.org/abs/1802.06006" rel="nofollow">https://arxiv.org/abs/1802.06006</a><p>[3] <a href="https://arxiv.org/abs/2006.07931" rel="nofollow">https://arxiv.org/abs/2006.07931</a><p>We hope to publish a paper on the topic soon.

Show HN: Cloning a musical instrument from 16 seconds of audio

In 2020, Magenta released DDSP [1], a machine learning algorithm / python library which made it possible to generate good sounding instrument synthesizers from about 6-10 minutes of data. While working with DDSP for a project, we realised how it was actually quite hard to find 6-10 minute of clean recordings of monophonic instruments.<p>In this project, we have combined the DDSP architecture with a domain adaptation technique from speech synthesis [2]. This domain adaptation technique works by pre-training our model on many different recordings from the Solos dataset [3] first and then fine-tuning parts of the model to the new recording. This allows us to produce decent sounding instrument synthesisers from as little as 16 seconds of target audio instead of 6-10 minutes.<p>[1] <a href="https://arxiv.org/abs/2001.04643" rel="nofollow">https://arxiv.org/abs/2001.04643</a><p>[2] <a href="https://arxiv.org/abs/1802.06006" rel="nofollow">https://arxiv.org/abs/1802.06006</a><p>[3] <a href="https://arxiv.org/abs/2006.07931" rel="nofollow">https://arxiv.org/abs/2006.07931</a><p>We hope to publish a paper on the topic soon.

Show HN: Cloning a musical instrument from 16 seconds of audio

In 2020, Magenta released DDSP [1], a machine learning algorithm / python library which made it possible to generate good sounding instrument synthesizers from about 6-10 minutes of data. While working with DDSP for a project, we realised how it was actually quite hard to find 6-10 minute of clean recordings of monophonic instruments.<p>In this project, we have combined the DDSP architecture with a domain adaptation technique from speech synthesis [2]. This domain adaptation technique works by pre-training our model on many different recordings from the Solos dataset [3] first and then fine-tuning parts of the model to the new recording. This allows us to produce decent sounding instrument synthesisers from as little as 16 seconds of target audio instead of 6-10 minutes.<p>[1] <a href="https://arxiv.org/abs/2001.04643" rel="nofollow">https://arxiv.org/abs/2001.04643</a><p>[2] <a href="https://arxiv.org/abs/1802.06006" rel="nofollow">https://arxiv.org/abs/1802.06006</a><p>[3] <a href="https://arxiv.org/abs/2006.07931" rel="nofollow">https://arxiv.org/abs/2006.07931</a><p>We hope to publish a paper on the topic soon.

Show HN: Programming Time - Playing card game to teach your kids Python

Show HN: Programming Time - Playing card game to teach your kids Python

Show HN: Goopt – Search Engine for a Procedural Simulation of the Web with GPT-3

Show HN: Goopt – Search Engine for a Procedural Simulation of the Web with GPT-3

Show HN: Supernotes 2 – a fast, Markdown notes app for journalling and sharing

Hi HN – we first launched Supernotes[1] to HN in April 2020, and since then Tobias and I (it's just the two of us) have put in the work to make what we hope is an amazing note-taking app. Although the note-taking / personal knowledge management landscape is <i>incredibly</i> competitive at the moment (with lots of great apps adding great new features every day), we think that with the newly released Supernotes 2 we're keeping pace and delivering a unique and satisfying knowledge management experience.<p>Here's the combination of features that make us stand out:<p>- a powerful markdown-based notecard system that is simple/beautiful but also super flexible<p>- a WYSIWYM[2] editor that keeps markdown marks for explicitness while still giving you a preview of what the content looks like when rendered<p>- eschewing a folder system in favor of multi-parent nested hierarchies<p>- unique collaboration system that is optimized for granular sharing between individuals rather than "all-in" sharing amongst teams or specific groups<p>- notes that can be linked both with inline bidirectional links or the aforementioned hierarchies, allowing you to build (and <i>experience</i> with our 2D and 3D graph views) a robust graph of your knowledge<p>There are of course tons of other cool features that are included as well, but those are the highlights. If any of that sounds interesting to you, you can sign up here[3] – we would love to hear any feedback you might have!<p>[1] <a href="https://supernotes.app/?ref=hn" rel="nofollow">https://supernotes.app/?ref=hn</a><p>[2] <a href="https://en.wikipedia.org/wiki/WYSIWYM" rel="nofollow">https://en.wikipedia.org/wiki/WYSIWYM</a><p>[3] <a href="https://my.supernotes.app/entry?signup=1&ref=hn" rel="nofollow">https://my.supernotes.app/entry?signup=1&ref=hn</a>

Show HN: Supernotes 2 – a fast, Markdown notes app for journalling and sharing

Hi HN – we first launched Supernotes[1] to HN in April 2020, and since then Tobias and I (it's just the two of us) have put in the work to make what we hope is an amazing note-taking app. Although the note-taking / personal knowledge management landscape is <i>incredibly</i> competitive at the moment (with lots of great apps adding great new features every day), we think that with the newly released Supernotes 2 we're keeping pace and delivering a unique and satisfying knowledge management experience.<p>Here's the combination of features that make us stand out:<p>- a powerful markdown-based notecard system that is simple/beautiful but also super flexible<p>- a WYSIWYM[2] editor that keeps markdown marks for explicitness while still giving you a preview of what the content looks like when rendered<p>- eschewing a folder system in favor of multi-parent nested hierarchies<p>- unique collaboration system that is optimized for granular sharing between individuals rather than "all-in" sharing amongst teams or specific groups<p>- notes that can be linked both with inline bidirectional links or the aforementioned hierarchies, allowing you to build (and <i>experience</i> with our 2D and 3D graph views) a robust graph of your knowledge<p>There are of course tons of other cool features that are included as well, but those are the highlights. If any of that sounds interesting to you, you can sign up here[3] – we would love to hear any feedback you might have!<p>[1] <a href="https://supernotes.app/?ref=hn" rel="nofollow">https://supernotes.app/?ref=hn</a><p>[2] <a href="https://en.wikipedia.org/wiki/WYSIWYM" rel="nofollow">https://en.wikipedia.org/wiki/WYSIWYM</a><p>[3] <a href="https://my.supernotes.app/entry?signup=1&ref=hn" rel="nofollow">https://my.supernotes.app/entry?signup=1&ref=hn</a>

Show HN: I Designed and Built an eBike

This post shows and explains the design of the eBike I built myself. I decided to post it on this specific forum because this is where it all started, by stumbling on another post, as mentioned in my entry.

Show HN: I Designed and Built an eBike

This post shows and explains the design of the eBike I built myself. I decided to post it on this specific forum because this is where it all started, by stumbling on another post, as mentioned in my entry.

Show HN: Simula One – Portable Linux VR Computer

Hi HN, My name is George, and I am helping build an office focused VR headset called the “Simula One”. It was discussed recently here: <a href="https://news.ycombinator.com/item?id=28695455" rel="nofollow">https://news.ycombinator.com/item?id=28695455</a>. We have just opened our store for preorders (<a href="https://shop.simulavr.com" rel="nofollow">https://shop.simulavr.com</a>), so that we and our backers can help people replace their old PCs/laptops with more capable VR headsets.<p>We call our headset a “VR Computer” (or a “VRC”) to distinguish it from gaming headsets. When Simula was founded, most people thought the future of VR was in games & entertainment. The truth is that VR offers a superior way for performing knowledge work, but until now there haven’t been dedicated VR computing devices available on the market. While existing headsets are optimized for gaming, ours is optimized for productivity: it features bleeding edge high-resolution displays, has a detachable compute pack with specs comparable to a premium office laptop (x86 architecture), and runs a VR specialized Linux distro optimized for clear text.<p>VRCs offer several advantages over Laptops & PCs: they provide unlimited screens of any size, improve work focus & immersion, are usable outdoors (no laptop glare), improve privacy (no one around you can snoop your screen), and their compact design frees up desk space. They also promote better posture and freedom of movement: with a VR computer you can change positions, sit up, lean back, stand, lie down, or even walk while you compute.<p>Our project started out as an open-source VR window manager (<a href="https://github.com/SimulaVR/Simula" rel="nofollow">https://github.com/SimulaVR/Simula</a>), which you can try out today on the Valve Index or HTC Vive. It's built over Drew Devault's wlroots and the Godot game engine. Once our compositor became relatively stable, we ran into the issue of “no other manufacturer wanted to offer us Linux support” (thinking there was no market for something so niche, I imagine?). So we decided to build our own =] We are happy to answer any question (technical or otherwise) about our project.

Show HN: Simula One – Portable Linux VR Computer

Hi HN, My name is George, and I am helping build an office focused VR headset called the “Simula One”. It was discussed recently here: <a href="https://news.ycombinator.com/item?id=28695455" rel="nofollow">https://news.ycombinator.com/item?id=28695455</a>. We have just opened our store for preorders (<a href="https://shop.simulavr.com" rel="nofollow">https://shop.simulavr.com</a>), so that we and our backers can help people replace their old PCs/laptops with more capable VR headsets.<p>We call our headset a “VR Computer” (or a “VRC”) to distinguish it from gaming headsets. When Simula was founded, most people thought the future of VR was in games & entertainment. The truth is that VR offers a superior way for performing knowledge work, but until now there haven’t been dedicated VR computing devices available on the market. While existing headsets are optimized for gaming, ours is optimized for productivity: it features bleeding edge high-resolution displays, has a detachable compute pack with specs comparable to a premium office laptop (x86 architecture), and runs a VR specialized Linux distro optimized for clear text.<p>VRCs offer several advantages over Laptops & PCs: they provide unlimited screens of any size, improve work focus & immersion, are usable outdoors (no laptop glare), improve privacy (no one around you can snoop your screen), and their compact design frees up desk space. They also promote better posture and freedom of movement: with a VR computer you can change positions, sit up, lean back, stand, lie down, or even walk while you compute.<p>Our project started out as an open-source VR window manager (<a href="https://github.com/SimulaVR/Simula" rel="nofollow">https://github.com/SimulaVR/Simula</a>), which you can try out today on the Valve Index or HTC Vive. It's built over Drew Devault's wlroots and the Godot game engine. Once our compositor became relatively stable, we ran into the issue of “no other manufacturer wanted to offer us Linux support” (thinking there was no market for something so niche, I imagine?). So we decided to build our own =] We are happy to answer any question (technical or otherwise) about our project.

Show HN: The Brutalist Report – A rolling snapshot of the day’s headlines

Hi HN. I was inspired by so many other folks also longing for a return to the old web that I put together a service to scratch my own itch: An extremely fast headline aggregator done in 1990s style HTML.<p>Sharing it with you all for those of you that also would enjoy this now esoteric style.

Show HN: The Brutalist Report – A rolling snapshot of the day’s headlines

Hi HN. I was inspired by so many other folks also longing for a return to the old web that I put together a service to scratch my own itch: An extremely fast headline aggregator done in 1990s style HTML.<p>Sharing it with you all for those of you that also would enjoy this now esoteric style.

Show HN: Google Drive to SQLite

Here's the repo: <a href="https://github.com/simonw/google-drive-to-sqlite" rel="nofollow">https://github.com/simonw/google-drive-to-sqlite</a><p>The README is using a trick I'm increasingly leaning on: parts of that document - the --help output and the example database schema - are automatically generated using Cog: <a href="https://nedbatchelder.com/code/cog" rel="nofollow">https://nedbatchelder.com/code/cog</a> and <a href="https://til.simonwillison.net/python/cog-to-update-help-in-readme" rel="nofollow">https://til.simonwillison.net/python/cog-to-update-help-in-r...</a>

Show HN: Google Drive to SQLite

Here's the repo: <a href="https://github.com/simonw/google-drive-to-sqlite" rel="nofollow">https://github.com/simonw/google-drive-to-sqlite</a><p>The README is using a trick I'm increasingly leaning on: parts of that document - the --help output and the example database schema - are automatically generated using Cog: <a href="https://nedbatchelder.com/code/cog" rel="nofollow">https://nedbatchelder.com/code/cog</a> and <a href="https://til.simonwillison.net/python/cog-to-update-help-in-readme" rel="nofollow">https://til.simonwillison.net/python/cog-to-update-help-in-r...</a>

Show HN: Test your shape rotation skills

Hi all, hope someone enjoys (or not) my weekend project. See how many matching pairs you can find in two minutes.<p>This is written in C++ and built to WebAssembly with Emscripten. The code is at <a href="https://github.com/0xf00ff00f/rotator" rel="nofollow">https://github.com/0xf00ff00f/rotator</a>

Show HN: Test your shape rotation skills

Hi all, hope someone enjoys (or not) my weekend project. See how many matching pairs you can find in two minutes.<p>This is written in C++ and built to WebAssembly with Emscripten. The code is at <a href="https://github.com/0xf00ff00f/rotator" rel="nofollow">https://github.com/0xf00ff00f/rotator</a>

Show HN: Test your shape rotation skills

Hi all, hope someone enjoys (or not) my weekend project. See how many matching pairs you can find in two minutes.<p>This is written in C++ and built to WebAssembly with Emscripten. The code is at <a href="https://github.com/0xf00ff00f/rotator" rel="nofollow">https://github.com/0xf00ff00f/rotator</a>