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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: Snipd – AI podcast player to highlight and take notes with transcripts
Show HN: Snipd – AI podcast player to highlight and take notes with transcripts
Show HN: Snipd – AI podcast player to highlight and take notes with transcripts
Show HN: Snipd – AI podcast player to highlight and take notes with transcripts
Show HN: Hathora – Multiplayer Game Development Made Easy
Hi HN, this is Harsh, I am the developer behind Hathora. I tried making a simple multiplayer game a few years ago and, as someone with software engineering experience but no gamedev experience, I found it to be very challenging. On top of the challenges of building a single player game, you now have to constantly battle the network and latency, find ways to prevent cheating, and figure out how to make a scalable backend architecture. With Hathora my goal was to encode best practices for online multiplayer game development into a framework so developers can simply focus on implementing their game logic.<p>Some technical pieces of Hathora I wanted to highlight:<p>- Hathora includes a system I think of as “gRPC for games”. You define your API in Hathora’s declarative format and the framework spits out typesafe data models, clients, and server endpoint stubs across multiple programming languages (although currently only Typescript is implemented). Minimal packet sizes are achieved through a binary serialization format which includes a delta encoding feature, allowing the framework to efficiently synchronize state by sending data diffs.<p>- Hathora includes a Swagger-like Prototype UI generated from the API definition. This allows you to view the game state and call server methods all in realtime, letting you interact with your backend logic without writing a single line of frontend code. Once you are happy with the backend logic, you can create a fully custom frontend using any framework/technology you’d like and just use the Hathora client to communicate with the backend.<p>- By handling generic game functionality (state synchronization, messaging, persistence, etc) for you, Hathora lets you create multiplayer games with very few lines of code. For example, see chess which is implemented in under 200 lines of user code: <a href="https://github.com/hathora/hathora/tree/develop/examples/chess" rel="nofollow">https://github.com/hathora/hathora/tree/develop/examples/che...</a>. I also made (a massively simplified version of) Among Us in under 200 lines of code: <a href="https://github.com/hathora/among-us-tutorial" rel="nofollow">https://github.com/hathora/among-us-tutorial</a><p>I am looking for developers interested in making online multiplayer games to try out Hathora and give me feedback. Additionally, if the roadmap seems interesting to you I would gladly welcome contributions: <a href="https://docs.hathora.dev/#/roadmap" rel="nofollow">https://docs.hathora.dev/#/roadmap</a>. I’ll be around to answer questions, let me know what you think!
Show HN: Hathora – Multiplayer Game Development Made Easy
Hi HN, this is Harsh, I am the developer behind Hathora. I tried making a simple multiplayer game a few years ago and, as someone with software engineering experience but no gamedev experience, I found it to be very challenging. On top of the challenges of building a single player game, you now have to constantly battle the network and latency, find ways to prevent cheating, and figure out how to make a scalable backend architecture. With Hathora my goal was to encode best practices for online multiplayer game development into a framework so developers can simply focus on implementing their game logic.<p>Some technical pieces of Hathora I wanted to highlight:<p>- Hathora includes a system I think of as “gRPC for games”. You define your API in Hathora’s declarative format and the framework spits out typesafe data models, clients, and server endpoint stubs across multiple programming languages (although currently only Typescript is implemented). Minimal packet sizes are achieved through a binary serialization format which includes a delta encoding feature, allowing the framework to efficiently synchronize state by sending data diffs.<p>- Hathora includes a Swagger-like Prototype UI generated from the API definition. This allows you to view the game state and call server methods all in realtime, letting you interact with your backend logic without writing a single line of frontend code. Once you are happy with the backend logic, you can create a fully custom frontend using any framework/technology you’d like and just use the Hathora client to communicate with the backend.<p>- By handling generic game functionality (state synchronization, messaging, persistence, etc) for you, Hathora lets you create multiplayer games with very few lines of code. For example, see chess which is implemented in under 200 lines of user code: <a href="https://github.com/hathora/hathora/tree/develop/examples/chess" rel="nofollow">https://github.com/hathora/hathora/tree/develop/examples/che...</a>. I also made (a massively simplified version of) Among Us in under 200 lines of code: <a href="https://github.com/hathora/among-us-tutorial" rel="nofollow">https://github.com/hathora/among-us-tutorial</a><p>I am looking for developers interested in making online multiplayer games to try out Hathora and give me feedback. Additionally, if the roadmap seems interesting to you I would gladly welcome contributions: <a href="https://docs.hathora.dev/#/roadmap" rel="nofollow">https://docs.hathora.dev/#/roadmap</a>. I’ll be around to answer questions, let me know what you think!
Show HN: Elestio – Managed platform for over 150 open-source software stacks
Hello Hacker News! We're Joseph, Kieran and David from elestio (<a href="https://elest.io/" rel="nofollow">https://elest.io/</a>).
We've built a platform that offers open-source software as a managed service - we take care of the OS and app updates, security, SSL, networking, backups, the whole deal.<p>In 2009, we started deploying open-source software for websites and web apps we built, many for SMB and enterprise customers. Our process was basically: spin up VM's from a hosting provider, install the software we needed, then update it manually / when it was needed / critical, etc.<p>Once we hit > 100 servers/services needing updates, backups, capacity monitoring and alerting, etc. we saw that it was getting totally unmanageable… so we built what would eventually become elestio.<p>We've put a lot, a lot, a lot of work into building something that allows us (and now you) to deploy a new service in just a few minutes, with zero ongoing maintenance / devops overhead. We basically turned open-source software into a SaaS experience.<p>We update all the apps, respecting SemVer on the branch you select, issue and renew SSL certs automatically (even for your own domains, for free), automatically implement a 3-2-1 backup strategy, caching is handled and we put your service behind a configurable firewall and rate limiter with sane defaults. We have implemented Nebula to connect your services hosted in different datacenters across regions and providers as if they were on the same network and Borg backups to do deduplicated incremental backups in a remote datacenter.<p>There were many challenges in building it… VM providers don't have homogenous or feature-complete APIs for provisioning servers, we tested 6 different mesh networking/VPN solutions to enable services running in different datacenters, regions, or providers to connect to each other securely, and we did a lot of work to create a sane templating system that covers setup, security, backups, upgrade, migrations and monitoring, lots of work to test the safest ways to update OS and apps without breaking things… but we got there and it works really well (we think)! Deployments are based on Docker, which helped a lot to standardize everything.<p>We've been using it to deploy and maintain over 12,000 services for our own enterprise clients and we've spent the last year making it user-friendly (and even more bulletproof for end-user configs). Elestio can currently deploy any one of over 150 open-source software stacks like Postgres, MySQL, OpenSearch, Redis, Wordpress, NodeBB, Jitsi, Uptime-kuma, Plausible, GitLab,, Strapi, Ghost, or even PowerDns, Grafana, ClickHouse, etc. in about 3 minutes, flat.<p>We currently support AWS Lightsail, Linode, Hetzner, Vultr and Digital Ocean, and BringYourOwnVM, if you want to run on your own provider account or even on-premise but have all the features of managed services. We are offering 1 BYOVM service per customer for free forever.<p>Something we really wanted to do was make sure we were part of a healthy open-source ecosystem. To that end, elestio will donate part of all revenue to the open-source projects our customers are using. We will review this annually and if it's possible to increase it, we will. This is a win-win-win to us. Open-source developers and communities get more resources to improve their software while our customers, our staff and other stakeholders know that they are helping to support the open-source community.<p>For this launch we made a partnership with DigitalOcean, they are offering $250 of free credits on Elestio if you go through this link: <a href="https://try.digitalocean.com/elestio/" rel="nofollow">https://try.digitalocean.com/elestio/</a><p>Alternatively you can also register here and get $20 of free credits but not limited to DO infrastructure: <a href="https://dash.elest.io/signup" rel="nofollow">https://dash.elest.io/signup</a><p>All your questions and comments are welcome and if you want to share any devops horror stories, please do! We're giving out free credits for the best ones!!<p>Joseph, Kieran and David
Show HN: Elestio – Managed platform for over 150 open-source software stacks
Hello Hacker News! We're Joseph, Kieran and David from elestio (<a href="https://elest.io/" rel="nofollow">https://elest.io/</a>).
We've built a platform that offers open-source software as a managed service - we take care of the OS and app updates, security, SSL, networking, backups, the whole deal.<p>In 2009, we started deploying open-source software for websites and web apps we built, many for SMB and enterprise customers. Our process was basically: spin up VM's from a hosting provider, install the software we needed, then update it manually / when it was needed / critical, etc.<p>Once we hit > 100 servers/services needing updates, backups, capacity monitoring and alerting, etc. we saw that it was getting totally unmanageable… so we built what would eventually become elestio.<p>We've put a lot, a lot, a lot of work into building something that allows us (and now you) to deploy a new service in just a few minutes, with zero ongoing maintenance / devops overhead. We basically turned open-source software into a SaaS experience.<p>We update all the apps, respecting SemVer on the branch you select, issue and renew SSL certs automatically (even for your own domains, for free), automatically implement a 3-2-1 backup strategy, caching is handled and we put your service behind a configurable firewall and rate limiter with sane defaults. We have implemented Nebula to connect your services hosted in different datacenters across regions and providers as if they were on the same network and Borg backups to do deduplicated incremental backups in a remote datacenter.<p>There were many challenges in building it… VM providers don't have homogenous or feature-complete APIs for provisioning servers, we tested 6 different mesh networking/VPN solutions to enable services running in different datacenters, regions, or providers to connect to each other securely, and we did a lot of work to create a sane templating system that covers setup, security, backups, upgrade, migrations and monitoring, lots of work to test the safest ways to update OS and apps without breaking things… but we got there and it works really well (we think)! Deployments are based on Docker, which helped a lot to standardize everything.<p>We've been using it to deploy and maintain over 12,000 services for our own enterprise clients and we've spent the last year making it user-friendly (and even more bulletproof for end-user configs). Elestio can currently deploy any one of over 150 open-source software stacks like Postgres, MySQL, OpenSearch, Redis, Wordpress, NodeBB, Jitsi, Uptime-kuma, Plausible, GitLab,, Strapi, Ghost, or even PowerDns, Grafana, ClickHouse, etc. in about 3 minutes, flat.<p>We currently support AWS Lightsail, Linode, Hetzner, Vultr and Digital Ocean, and BringYourOwnVM, if you want to run on your own provider account or even on-premise but have all the features of managed services. We are offering 1 BYOVM service per customer for free forever.<p>Something we really wanted to do was make sure we were part of a healthy open-source ecosystem. To that end, elestio will donate part of all revenue to the open-source projects our customers are using. We will review this annually and if it's possible to increase it, we will. This is a win-win-win to us. Open-source developers and communities get more resources to improve their software while our customers, our staff and other stakeholders know that they are helping to support the open-source community.<p>For this launch we made a partnership with DigitalOcean, they are offering $250 of free credits on Elestio if you go through this link: <a href="https://try.digitalocean.com/elestio/" rel="nofollow">https://try.digitalocean.com/elestio/</a><p>Alternatively you can also register here and get $20 of free credits but not limited to DO infrastructure: <a href="https://dash.elest.io/signup" rel="nofollow">https://dash.elest.io/signup</a><p>All your questions and comments are welcome and if you want to share any devops horror stories, please do! We're giving out free credits for the best ones!!<p>Joseph, Kieran and David
Show HN: Supershields.io – smart, Lua-powered SVG status badges
Show HN: Supershields.io – smart, Lua-powered SVG status badges
Show HN: Supershields.io – smart, Lua-powered SVG status badges
Show HN: Supershields.io – smart, Lua-powered SVG status badges
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: Programming Time - Playing card game to teach your kids Python
Show HN: Programming Time - Playing card game to teach your kids Python
Show HN: I made an iOS app recording RGBD videos and a web app playing them