wasgen
vst-rs
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wasgen
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Web FM synthesizer made with HTML5
Very neat, though I got prominent clicks and artifacts in both chrome and firefox.
If anyone's interested, some years ago I made a wrapper library for things like this, to wallpaper over the famously hairy WebAudio synthesis API. Basically you pass in a static object describing the audio graph and parameters you want, and the lib creates the WebAudio nodes and then cleans them up after the sound releases.
https://github.com/fenomas/wasgen
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Elementary Audio: a modern platform for writing high performance audio software
I work on this space a lot, and maintain a couple of libraries you might be interested in. They are very much focused on light quick "good enough" web audio music/sound effects.
https://github.com/fenomas/wasgen - a declarative abstraction layer around web audio oscillators and filters
https://fenomas.github.io/wafxr/ - a GUI front-end demo for the previous
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Octave Compass
You might try wasgen, which I maintain. Basically you pass it an object that describes your audio graph, and a frequency/duration/volume, and it creates/disposes all the audio nodes.
https://github.com/andyhall/wasgen
Making the sound program objects isn't trivial if you're unfamiliar with low-level audio, but the live demo has examples for all MIDI instruments: https://andyhall.github.io/wasgen/
vst-rs
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What would you rewrite in Rust?
https://github.com/RustAudio/vst-rs this what you mean?
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How do you go about making VSTs?
I hate to "uhhmm ackchyually" this, but unless you need native VST3 support* (which uses the C++ ABI directly) other options are available, a favourite of mine would be Rust!
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OctaSine v0.7.0 released (free and open source FM synth VST plugin for macOS/Windows/Linux) with major improvements
VST2 bindings exist (https://github.com/RustAudio/vst-rs) but the VST3 and AU situation is rougher around the edges. There is work being done on abstracting over different plugin standards and easing parameter handling, notably https://github.com/wrl/baseplug and https://github.com/robbert-vdh/nih-plug, but nothing completely stable yet.
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Announcing Audio Limiter: automatically lower the volume of loud sounds on your computer in real-time
One limitation that they mention is "Only one GFX and one LFX APO can be registered for an output device and only one LFX APO can be registered for an input device." which could be a problem for people who are already using one like Equalizer APO. What you could do is make a VST version of your limiter using vst-rs and use Equalizer APO to handle the APO part.
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Elementary Audio: a modern platform for writing high performance audio software
I agree with the first half. For the second half, I think for beginners, the examples are very important. From this perspective, many Rust projects comes with examples:
https://github.com/RustAudio/vst-rs
Once following the readme, it is very easy to get it work in your own machine. Then beginners can edit things while learning new stuffs with books or online resources.
Rust audio has also got a very helpful Discord community where beginners can always ask questions.
For the GUI part, I am not an expert, but there are more and more Rust GUI libraries (egui, iced, druid, rui): among them, egui-rs and iced-rs can all be used for VST. Still, there are some examples to get started with.
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Show HN: Glicol(Graph-Oriented Live Coding Language) and DSP Lib Written in Rust
https://youtu.be/yFKH9ou_XyQ
If you want your own vst (with your name on the author and you can sell),you can start with vst-rs:
https://github.com/RustAudio/vst-rs
Wanna some GUI, here is a template:
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OctaSine, a FM-based VST2 synthesizer written in Rust
When I came across the vst-rs, I realised that I could try out writing an audio plugin. Since I was already familiar with FM synthesis from Elektron Monomachine and FM8, I decided to go with it. It has worked out pretty well.
What are some alternatives?
beepbox - An online tool for sketching and sharing instrumental melodies.
glicol - Graph-oriented live coding language and music/audio DSP library written in Rust
elementary - A JavaScript runtime for writing native audio applications, as well as a library and framework for composing audio signal processes.
adsb_deku - ✈️ Rust ADS-B decoder + tui radar application
vst3sdk - VST 3 Plug-In SDK
faust - Functional programming language for signal processing and sound synthesis
fundsp - Library for audio processing and synthesis
vst3-sys - Raw Bindings to the VST3 API
react-juce - Write cross-platform native apps with React.js and JUCE
OpenAudio - A list of open source VST/audio plugin projects. Please contribute more links or open source your own plugins.
octave-compass - A tool for exploring musical scales and chords
duplicate - Easy code duplicate with substitution for Rust