OctaSine, a FM-based VST2 synthesizer written in Rust

• OctaSine

  20 582 8.2 Rust

  Frequency modulation synthesizer plugin (VST2, CLAP). Runs on macOS, Windows and Linux.

OctaSine is a frequency modulation based VST2 synthesizer plugin that I’ve been developing over the last couple of years. It has now reached a somewhat stable state, so I wanted to share it here. The typical way of using it would be to load it in your DAW of choice (Ableton Live, REAPER et cetera).

• iced

  165 22,767 9.9 Rust

  A cross-platform GUI library for Rust, inspired by Elm

  

GUI with iced

• WorkOS

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• vst-rs

  7 1,033 1.7 Rust

  Discontinued VST 2.4 API implementation in rust. Create plugins or hosts. Previously rust-vst on the RustDSP group.

  

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.

• packed_simd

  4 575 6.7 Rust

  Portable Packed SIMD Vectors for Rust standard library

  

At some point, I decided that I wanted to accelerate the synthesis with SIMD. I started out with using packed_simd, but switched to simdeez to abstract over vector widths and enable runtime detection. However, I wanted more flexibility and the option of splitting SIMD code into multiple functions. My solution was to skip frameworks and instead use custom traits and the duplicate crate to abstract over Rust simd instrinsics for different instruction sets. I use sleef for fast sines.

• simdeez

  3 329 5.4 Rust

  easy simd

At some point, I decided that I wanted to accelerate the synthesis with SIMD. I started out with using packed_simd, but switched to simdeez to abstract over vector widths and enable runtime detection. However, I wanted more flexibility and the option of splitting SIMD code into multiple functions. My solution was to skip frameworks and instead use custom traits and the duplicate crate to abstract over Rust simd instrinsics for different instruction sets. I use sleef for fast sines.

• duplicate

  4 221 3.4 Rust

  Easy code duplicate with substitution for Rust

At some point, I decided that I wanted to accelerate the synthesis with SIMD. I started out with using packed_simd, but switched to simdeez to abstract over vector widths and enable runtime detection. However, I wanted more flexibility and the option of splitting SIMD code into multiple functions. My solution was to skip frameworks and instead use custom traits and the duplicate crate to abstract over Rust simd instrinsics for different instruction sets. I use sleef for fast sines.

• sleef-sys

  1 2 0.0 Rust

  Rust binding for SLEEF: SIMD Library for Evaluating Elementary Functions

At some point, I decided that I wanted to accelerate the synthesis with SIMD. I started out with using packed_simd, but switched to simdeez to abstract over vector widths and enable runtime detection. However, I wanted more flexibility and the option of splitting SIMD code into multiple functions. My solution was to skip frameworks and instead use custom traits and the duplicate crate to abstract over Rust simd instrinsics for different instruction sets. I use sleef for fast sines.

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• baseview

  4 231 7.1 Rust

  low-level window system interface for audio plugin UIs

  

I eventually decided that I wanted a GUI. The Rust GUI situation is not very mature and special considerations required for vst plugin windows complicate the situation further. I discovered baseview at some point. With the mentoring of wrl and others, I was able to contribute code to get it working on macOS.

• iced_baseview

  3 31 6.8 Rust

  A baseview backend for the Iced GUI library

I went with iced for the GUI, using the excellent iced_baseview. Iced has been a pretty good experience so far, but the high resource consumption due to how GPU calls are (not) batched is a pain point. If I started over, I might consider other options such as egui.

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