DSP in Rust
A list of resources related to (audio) DSP.
Are We Audio Yet?
Rust commonly has these "Are We Something Yet?" websites. This is the one for audio. https://wiki.mozilla.org/Areweyet
Contains links of projects related to rust and audio.
Github:
https://github.com/rustaudio/areweaudioyet/* HexoDSP (WeirdConstructor)
WeirdConstructor has been building a modular
synthesizer in Rust centered around a hexagonal
grid. This I believe is the underlying DSP library
used, called HexoDSP
At this point there seems to be several nodes implemented:
https://github.com/WeirdConstructor/HexoDSP
On initial glance, this codebase looks very "rusty" to me, so it's hard to for me to grok currently. It seems that the graph interface and the DSP algorithms are melted together, which obfuscates things.
freeverb-rs (Ian Hobson)
Ian Hobson ported a version of freeverb to Rust:
https://github.com/irh/freeverb-rs
I mainly spent time looking at the core freeverb implementation, which was just the DSP code with a tick function. Similar to soundpipe/sndkit.
This bit of code was reasonably straight-forward to read, and looked similar to what would happen in equivalent C++ code.
A few noteworthy things here: the code makes use of vectors instead of arrays. There may be some performance issues here. It may also be possible that this is allocated onto the stack rather than the heap, which can eventually be problematic.
Daisy BSP
This shows examples of Rust being run on the Daisy Board, with some DSP code as well:
https://github.com/antoinevg/daisy_bsp
It seems the only thing implemented at the moment is a table lookup oscillator.
Synthesizer-io (Ralph Linus)
https://github.com/raphlinus/synthesizer-io
https://raphlinus.github.io/synthesizer/2018/09/19/synth-update.html
Seems to be an abandoned project for the most part?
Heap allocation via Box
By default, Rust allocates things onto the stack, rather than the Heap. This is a problem for DSP algorithms, especially ones that require large buffers.
Heap allocation can be done usine Box:
https://doc.rust-lang.org/rust-by-example/std/box.html* DASP https://github.com/RustAudio/dasp
AKA Digital Audio Signal Processing in rust. Provides some primitives.
DSP-chain
https://github.com/RustAudio/dsp-chain
Rust library for chaining together DSP primitives.
Glicol
Graph-oriented live coding language and audio DSP library written in Rust.
https://github.com/chaosprint/glicol
Mostly seems to be oriented towards DSP routing syntax. Seems to have a synthesizer with oscillators, filters, envelopes, etc.
RustyDAW, MeadowLark
An attempt to build a DAW in Rust. So far, there seems to be a lot of planning, very little execution.
https://github.com/MeadowlarkDAW/Meadowlark.
m-hilgendorf
Don't have a lot of time to explore this further atm, but this person seems to have a few things including a generica audio DSP library, a compressor, and a VST host:
https://github.com/m-hilgendorf
https://github.com/m-hilgendorf/audio-graph
https://github.com/m-hilgendorf/rusty-compressor
https://github.com/m-hilgendorf/simple-eq* typebeat A little synthesizer designed to work in a browser.
The effects used are FAUST generated rust code.