synfx-dsp

synfx-dsp DSP real time audio synthesis, effect algorithms and utilities for Rust

Most of the algorithms and implementations in this library have been implemented for HexoDSP and used in HexoSynth. I factored them out, because they seem useful in other contexts too, for instance the synfx-dsp-jit crate.

I collected most of the algorithms in this crate from various GPLv3 compatible sources. They also were partially translated from multiple different C++ projects. I tried to document the source and source license diligently in the comments of this crate. I apologize if any attribution is missing and would welcome patches or reports.

Feel free to use these algorithms and utilities. Help, patches and additions are appreciated if they comply with the GPL-3.0-or-later license and don't break the test suite in HexoDSP.

Attention: HexoDSP comes with a large test suite that also covers these algorithms. And that is the one that also has to pass if these algorithms are touched. The flip side is, that these implementations are actually covered by a test suite.

License: GPL-3.0-or-later

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Comments

add pole-mixing to ladder filter, to support more responses

Adds pole mixing to the ladder filter, allowing for more filter responses, basically granting nonlinear highpass/bandpass without having to add more models.

This means that I've removed the resonance gain compensation, since this only works when the filter outputs a lowpass. Makes it a bit more like you'd expect a transistor ladder to be, but also a bit less predictable.

Also adds some code for plotting the transfer function if you want it. I can delete this if not.

opened by Fredemus 0