nnnoiseless is a rust crate for suppressing audio noise. It is a rust port of
the RNNoise C library, and is based on a recurrent
neural network.
While nnnoiseless is meant to be used as a library, a simple command-line
tool is provided as an example. It operates on WAV files or RAW 16-bit little-endian
PCM files. Run
cargo install nnnoiseless
to install it.
Except for the C API described below, nnnoiseless is mostly written in safe
rust. It currently uses unsafe in two places, to cast arrays of f32s to
arrays of Complex<f32>s with half the length; this delivers a small but
measurable performance improvement. If a future version of
RustFFT has built-in support for
real-only FFTs, this unsafe code will be removed.
It is possible to install nnnoiseless as C-API library, with a RNNoise-compatible header.
sh
$ cargo install cargo-c
$ mkdir staging-nnnoiseless
$ cargo cinstall --destdir staging-nnnoiseless
$ sudo cp -a staging-nnnoiseless/* /