https://github.com/mkaudio-company/fastcwt

Rust-lang Continuous Wavelet Transform(CWT) library inspired by fCWT.
https://github.com/mkaudio-company/fastcwt

audio-analysis audio-processing cwt rust rust-lang wavelet wavelet-transform

Last synced: 12 months ago
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Rust-lang Continuous Wavelet Transform(CWT) library inspired by fCWT.

• Host: GitHub
• URL: https://github.com/mkaudio-company/fastcwt
• Owner: mkaudio-company
• License: apache-2.0
• Created: 2023-04-03T23:03:27.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2024-05-16T08:12:51.000Z (almost 2 years ago)
• Last Synced: 2025-04-04T16:44:31.204Z (12 months ago)
• Topics: audio-analysis, audio-processing, cwt, rust, rust-lang, wavelet, wavelet-transform
• Language: Rust
• Homepage:
• Size: 74 MB
• Stars: 16
• Watchers: 1
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE-MIT

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README

          
# fastcwt

[![](https://img.shields.io/crates/v/fastcwt.svg)](https://crates.io/crates/fastcwt)

[![](https://img.shields.io/crates/l/fastcwt.svg)](https://crates.io/crates/fastcwt)

[![](https://docs.rs/fastcwt/badge.svg)](https://docs.rs/fastcwt/)

Rust-lang Continuous Wavelet Transform(CWT) library inspired by fCWT.

This crate is a direct translation of fCWT Library written in C++ by Arts, L.P.A. and van den Broek, E.L. (https://github.com/fastlib/fCWT)

I changed certain functions that I cannot translate, it seems like it could be eliminated, or the difference between fftw Library and rustfft crate. (fCWT used fftw, and fastcwt used rustfft.)

# Usage

``` Rust

use fastcwt::*;

use rand::prelude::*;

let wavelet = Wavelet::create(1.0); //Create a Morlet wavelet.

let scale = Scales::create(ScaleTypes::LinFreq, 48000, 20.0, 20000.0, 1000); //Create a scale factor.

let mut transform = FastCWT::create(wavelet, true); // Create a fCWT instance.

let mut input = vec![];

for _ in 0 .. 48000

{

    input.push(thread_rng().gen_range(-1.0 .. 1.0))

};

let result = transform.cwt(1000, input.as_slice(), scale); //Store the result.

```

# Changelog

0.1.9 - Used no_denormals to avoid extra latency. Cleaned up the repository.

0.1.8 - Droped mkaudiolibrary which is not used.

0.1.7 - Used boxed slice instead of vec in Scales struct.

0.1.6 - Transfered owndership to company account.

0.1.5 - Parallelized FFT using rayon crate.

0.1.4 - Added error messages in assert!() and #![forbid(unsafe_code)] macro.

0.1.3 - Get rid of unsafe codes and fn find2power().

0.1.1, 0.1.2 - Minor fixes.

0.1.0 - Initial release.

# Citation

Arts, L.P.A., van den Broek, E.L. The fast continuous wavelet transformation (fCWT) for real-time, high-quality, noise-resistant time–frequency analysis. Nat Comput Sci 2, 47–58 (2022). https://doi.org/10.1038/s43588-021-00183-z