Program to decode radio transmissions from devices on the ISM bands (and other frequencies)

A library for audio and music analysis, feature extraction.

PESQ (Perceptual Evaluation of Speech Quality) Wrapper for Python Users (narrow band and wide band)

A .NET Standard library for computing the Fast Fourier Transform (FFT) of real or complex data

Detect source resolution of upscaled images and videos

An audiophile-grade sample rate converter

Complex Continuous Wavelet Transform

Real time monaural source separation base on fully convolutional neural network operates on Time-frequency domain.

Elegant Butterworth and Chebyshev filter implemented in C, with float/double precision support. Works well on many platforms. You can also use this package in C++ and bridge to many other languages for good performance.

Microcontroller targeted C library for Kalman filtering

FIR & LMS filter implementation in C++ with Python & JAVA wrappers

Kalman filter fixed-point implementation based on libfixmatrix, targeted at embedded systems without an FPU and/or need for performance.

High-accuracy SIMD sin/cos/sincos library in C with AVX2, AVX-512, and NEON support. Full-range reduction. Fast at scale. Portable by design.

Collection of miscellaneous tools for PDM signals generation, acquisition and decoding

Compute interstation correlations of seismic ambient noise, including fast implementations of the standard, 1-bit, phase and wavelet phase cross-correlations.

Time-scale phase-weighted stack software for seismic signal denoising

microblx: real-time, embedded, reflective function blocks.

Fast superresolution frequency detection using MUSIC algorithm

Single file forward and inverse Sliding DFT in C, C++ and Python

A modern, modular, and performance enhanced C/C++ decoder for digital voice. DMR, P25, NXDN, YSF, and more.