Mirror of https://git.ffmpeg.org/ffmpeg.git

Automagically synchronize subtitles with video.

A Swift library that uses the Accelerate framework to provide high-performance functions for matrix math, digital signal processing, and image manipulation.

Math.NET Numerics

Software defined radio receiver powered by GNU Radio and Qt.

Fast, modern C++ DSP framework, FFT, Sample Rate Conversion, FIR/IIR/Biquad Filters (SSE, AVX, AVX-512, ARM NEON)

Vulkan/CUDA/HIP/OpenCL/Level Zero/Metal Fast Fourier Transform library

Arduino Audio Tools (a powerful Audio library not only for Arduino)

🇸Superpowered Audio, Networking and Cryptographics SDKs. High performance and cross platform on Android, iOS, macOS, tvOS, Linux, Windows and modern web browsers.

Spectrum analyzer for multiple SDR platforms (PyQtGraph based GUI for soapy_power, hackrf_sweep, rtl_power, rx_power and other backends)

Generate waveform images from audio files on iOS, macOS & visionOS in Swift. Native SwiftUI & UIKit views.

Theory of digital signal processing (DSP): signals, filtration (IIR, FIR, CIC, MAF), transforms (FFT, DFT, Hilbert, Z-transform) etc.

Realtime audio analysis in Python, using PyAudio and Numpy to extract and visualize FFT features from streaming audio.

A lyric player component library aims to look similar to iPad version of Apple Music. Also with DOM, React and Vue bindings. 一个基于 Web 技术制作的类 Apple Music 歌词显示组件库，同时支持 DOM 原生、React 和 Vue 绑定。

LeetCode Contest Rating Prediction

SIMD Library for Evaluating Elementary Functions, vectorized libm and DFT

autocorrelation-based O(NlogN) pitch detection

DCT (discrete cosine transform) functions for pytorch

🎶 Real-time audio spectrogram generator for the web

CMSIS-DSP embedded compute library for Cortex-M and Cortex-A