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

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

Streamlining Software Design

VectorFFT: A permutation-free mixed-radix FFT library that beats Intel MKL and FFTW on every tested size. Hand-tuned AVX2/AVX-512 codelets for 18 radixes, zero-allocation in-place execution, and a wisdom-based planner. 1.1x–4.9x faster than Intel MKL, 1.3x–12.8x faster than FFTW. Pure C, no dependencies.

Real-time FFT-based Audio Spectrum Analyzer on STM32F411 | INMP441 mic + SSD1306 OLED | CMSIS-DSP 512-pt FFT | 8-band visualization

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

High-Fidelity Sheath Current Acquisition (12.8kHz/8-Ch) on STM32, Featuring 1/2/3/5/7th Harmonic Analysis and Algorithmic Zero-Crossing Reconstruction.

Decompose any signal into a weighted sum of squiggly lines

A fork of Julien Pommier's Pretty Fast FFT (PFFFT) library, with several additions

small simple FFT implementation

Audio signal processing application built in LabWindows/CVI (C) — time and frequency domain analysis

Embedded STM32 project using ADC + DMA and FFT to detect the dominant audio frequency and display its range on an LCD with LEDs.

DO NOT CHECK OUT THESE FILES FROM GITHUB UNLESS YOU KNOW WHAT YOU ARE DOING. (See below.)

C library for audio noise reduction and other spectral effects

This project implements a real-time audio spectrum analysis system using the TMS320C6713 DSP processor. The system captures live audio input, performs FFT analysis, computes band energies, and indicates the dominant frequency band using onboard LEDs.

A Simple FFT for embedded use

Mini Audio Wave and FFT Visualizer on Custom PCB based on STM32L4

Numo::Pocketfft provides functions for descrete Fourier Transform based on pocketfft

This repository provides an MPLAB® X project for a FFT Spectrum Analyzer implementation using the PIC16F13276 microcontroller.