aquila

Aquila is a digital signal processing library for C++11.

3 years after

What is Aquila?

Aquila is an open source and cross-platform DSP (Digital Signal Processing) library for C++11.

Build Status Windows Build Status Coverage Status Coverity Scan Build Status

Example

#include "aquila/aquila.h"

int main()
{
    // input signal parameters
    const std::size_t SIZE = 64;
    const Aquila::FrequencyType sampleFreq = 2000, f1 = 125, f2 = 700;

    Aquila::SineGenerator sine1(sampleFreq);
    sine1.setAmplitude(32).setFrequency(f1).generate(SIZE);
    Aquila::SineGenerator sine2(sampleFreq);
    sine2.setAmplitude(8).setFrequency(f2).setPhase(0.75).generate(SIZE);
    auto sum = sine1 + sine2;

    Aquila::TextPlot plot("Input signal");
    plot.plot(sum);

    // calculate the FFT
    auto fft = Aquila::FftFactory::getFft(SIZE);
    Aquila::SpectrumType spectrum = fft->fft(sum.toArray());

    plot.setTitle("Spectrum");
    plot.plotSpectrum(spectrum);

    return 0;
}

For more usage examples see the examples directory or browse them online.

Features

  • various signal sources (generators, text/binary/WAVE files)
  • signal windowing and filtering
  • performing operations on a frame-by-frame basis
  • calculating energy, power, FFT and DCT of a signal
  • feature extraction, including MFCC and HFCC features, widely used in speech recognition
  • pattern matching with DTW (dynamic time warping) algorithm

Requirements

The following dependencies are required to build the library from source.

  • a modern C++11 compiler
  • CMake >= 2.8

Contributing

See CONTRIBUTING.md for some guidelines how to get involved.

License

The library is licensed under the MIT (X11) license. A copy of the license is distributed with the library in the LICENSE file.

Authors

Zbigniew Siciarz (zbigniew at siciarz dot net)

This library includes code from Takuya Ooura's mathematical software packages, which are available at http://www.kurims.kyoto-u.ac.jp/~ooura/.

Related Repositories

altair

altair

Declarative statistical visualization library for Python ...

awesome-aframe

awesome-aframe

A collection of awesome things regarding the A-Frame ecosystem. ...

UnivaqInformaticaBot

UnivaqInformaticaBot

A telegram bot that shares news of our university's department ...

Audio-Visualizer

Audio-Visualizer

Audio Visualizer in C++ using OpenGL ...

decent

decent

A Ghost blog theme ...


Top Contributors

zsiciarz xantares liam-middlebrook cnvandev samuel-navarro