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LibrosaCpp is a c++ implemention of librosa to compute short-time fourier transform coefficients,mel spectrogram or mfcc

License: Apache License 2.0

Shell 0.17% JavaScript 0.07% C++ 81.65% Python 0.09% C 2.14% Fortran 11.78% CSS 0.05% Cuda 1.16% CMake 2.89%

librosacpp's Introduction

LibrosaCpp

LibrosaCpp is a c++ implemention of librosa using Eigen

Authors

ewan xu [email protected]

About

similar with librosa, you can just use a single header librosa.h to compute short-time fourier transform coefficients,mel spectrogram or mfcc

Usage

copy the source directory 'librosa' to your project
add the source directory to your project include path
write a few lines of code

#include <librosa/librosa.h>

  int sr = 16000;
  int n_fft = 400;
  int n_hop = 160;
  std::string window = "hann";
  bool center = false;
  std::string pad_mode = "reflect";
  float power = 2.f;
  int n_mel = 40;
  int fmin = 80;
  int fmax = 7600;
  int n_mfcc = 20;
  bool norm = true;
  int type = 2;
  
  // compute short-time fourier transform coefficients
  std::vector<std::vector<std::complex<float>>> X = librosa::Feature::stft(x, n_fft, n_hop, window, center, pad_mode);
  // compute mel spectrogram
  std::vector<std::vector<float>> mels = librosa::Feature::melspectrogram(x, sr, n_fft, n_hop, window, center, pad_mode, power,n_mel, fmin, fmax);
  //compute mfcc
  std::vector<std::vector<float>> mfcc = librosa::Feature::mfcc(x, sr, n_fft, n_hop, window, center, pad_mode, power, n_mel, fmin, fmax, n_mfcc, norm, type);