LibrosaCpp is a c++ implemention of librosa using Eigen
ewan xu [email protected]
similar with librosa, you can just use a single header librosa.h to compute short-time fourier transform coefficients,mel spectrogram or mfcc
- 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);- other window function
- other dct type
- cepstral filtering