2019-09-01 21:12:22 -04:00
|
|
|
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
pYIN - A fundamental frequency estimator for monophonic audio
|
|
|
|
|
Centre for Digital Music, Queen Mary, University of London.
|
2019-09-02 22:52:01 -04:00
|
|
|
|
2019-09-01 21:12:22 -04:00
|
|
|
This program is free software; you can redistribute it and/or
|
|
|
|
|
modify it under the terms of the GNU General Public License as
|
|
|
|
|
published by the Free Software Foundation; either version 2 of the
|
|
|
|
|
License, or (at your option) any later version. See the file
|
|
|
|
|
COPYING included with this distribution for more information.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef _YINUTIL_H_
|
|
|
|
|
#define _YINUTIL_H_
|
|
|
|
|
|
|
|
|
|
#include "vamp-sdk/FFT.h"
|
|
|
|
|
#include "MeanFilter.h"
|
|
|
|
|
|
|
|
|
|
#include <cmath>
|
|
|
|
|
|
|
|
|
|
#include <iostream>
|
|
|
|
|
#include <vector>
|
|
|
|
|
#include <exception>
|
|
|
|
|
|
|
|
|
|
using std::vector;
|
|
|
|
|
|
|
|
|
|
class YinUtil
|
|
|
|
|
{
|
|
|
|
|
public:
|
|
|
|
|
static double sumSquare(const double *in, const size_t startInd, const size_t endInd);
|
|
|
|
|
static void difference(const double *in, double *yinBuffer, const size_t yinBufferSize);
|
|
|
|
|
static void fastDifference(const double *in, double *yinBuffer, const size_t yinBufferSize);
|
|
|
|
|
static void slowDifference(const double *in, double *yinBuffer, const size_t yinBufferSize);
|
|
|
|
|
static void cumulativeDifference(double *yinBuffer, const size_t yinBufferSize);
|
|
|
|
|
static int absoluteThreshold(const double *yinBuffer, const size_t yinBufferSize, const double thresh);
|
|
|
|
|
static vector<double> yinProb(const double *yinBuffer, const size_t prior, const size_t yinBufferSize, size_t minTau = 0, size_t maxTau = 0);
|
|
|
|
|
static double parabolicInterpolation(const double *yinBuffer, const size_t tau,
|
|
|
|
|
const size_t yinBufferSize);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#endif
|
