/usr/include/qm-dsp/base/Pitch.h is in libqm-dsp-dev 1.7.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
QM DSP library
Centre for Digital Music, Queen Mary, University of London.
This file Copyright 2006 Chris Cannam.
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 _PITCH_H_
#define _PITCH_H_
/**
* Convert between musical pitch (i.e. MIDI pitch number) and
* fundamental frequency.
*/
class Pitch
{
public:
static float getFrequencyForPitch(int midiPitch,
float centsOffset = 0,
float concertA = 440.0);
static int getPitchForFrequency(float frequency,
float *centsOffsetReturn = 0,
float concertA = 440.0);
};
#endif
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