libs/qm-dsp/base/Pitch.h

   1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
   2
   3 /*
   4     QM DSP library
   5     Centre for Digital Music, Queen Mary, University of London.
   6     This file Copyright 2006 Chris Cannam.
   7
   8     This program is free software; you can redistribute it and/or
   9     modify it under the terms of the GNU General Public License as
  10     published by the Free Software Foundation; either version 2 of the
  11     License, or (at your option) any later version.  See the file
  12     COPYING included with this distribution for more information.
  13 */
  14
  15 #ifndef _PITCH_H_
  16 #define _PITCH_H_
  17
  18 class Pitch
  19 {
  20 public:
  21     static float getFrequencyForPitch(int midiPitch,
  22                                       float centsOffset = 0,
  23                                       float concertA = 440.0);
  24
  25     static int getPitchForFrequency(float frequency,
  26                                     float *centsOffsetReturn = 0,
  27                                     float concertA = 440.0);
  28 };
  29
  30
  31 #endif