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AkiyukiOkayasu/FrequencyToMIDInote.cpp

Last active October 12, 2017 08:33
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周波数(Hz)からMIDIノートナンバーに変換するための方法(C++)
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FrequencyToMIDInote.cpp
// 周波数(Hz)からMIDIノートナンバーへの変換
// Wikipediaの[MIDI tuning standard](https://en.wikipedia.org/wiki/MIDI_tuning_standard)を参照
// A=440Hzの場合
int freqToMidi(float freq)
{
int midinote = std::nearbyint(69.0 + 12.0 * log2(freq / 440.0));
return midinote;
}
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