🎵 音楽
音符周波数計算機
Pick a note and octave to get its frequency, MIDI number, and wavelength.
Result will appear here
計算式
f = A4 × 2^((MIDI − 69) ÷ 12)
🎵 音楽
Pick a note and octave to get its frequency, MIDI number, and wavelength.
Result will appear here
f = A4 × 2^((MIDI − 69) ÷ 12)