Recognised as Musical note

D0

D0 is MIDI note 14, sounding at 18.354 Hz in equal temperament with A4 = 440 Hz. Its wavelength in air is 18.688 m, and it sits in octave 0.

Pitch

Scientific pitch notationD0

MIDI note number14

Frequency18.354 Hzequal temperament, A4 = 440 Hz, a convention rather than a constant

Pitch classD (2)

Octave0

Wavelength in air18.688 mat 343 m/s, dry air at 20 °C

Period54.4839 ms

Frequency one octave up36.708 Hzdoubling the frequency

Frequency one octave down9.177 Hz

AudibleOutside typical hearinghuman hearing runs roughly 20 Hz to 20 kHz and narrows with age

Perfect fifth belowG-1 · 12.25 Hz

Major third aboveF#0 · 23.12 Hz

Perfect fifth aboveA0 · 27.5 Hz

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