Recognised as Musical note

D#0

D#0
19.45 Hz
MIDI 15

D#0 (enharmonically Eb0) is MIDI note 15, sounding at 19.445 Hz in equal temperament with A4 = 440 Hz. Its wavelength in air is 17.6391 m, and it sits in octave 0.

Pitch

Scientific pitch notationD#0

Enharmonic equivalentEb0the same pitch in equal temperament, spelled differently

MIDI note number15

Frequency19.4454 Hzequal temperament, A4 = 440 Hz, a convention rather than a constant

Pitch classD# (3)

Octave0

As a sound wave

Wavelength in air17.6391 mat 343 m/s, dry air at 20 °C

Period51.4259 ms

Frequency one octave up38.891 Hzdoubling the frequency

Frequency one octave down9.723 Hz

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

Intervals from here

Octave belowD#-1 · 9.72 Hz

Perfect fifth belowG#-1 · 12.98 Hz

Semitone belowD0 · 18.35 Hz

Semitone aboveE0 · 20.6 Hz

Major third aboveG0 · 24.5 Hz

Perfect fifth aboveA#0 · 29.14 Hz

Octave aboveD#1 · 38.89 Hz

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Nearby notes

The same note in other octaves

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