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Frequency
440Hz
A4
Ā±0Ā¢MidrangePresets
Waveform Type
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Current Note
A4
Cents: Ā±0Ā¢
Octave: 4
Band: Midrange
Physics Values
Period (T = 1/f)2.273 ms
Wavelength (Ī» = v/f)0.780 m
MIDI note69
Physics Reference
f = 1/T
Frequency is cycles per second (Hz). T is the period.
Ī» = v/f
Wavelength in air. v ā 343 m/s at room temperature.
f_beat = |fā ā fā|
Two close tones produce a slow amplitude modulation.
fā = 440 Ā· 2^((nā69)/12)
12-TET tuning. n=69 is A4. Each octave doubles frequency.