The frequency of a sound wave (formula for wave frequency) – sound waves can have different frequencies. The unit of frequency in the SI coordinate system is Hertz (Hz). The human ear can perceive sounds with frequencies between 16 Hz and 20 kHz. The frequency of sound waves is simply the number of cycles that pass in one second.
The name of the frequency unit in the SI system comes from the surname of the German physicist Heinrich Hertz, who studied electromagnetic waves among other things during his life.
Below are the formulas for wave frequency:
f = v / λ
f = 1 / T
f = ω / 2π
where:
f – frequency of sound measured in Hz;
v – wave speed (only for harmonic waves) measured in m/s;
λ – wavelength of sound measured in m;
T – period of wave oscillation measured in s;
ω – angular frequency measured in rad/s.
