### Strutt Help

Wavelength    1/1, 1/3

Strutt|Fundamentals|Wavelength inserts the wavelength of a sound wave in air into each octave band or 1/3-octave band of the selected row.

The wavelength lambda is calculated as:

lambda=c/f, where

c is the wave velocity, temperature dependent (343 m/s at 20 °C)
f is the frequency of wave (Hz)

The user may calculate the wave velocity as a function of temperature (using the Speed of Sound calculation) or else use the default value of 343 m/s.