Search results with tag "Hvac acoustic fundamentals"

HVAC Acoustic Fundamentals - Vibrationdata

6 Application Guide AG 31-010 Wavelength and Frequency The wavelength of sound in air is given by; Eq. 1 λ = co /f Where λ is the wavelength in feet (m). co is the speed of sound, which is 1120 feet per second (341 m/s) at sea level. f is the frequency in Hz.

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