The minimum volume is the volume at which the lower limit of the minimum sound frequency is obtained. The bass lower limit frequency of the room depends on its small volume. The larger the volume is, the lower limit frequency. The relationship between the minimum volume (V) of the room and the wavelength (λ) corresponding to the lower limit frequency is: Vmin ≥ 4 λ 3 max . This formula can be used to estimate the wavelength of the lower limit frequency of a room. The speed of sound is divided by the wavelength. The lower limit frequency of the room sound can be obtained.
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