The distance traveled by sound waves is the distance travelled. The length of sound waves at the frequency of the visit can be calculated by dividing the speed of the sound waves by the frequency of the sound waves. The wavelength range of the sound waves is 17 to 1.7 centimeters. In room acoustics, the calculation of the wavelength has an effect on the analysis of the sound field. Of great significance, we must pay full attention to the role of wavelengths. For example, only when the obstacle is larger than a sound wave wavelength, the sound wave will be normally reflected, otherwise the diffraction, scattering and other phenomena will increase, the acoustic shadow area will become smaller, and the acoustic characteristics will be very different; for example, the sound field greater than 2 times the wavelength is called In the far field, a sound field with a wavelength of less than 2 times is called a near field, and the far field and near field sound field distribution and sound propagation laws are quite different; besides, in a small-sized room (compared to the wavelength), the bass sound cannot be good. Reproduce, this is because of the long wavelength of bass, so in the average home, if the volume of the listening room is not large enough, the bass effect is difficult to reach the ideal state.
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