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Difference between sound absorption and sound insulation
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The difference between sound absorption and sound insulation is that one is damping noise and the other is absorbing sound waves and reducing noise. If you want to do a good job in acoustic treatment, you must deal with the concept of sound absorption and sound insulation in order to choose the right method and material.
Sound absorption, for the same space, change the characteristics of indoor sound field. The main function of sound absorption is to absorb reverberant sound in the room, which has no effect on direct sound, that is to say, sound absorption can improve sound quality, but it has poor effect on noise reduction. Moreover, the sound absorption material is porous and evacuated, while the sound insulation is mainly dense. Sound insulation, relative to two spaces, the main function of sound insulation is to cut off sound from one space to another and prevent noise interference.
The specific requirements for sound insulation materials are:
Densiform without pores, with large weight. However, in general, noise reduction is carried out by combining absorption and sound insulation, that is, sound insulation is used to cut off external noise and indoor noise transmitted to the outside, and then sound absorption is used to mediate indoor reverberation sound.
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Hebei Jinjilina insulation material Co., Ltd.
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