Introduction: At present, the sound insulation material is relatively wide for the domestic market, but each soundproof material will have different materials and different sound insulation effects. Such as piano room soundproof doors, studio soundproof doors, home interior soundproof doors, court theater soundproof doors, external materials are made of 1.5mm cold rolled steel, internal use 100KG/M3 rock wool and other important sound insulation materials. Perhaps the majority of friends do not know the importance of soundproof doors there, and now we will unlock the key points of soundproof doors as long as they are in the following three points: First, noise
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Noise refers to sounds that people do not want to hear, including traffic noise, machine noise, loud noise, and living noise. In addition, the generation and transmission of noise include three elements: the source of noise, the means of transmission, and the audience. In our human hearing, most adults hear noise in the frequency range of 100 to 5000 Hz. The frequency of people’s conversations and noises that are common in buildings is basically within the range of 125 to 4000 Hz. The basic noise affects our living environment. In the daily life, we spend in this noise and we do not get a trace of it. Quiet environment. If you install home theater soundproof doors, piano room soundproof doors, studio soundproof doors, home interior soundproof doors, the amount of sound insulation STC can be in the range of 125 to 4000HZ, let us live in a quiet environment, to avoid noise trouble.
Second, the decibel rate
The decibel rate refers to the unit of the relative intensity of the sound, and the physical reference sound pressure (PO=2 x 10 Pa) corresponds to 0 dB. If the noise sound pressure is P, the noise decibels = 20 Log(P/PO). Therefore, decibels refer to units.
Third, the amount of noise
The soundproofing volume of the soundproof door refers to the noise isolation capability of the soundproof door to the range of 125 to 4000HZ. The higher the soundproofing amount, the more effective the soundproof effect of the soundproof door. 