Zhengzhou good news sound-absorbing materials factory set soft pack fabric acoustic panels, ktv panels, polyester fiber acoustic panels, insulation blankets, soundproof windows, meeting room acoustic panels, wooden acoustic panels, sound board, sound-absorbing cotton, absorbing theater production, processing, OEM acoustic material in one professional business. Henan is a professional sound absorption and insulation materials production base, Tel 0371-65595669 noisy, in order to have a clean place, what noise reduction measures have you tried? Media Networks Survey: hang thick curtains, carpets, for multi-layer glass and use cotton insulation is the most common four methods. Which most effective? Factors that affect the size of the two voices, one sound-proofing material, and second sound source distance. The same distance with the experimental subjects with a variety of materials were blocking sound source, then the noise decibel meter measured value is the sound effects for each material. In this experiment, the effect of noise reduction is the best cotton insulation barrier of 15.9 db noise, the worst is thick curtains, only 5.9 db noise barrier. "Although the thick curtains, but the pore itself is not much, but the surface is not smooth enough, we can not effectively absorb noise, nor can sound waves reflected back." Cheng Li explained that due to a soft cloth, in actual use, can not be completely obscured window curtains, Therefore, the actual noise reduction also discounted. Although the carpet inside the pores have more than curtains, but not enough to absorb a lot of noise. Multi-layer sandwich of glass and cotton insulation air barrier and absorb the sound waves, so there is a good noise reduction. It should be noted that, in real life, cotton insulation is only valid for the high frequency sound waves, weak low-frequency sound waves. The combined effect is concerned, or multi-layered glass better. Zhengzhou good news sound-absorbing materials Co., Ltd. Contact: Zhao workers Mobile: 18137160686 Tel: 0371-86509900 0371-65595669 QQ: 2353612861 Address: Zhengzhou City, Garden Road, Street excellence surplus waterfront home 10-7 Editor: Cao