Sound Transmission Class (STC ) is an integer rating of how well a building partition attenuates airborne sound. In the USA, it is widely used to rate interior partitions, ceilings and floors, …

2023年3月30日 · When people are evaluating building materials and acoustical products for sound reduction, they rely on the sound transmission class or STC rating of the product. By …

2024年10月30日 · • STC 35-40：能聽到高聲量的談話聲，但普通對話會變得不清楚。 • STC 50 以上：隔音效果極佳，幾乎聽不到任何聲音。 STC 等級主要針對中高頻的聲音（500 Hz 到 …

2018年9月17日 · It is the ability of a product or material to reduce the transmission of sound between rooms. It measures how much sound a wall, door, window or ventilation system, for …

Below are the STC ratings of various wall assemblies, each presented to help illustrate concepts, improvements and rules of thumb. The estimated ratings are based on laboratory test results …

2023年10月23日 · 声音传输等级 (STC) 评级是用于衡量建筑材料或隔板抵抗空气传播声音传播能力的尺度。 评级表示材料或隔板提供的隔音分贝数。 STC 等级根据 ASTM E413-10 标准通 …

2016年10月17日 · 声音传输类 (STC)描述了一种产品或材料阻止空气传播声音的能力。 自20世纪60年代以来，STC评级一直被用来描述天花板、墙壁、地板和门的声学性能。

2025年3月7日 · If the STC rating is 35, that means the material in question can reduce sound transfer by 35 decibels. Of course, the rating is determined as an average based on the …

隔声分贝单位中:NIC,RW,STC分别是什么意思?美国 (按照美国材料试验标准ASTWE-90，E-413)采用隔声等级，即STC (Sound Transmission Class)等级。 STC是一个简单数字等级。 大多数 …

The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance.