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  1. #1

    Default Sound Transmission Class

    Dear All,

    I prepared test for STC and i have read in some article in internet but still confused.

    If anybody can help me or send me the procedure with sample calculation, i will appreciate.


  2. #2

    Default Education

    The Sound Transmission Class (STC) is a single-number rating system based on an 18-point scale that describes how well a building partition attenuates airborne sound. It is an ASTM International standard method of rating indoor partitions and elements for their ability to block sound transmission from one room to another. The STC is also known as ASTM Standard E 413. Read article to learn how you can write compelling coursework on this topic. The STC rating is essentially a sound pressure level rating that attempts to measure how much noise passes through a partition.

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