Catatan bukti metode

Sound Transmission Class

Sound Transmission Class (STC) is a single-number rating used to describe how well building elements (walls, doors, windows) reduce sound transmission between adjacent spaces. Standardized by ASTM International and ISO, STC is calculated from sound transmission loss (STL) measurements across the speech frequency range (125 Hz–4 kHz). It is the primary metric used in building codes, product specifications, and acoustic design to ensure privacy, noise control, and occupant comfort.

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Sound Transmission Class (STC) Rating and Measurement

Catatan metode taksonomi · process-pipeline / acoustics

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