STC of Isolation Assemblies


STC of simple wall assemblies, isolation and sound proofing

Calculation of STC, MTC, OITC and Rw explained
“Note: This document is an extension/adaptation of a document explaining STC and OITC It is expanded (+ additional adjustments and more in-depth comments) with the MTC and RW single number rating.”

Acoustic Shaping
“In the preceding sections we showed that significant forces could be generated in unsteady fields, especially standing wave fields, due to interaction between the field and solid (or liquid) particles.”

A Simple model of the sound insulation of gypsum board on resilient supports
“Although it is often standard procedure to use resilient channels to improve the sound transmission loss of a wall or floor system, there was no simple model of their performance…”

Paul Sabine: Acoustics and Architecture
“Paul Sabine book, I came across Average reduction numbers in decibels. 😯 {Acoustics and Architecture – BIG file (> 16 MB) – SLOW download.”

The worlds cheapest sound isolation tips
“The acoustic design of Outside Broadcast vehicles. E.W. Taylor”

RD 1984/3:Acoustic design of Outside Broadcast Vehicles

The design and application of modular, acoustic diffusing elements. R. Walker
“The design and application of modular, acoustic diffusing elements. R. Walker”

Are my speakers in a null?
I think my speakers are in a null. Briefly, the room is 11ft.8in. wide, 16ft. 4in. deep, with a ceiling of 8ft.

Bob Golds Room Mode Calculator
“For the case of a typical small studio…calculation shows that no frequency is likely to become prominent unless it (has) a high early intensity and a long decay. This condition* is satisfied only by the axial modes, which are therefore the only ones likely to become individually significant.”

IR818 – Measurements of sound insulation in building facades
“This report provides the results of over 100 laboratory measurements of the sound transmission loss of building façade components. These included various wall and roof constructions along with some windows and a number of tests to evaluate the effects of vents on sound insulation. “

NRC-CNRC Main Page
” Research in Construction (NRC-IRC) is the leading construction research agency in Canada, developing innovative solutions for the country’s largest industry. “

STC rating for glass – Sound Solutions
“The STC rating (acoustical properties) of glass are of considerable importance in many applications.”

STC for Steel framed Assemblies
” Estimation of Sound Transmission Class and Impact Insulation Class Rating for Steel Framed Assemblies “

Catalog of STC and IIC Ratings for Wall and Floor/Ceiling Assemblies

“This catalog of sound-rated wall and floor/ceiling assemblies was compiled to enable the user to quickly find a group of construction assemblies having similar sound transmission characteristics. It contains STC assemblies according to the following (Sound Transmission Class) or IIC (Impact Insulation Class) ratings for approximately 500 different construction assemblies ”