Authors: Douglas Reynolds, Michael Schwob
Date: January 2019
Publication: ASHRAE Transactions Volume 125
Description: This paper discusses results from ASHRAE Research Project RP-1408, which includes tests to quantify the effect of length on the insertion loss of fiberglass-lined rectangular ducts. The results of insertion loss tests are presented for 1 and 2 in.(25 and 50 mm) thick fiberglass-lined rectangular ducts. Further, an analysis of this data with the objective to develop empirical equations to predict the insertion loss is discussed. The equations are presented and compared with prediction methods currently recommended by ASHRAE Handbook–HVAC Applications.
Authors: Douglas Reynolds, Michael Schwob
Date: January 2019
Publication: ASHRAE Transactions Volume 125
Description: This paper discusses results from ASHRAE Research Project RP-1408, which includes tests to quantify the effect of length on the insertion loss of fiberglass-lined round ducts. The results of insertion loss tests are presented for 1 and 2 in.(25 and 50 mm) thick fiberglass-lined round ducts. Further, an analysis of this data with the objective to develop empirical equations to predict the insertion loss is discussed. The equations are presented and compared with prediction methods currently recommended by ASHRAE Handbook–HVAC Applications.
Noise and Vibration Control in Building Design
Authors: Timothy Cape, Michael Schwob
Date: June 2016
Publication: Consulting-Specifying Engineer
Description: The acoustical environment in a building—good or bad—is the result of design. For optimal occupant comfort and facility functionality, attention to noise and vibration issues should be included early and throughout the building design and construction process.
Disco dining: Where DJ Culture Meets High-End Restaurants
Authors: Tyler Adams, Michael Schwob
Date: December 2013
Publication: The Journal of the Acoustical Society of America
Description: Live DJs have quickly become a popular feature in the contemporary landscape of high-end restaurants. Many new establishments are sacrificing prime dining floor area so they may prominently feature a DJ booth. The Restaurateur’s goal is not simply to entertain patrons and create ambiance but to use the name-recognition of DJs to draw customers and impart a sense of luxury and ”cool” cachet. Along with this cultural phenomenon comes an assortment of sound isolation and room acoustics issues that must be addressed to provide patrons with an enjoyable dining and listening experience and ensure the thumping dance music results in minimal impact to adjacent spaces and properties. In this talk, a number of such issues will be discussed using real-world problems and solutions from current high-end restaurants.
Schwob Acoustics 