title: Ultrasonic airborne insertion loss measurements at normal incidence (L).
abstract: Transmission loss and insertion loss measurements of building materials at audible frequencies are commonly made using plane wave tubes or as a panel between reverberant rooms. These measurements provide information for noise isolation control in architectural acoustics and in product development. Airborne ultrasonic sound transmission through common building materials has not been fully explored. Technologies and products that utilize ultrasonic frequencies are becoming increasingly more common, hence the need to conduct such measurements. This letter presents preliminary measurements of the ultrasonic insertion loss levels for common building materials over a frequency range of 28-90 kHz using continuous-wave excitation.
authors.affiliation: Acoustics Research Group, Department of Physics and Astronomy, N283 Eyring Science Center, Brigham Young University, Provo, Utah 84602, USA.
authors.forename: Jayrin
authors.initials: J
authors.lastname: Farley
authors.forename: Brian E
authors.initials: BE
authors.lastname: Anderson
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D000388:Air; D003252:Construction Materials; D005160:Facility Design and Construction / Q000295:instrumentation*; D008962:Models, Theoretical; D009038:Motion; D009622:Noise / Q000517:prevention & control*; D011312:Pressure; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors; D014465:Ultrasonics / Q000295:instrumentation*