Results 1 to 10 of about 7,658,431 (298)

Analysis of the Dependence of the Apparent Sound Reduction Index on Excitation Noise Parameters [PDF]

Applied Sciences, 2020
In acoustic practice, established methods of measuring the acoustic properties of partition structures are used. Recommended procedures and means can be found in technical standards, but practice suggests that measurement results may also depend on ...
Ervin Lumnitzer, Miriam Andrejiova, Anna Yehorova   +2 more
doaj   +4 more sources

Effects of Building Height on the Sound Transmission in Cross-Laminated Timber Buildings—Vibration Reduction Index

Buildings, 2023
High-rise wooden buildings are increasing in popularity, and they typically include cross-laminated timber in the structure. Taller buildings result in higher loads on the junctions lower down in the building, which are suggested in the literature to ...
Erik Nilsson, Sylvain Ménard, Delphine Bard, Klas Hagberg   +3 more
doaj   +5 more sources

Influence of Specimen Size and Test-Opening Geometry on the Sound Reduction Index Measured in Small-Scale Coupled Reverberation Rooms [PDF]

Sensors
The sound reduction index R is commonly determined using standardized laboratory procedures developed primarily for full-size building elements. However, in many research and development applications, including technical enclosures, lightweight panels ...
Agata Polaczek, Katarzyna Baruch-Mazur, Dorota Młynarczyk   +2 more
doaj   +2 more sources

Acoustical aspects of replacing traditional materials in building elements with renewable and recycled ones

Acta Polytechnica CTU Proceedings, 2022
Building elements, especially partitions, floors and external walls significantly affect indoor acoustic comfort. Their ability to reduce noise transmission from neighbouring rooms or from outdoors depends on the element composition and the building ...
Jiří Nováček, Jaroslav Hejl
doaj   +1 more source

Sound Reduction of Ventilation Ducts through Walls: Experimental Results and Updated Models

Acoustics, 2021
Ventilation ducts can have a negative effect on the sound reduction index between two rooms if they pass through the dividing structure without treatments.
Erik Nilsson, Nikolaos-Georgios Vardaxis, Sylvain Ménard, Delphine Bard Hagberg   +3 more
doaj   +1 more source

An experimental study on the influence of incident characteristics on sound insulation between rooms: Study on the incident sound field in the insulation performance measurement for partition walls. Part 2

Japan Architectural Review, 2022
The sound field characteristics due to room modes are considered to have strong influences on the low‐frequency sound insulation between rooms in field.
Yu Aida, Naohisa Inoue, Tetsuya Sakuma
doaj   +1 more source

ANALYSIS OF NEIGHBOURING NOISE DISTURBANCE IN RECEIVING ROOM [PDF]

Civil Engineering Journal, 2017
This paper is focused on analysis of neighboring noise as a disturbance agent. This problematics is closely connected with psychoacoustics or more generally with psychology.
Jaroslav Hejl
doaj   +1 more source

Sound reduction index of clay hollow brick walls [PDF]

, 2020
In G. Pernigotto, F. Patuzzi, A. Prada, V. Corrado, & A. Gasparella (Eds.), Building Simulation Applications BSA 2019 (pp. 267–274).
Granzotto N., Piana E. A., Di Bella A.
openaire   +2 more sources

Production of Acoustic Insulating Materials from Viscoelastic Mattress Waste

Sci, 2022
In this work, briquettes from mattress waste are manufactured and the acoustic properties of the materials produced are checked. Briquettes are made at temperatures between 170 and 185 °C using waste from viscoelastic memory foam (VMF) and applying ...
Juan A. Conesa, Eugenio Tomás
doaj   +1 more source

Basic considerations on the practical method for predicting sound insulation performance of a single-leaf window

UCL Open Environment, 2021
As a basic study of a practical method for predicting the sound insulation performance of windows, this report presents a study of the sound reduction index of windows with single glazing, below a critical frequency.
doaj   +2 more sources