Results 1 to 10 of about 71,665 (253)
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 +2 more
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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 +3 more
doaj +5 more sources
Assessment of the sound reduction index provided by noise barriers with low sound insulation
Applied Acoustics[EN] In the realm of environmental noise control, the emergence of metamaterial-based acoustic barriers, such as sonic crystal noise barriers (SCNBs), represents a significant innovation due to their unique ability to manipulate sound waves. Despite their growing popularity, accurately assessing their efficacy remains a challenge. In one of the current
R Pico, Romina Del Rey, Jesus Alba
exaly +3 more sources
Sound Reduction Index of Interior Door by Aperture Sizes at Door's Bottom
Transactions of the Korean Society for Noise and Vibration Engineering, 2010 The Sound reduction indices(SRIs) of interior door with 13 different size apertures are measured in acoustic chamber. Also, as a theoretical approach, the SRIs are estimated using Gomperts` theory. In this study, the aperture of interior door is focused on the lower part of door leaf which is well known as a main cause to deteriorate the sound ...
Myung-Jun Kim
exaly +3 more sources
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
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 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 +3 more
doaj +1 more source
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
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
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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