Results 1 to 10 of about 14,069 (231)

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

open access: yesAcoustics, 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   +2 more sources

Prediction of Sound Insulation Using Artificial Neural Networks—Part I: Lightweight Wooden Floor Structures

open access: yesAcoustics, 2022
The artificial neural networks approach is applied to estimate the acoustic performance for airborne and impact sound insulation curves of different lightweight wooden floors.
Mohamad Bader Eddin   +4 more
doaj   +3 more sources

Determination of the Airborne Sound Insulation of a Straw Bale Partition Wall [PDF]

open access: yesCivil and Environmental Engineering, 2017
This paper describes the results of a scientific project focused on determining of the Airborne Sound Insulation of a peripheral non-load bearing wall made of straw bales expressed by Weighted Sound Reduction Index.
Teslík Jiří   +2 more
doaj   +2 more sources

Sound quality control method of 110 kV transformer based on distributed variable stiffness dynamic vibration absorber [PDF]

open access: yesScientific Reports
Using the A-weighted sound pressure level (L A) as the only evaluation index for transformer noise is unreasonable. To measure the actual impact of transformer noise on humans more effectively, this paper proposes to introduce the sound quality ...
Cai Zeng   +5 more
doaj   +2 more sources

Prediction of Sound Insulation Using Artificial Neural Networks—Part II: Lightweight Wooden Façade Structures

open access: yesApplied Sciences, 2022
A prediction model based on artificial neural networks is adapted to forecast the acoustic performance of airborne sound insulation of various lightweight wooden façade walls.
Mohamad Bader Eddin   +4 more
doaj   +2 more sources

A NOTE ON METHODS FOR THE ESTIMATION OF THE AIRBORNE SOUND INSULATION OF TIMBER FRAME STRUCTURES [PDF]

open access: yesCivil Engineering Journal, 2016
Acoustic behavior of structures with wooden elements is nowadays of great interest. At the same time, the estimation of the airborne sound insulation of timber frame structures is a complex procedure which includes the prediction of several resonances ...
Jan Šlechta
doaj   +1 more source

Perforated Steel Stud to Improve the Acoustic Insulation of Drywall Partitions

open access: yesAcoustics, 2021
Steel studs are an inevitable part of drywall construction as they are lightweight and offer the required structural stability. However, the studs act as sound bridges between the plasterboards, reducing the overall sound insulation of the wall ...
Arun Arjunan   +2 more
doaj   +1 more source

A wavelet-based noise reduction algorithm and its clinical evaluation in cochlear implants. [PDF]

open access: yesPLoS ONE, 2013
Noise reduction is often essential for cochlear implant (CI) recipients to achieve acceptable speech perception in noisy environments. Most noise reduction algorithms applied to audio signals are based on time-frequency representations of the input, such
Hua Ye   +5 more
doaj   +1 more source

Thermal and Acoustic Characterization of Innovative and Unconventional Panels Made of Reused Materials

open access: yesAtmosphere, 2022
Europe calls for a transition to the circular economy model based on recycling, reuse, the proper design of products, and repair. Recycling requires energy and chemical products for waste processing; on the contrary, reusing reduces the impact of ...
Manuela Neri
doaj   +1 more source

Prediction of Sound Insulation of Sandwich Partition Panels by Means of Artificial Neural Networks

open access: yesArchives of Acoustics, 2017
The paper presents the application of Artificial Neural Networks (ANN) in predicting sound insulation through multi-layered sandwich gypsum partition panels. The objective of the work is to develop an Artificial Neural Network (ANN) model to estimate the
Naveen GARG   +2 more
doaj   +1 more source

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