Essays about: "Sound Absorber"

Found 2 essays containing the words Sound Absorber.

1. 1. Modular Sound Absorbing Unit : A system solution for implementation of noise abatement appliance in indoor environments

   University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik och samhälle

   Author : William Odevik; Viktor Wästersved Nyberg; [2020]
   Keywords : Noise; Sound Absorber; Modular; Novel Materials; Buller; Ljudabsorbent; Modulär; Okonventionellt Material;

   Abstract : There is a rising concern about the effects of noise on human health. The noise from our technologies and comforts that evokes a negative physiological response as a response, effects like cardiovascular disease, cognitive and hearing impairments are all examples of critical health results stemming from prolonged noise exposure (WHO, 2004 & 2018). READ MORE

3. 2. Investigation of the Influence of Incident Angle and Frequency Dependence of a Ceiling Absorber on Room Acoustic Descriptors

   University essay from Lunds universitet/Teknisk akustik; Lunds universitet/Institutionen för byggvetenskaper

   Author : Arnheidur Bjarnadottir; [2013]
   Keywords : Technology and Engineering;

   Abstract : The aim of this thesis is to investigate the following: − The influence of incident angle and frequency dependency of a ceiling absorber on room acoustic descriptors − How ceiling absorber properties influence room acoustic descriptors such as reverberation time and steady state sound pressure level − Whether steady state sound pressure level is more related to the statistical absorption coefficient (the average of all incidents) than the reverberation time in a room with an absorbent ceiling − The scattering effect due to furniture in a school classroom The software package WinFlag was used to simulate acoustics in a typical school classroom. The absorption coefficient was computed for several different angles, frequencies and ceiling absorbers. READ MORE