NDLTD Global ETD Search
  • Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • 1
  • Tagged with
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Search results

Showing 1 to 2 of 2 (0.042 seconds)

Spelling suggestions: "subject:"found announce"" "subject:"found croyance""

1

Sound Annoyance : Definitioner och användning av begreppet

Svedin, Hanna, Svensson, Maria January 2010 (has links)
No description available.
sound annoyance
annoyance
störande ljud
kontroll
ljudmiljö.
2

Correlation between measured and perceived impact sound in schools

Burwall, Anton January 2022 (has links)
This project investigated the correlation between measured impact sound insulation and perceived walking sound annoyance in schools. The correlation was tested by performing standardized impact sound insulation measurements for different floor structures and comparing the measurement results with subjective perception of recorded walking for the same floor structures. Subjective perception of walking sound was evaluated by performing listening tests based on the recorded walking sounds. Five structures were tested, four different CLT structures and one concrete structure. The objective was to determine the significance of the frequencies below 100 Hz for perceived walking sound annoyance and to investigate whether the inclusion of frequencies below 100 Hz in the evaluation of impact sound insulation would improv the correlation between measured and perceived impact sound. The results from the listening tests showed that the rated walking sound annoyance for the structures did not correlate to the structures’ measured impact sound insulation. For example, the structure with the worst impact sound insulation was not rated the worst from the listening tests. Improvements to the correlation between measured and perceived impact sound were seen when the impact sound insulation was evaluated from 25 Hz, but the correlation was still not fully satisfactory.
Acoustics
Impact sound
Impact sound insulation
Walking sound
Walking sound annoyance
Wood
Cross-laminated timber
CLT
Schools
Perception
Civil Engineering
Samhällsbyggnadsteknik
Building Technologies
Husbyggnad
Materials Engineering
Materialteknik
Physical Sciences
Fysik
Mathematics
Matematik

Page generated in 0.0474 seconds