Differences between acoustical insulation properties measured in the laboratory and results of measurements in situ

Lang, Judith

doi:10.1016/0003-682x(72)90004-7

Cited by 6 publications

(1 citation statement)

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“…A compilation of the influence of flanking transmission reported in 14 publications is found in a 1972 paper by Lang. 11 On average, the weighted apparent sound reduction index in finished dwellings was 8 dB less than that which the partition itself should have provided according to laboratory measurements.…”

Section: Trends In Building Technology and Its Side Effects On Sound mentioning

confidence: 87%

Fifty years of "Development" in sound insulation of dwellings

Kihlman¹

1994

Noise Control Eng. J.

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Sociological surveys show that good sound insulation and low interior noise levels are highly ranked properties of dwellings. During the period from 1940 to 1990 the physics of sound transmission has become better and better understood, particularly as to how sound transmission is affected by different resonance phenomena, edge conditions, loss processes, and flanking transmission. However, the minimum requirements for as-built sound insulation have not been raised more than marginally in spite of the improved possibilities and the much increased number and power of noise sources, nor has the building industry made use of the increased knowledge. In general, the sound quality of dwellings has not been much improved in the period from 1940 to 1990. During the decade of the 1980's, a positive development toward greater sound insulation was noticed in some European countries. The noise reduction can be increased by 5-10 dB at an incremental cost of the order of 0%-3% in investment, depending on the circumstances.

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Section: Trends In Building Technology and Its Side Effects On Sound mentioning

confidence: 87%