Flanking Transmission Measurements: Part 1- Measurement Techniques super(1)

Recently a series of building acoustics measurements were performed at the BRANZ site in Judgeford, New Zealand. A special four-room test facility was built to enable a lightweight horizontal-cruciform building section to be tested. Shielding methods were used to measure the sound transmission through the various possible paths, direct and flanking for both airborne and impact sound. The results were also recombined to estimate the results for flanking configurations other than those tested. This paper presents the test facility, discusses the measurement techniques and presents some results which illustrated the measurement technique. A subsequent paper (part 2) will summarise the complete results of the test series.