Published October 11, 2018 | Version v1
Conference paper Open

AUDIBILITY OF COINCIDENCE DIPS AND STRUCTURAL RESONANCE DIPS IN ACOUSTIC ISOLATION CURVES

Creators

  • 1. KU Leuven - Faculty of Architecture, Hoogstraat 51, 9000 Gent/ Paleizenstraat 65, 1030 Brussel, Belgium
  • 2. University of Zagreb – Faculty of Electrical Engineering and Computing, Unska 3, HR-1000 Zagreb, Croatia
  • 3. KU Leuven - Dept. Physics and Astronomy, ZMB – Laboratory of Acoustics, Celestijnenlaan 200D, 3001, Heverlee, Belgium

Description

The audibility of coincidence dips and structural resonance dips in acoustic isolation curves of different types 
of walls is investigated. Measured and simulated wall transmission curves with varying dip magnitude and 
central frequency are emulated in listening tests  by  presenting  simulated sound on the receiving side of a 
wall, which  originates from sending realistic sound pressure level pink noise through  a  wall  and  by applying 
its  transmission curve as a filter. Differences in dip magnitude of 1.5dB and more are found to be audible. 
Shifting the central frequency of the dip from 400Hz to 500 Hz or from 1600Hz to 2500Hz is clearly audible.

Files

2018 ATF - Audibility of coincidence dips and structural resonance dips in acoustic isolation curves.pdf

Files (640.4 kB)

Additional details

Funding

papabuild – Advanced physical-acoustic and psycho-acoustic diagnostic methods for innovation in building acoustics 690970
European Commission