Websites we've worked on:
Outdoor Sound Propagation
and Remote Sensing
The propagation of sound outdoors has a direct impact on the quality of life in the built and human environment. The intermingling of human activities in modern cities creates a constant conflict between the desire for soundscape quality and the need for transport and commercial activities that make noise. Even in semi-rural areas, distant noise from sources such as motorways can ruin tranquillity. To allow us to control sound outdoors, we first need to be able to understand and predict how sound propagates and interacts with the environment.
We are particularly interested in the effect of changing and turbulent atmosphere on sound. We have a world-class measurement capability, for instance we conducted a world first field trial of sound propagation with simultaneous and detailed measurements of range dependent wind conditions using LIDAR and SODAR. We have a long track record of developing methods for predicting sound propagation, for example we supply the software to QinetiQ Ltd. to use in their helicopter noise prediction model.
We also exploit this knowledge to allow us to monitor meteorological conditions using sound. Acoustic remote sensing (SODAR and RASS) technology allows us to explore issues such as air quality and wind farm siting.
- Correlation techniques for the study of outdoor noise propagation
- Meteorological conditions and their influences on outdoor sound propagation
- Outdoor sound propagation
- Acoustic Signature Control: Enhancement of HELIACT Fast Propagation Module
- A Fast Fortran Module for Sound Propagation and Related Meteorology Prediction
- Research into the influence of atmospheric conditions on the propagation of sound - simulation of sonic profiles
- Monitoring of Aircraft Wake Vortices
- UpWind
- WInd energy Sodar Evaluation (WISE)
- Sound Speed Profile Structure and Variability
- Distributed acoustic array for Antarctic research
- Wind-generated sound from complex objects
- Acoustic tomography of wind and temperature fields
- The inverse problem in acoustic profiling
Our research covers both fundamental and applied work and is funded by research councils, EU and industrial support. For more information contact: y.w.lam@salford.ac.uk