Research areas
Psychoacoustics
Introduction
In this research project, which is a cooperation between the
Department
of Mining Engineering III
and the ITA, parameters have been studied
that contribute to the annoyance of blasting noise from rock quarriers.
Therefore, several parameters are determined from measured air-borne or
structure-borne sound signals (e.g., portions of noise and ground vibrations,
temporal and spectral aspects) and compared with subjective judgements
from both field and laboratory tests. An important task is to find out
if the sound inside a building is due to air-borne transmission ("primary
noise") or structure-borne transmission and vibration excitation ("secondary
noise"). Another goal of this work is to propose sound-abatement measures
for blasting-noise immissions.
Progress
Measurements of airborne and structure-borne sound signals
Analysis of measured data with respect to
- limits,
- noise and vibration components,
- primary and secondary noise components
Analysis of annoyance of sound signals by
- psychoacoustic quantities,
- a listening test.
Results: Contribution to DAGA 2002 (PDF, in German)
Questioning of inhabitants, evaluation and comparison with measured data
Technical advice for the reduction of blasting-noise immissions
Final Report completed
Project finished!
