The paper deals with the results of research concerning the acoustical properties of masonry walls tested both in a laboratory with suppressed flanking transmission and in a laboratory with relevant flanking transmission (in situ). Measurements were aimed at evaluating the difference between Sound Reduction Index in laboratory and in situ and the amount of flanking transmission through different lateral paths. The results confirm the reliability of the flanking transmission calculation model defined by the European Norm and give a contribution to the set-up of the new method of measurement of the vibration reduction index.
COMPARISON BETWEEN LABORATORY AND IN SITU SOUND REDUCTION INDEX MEASUREMENTS / S. SECCHI; P. FAUSTI. - STAMPA. - (2001), pp. 1-2. (Intervento presentato al convegno INTERNATIONAL CONGRESS OF ACOUSTICS tenutosi a Rome).
COMPARISON BETWEEN LABORATORY AND IN SITU SOUND REDUCTION INDEX MEASUREMENTS
SECCHI, SIMONE;
2001
Abstract
The paper deals with the results of research concerning the acoustical properties of masonry walls tested both in a laboratory with suppressed flanking transmission and in a laboratory with relevant flanking transmission (in situ). Measurements were aimed at evaluating the difference between Sound Reduction Index in laboratory and in situ and the amount of flanking transmission through different lateral paths. The results confirm the reliability of the flanking transmission calculation model defined by the European Norm and give a contribution to the set-up of the new method of measurement of the vibration reduction index.
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