The measurement of the acoustic properties of a material using impulsive methods can be performed through low-cost instruments, such as computers and good quality soundcards. In the measurement chain an acoustic source and a microphone are also involved. Since they cause most of the non-linearities, these items can be considered the weak link in the chain. In this paper different ways of equalizing the measurement chain are shown and their influence on the final result is discussed.
Sound absorption measurement using MLS method. How much is the final result affected by the non-linearities of the measurement chain ? / P. Guidorzi; M. Garai. - ELETTRONICO. - 1:(2007), p. paper RBA-1.... (Intervento presentato al convegno International Congress on Acoustics I.C.A. 2007 - Acoustics for the 21st century tenutosi a Madrid nel 2-7 September 2007).
Sound absorption measurement using MLS method. How much is the final result affected by the non-linearities of the measurement chain ?
GUIDORZI, PAOLO;GARAI, MASSIMO
2007
Abstract
The measurement of the acoustic properties of a material using impulsive methods can be performed through low-cost instruments, such as computers and good quality soundcards. In the measurement chain an acoustic source and a microphone are also involved. Since they cause most of the non-linearities, these items can be considered the weak link in the chain. In this paper different ways of equalizing the measurement chain are shown and their influence on the final result is discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
