Impulse-response and reverberation-decay measurements made by using pseudorandom sequence

A detailed account of the cross-correlation method involving the use of a periodic pseudorandom sequence for impulse- response and reverberation-decay measurements is presented. Experimental results are also provided to demonstrate the potential of this method for making measurements in a very noisy environment.L'auteur expose de facon d\ue9taill\ue9e la m\ue9thode de corr\ue9lation crois\ue9e comportant l'utilisation d'une s\ue9quence pseudo-al\ue9atoire p\ue9riodique de mesures de la r\ue9ponse en impulsion et de l'affaiblissement de la r\ue9verb\ue9ration. Il pr\ue9sente aussi les r\ue9sultats d'exp\ue9riences visant \ue0 montrer que cette m\ue9thode permet d'effectuer des mesures dans un environnement tr\ue8s bruyant.Was also presented at the ASA Meeting in Honolulu in 1988Peer reviewed: YesNRC publication: Ye