![]() Moreover, these theatres are often exposed to urban modern background noise. Nowadays, these unroofed theatres, whose walls behind and at the sides of the stage have rarely been restored, are often criticized for the weak sound strength. Although the acoustics of these theatres for modern use performances may be challenging, this cultural heritage offers a unique experience to the audience who can assist to a performance on the same seats once used by Romans. Acoustic measurements show that the acoustics of these theatres does not always support the listening of music, which is common in modern performances. Mots clefs: Distribution de l'´ energie sonore, acoustique des lieux de culte, simulation acoustique géométriqueĪncient Roman theatres represent a unique cultural heritage which is still used nowadays to host a variety of cultural activities and performances. Tous les traitements acoustiques ontété validés en utilisant un modèle numérique, calibré avec les valeurs mesurées, et un logiciel de simulation acoustique afin d'estimer l'effet global de la proposition d'amélioration de la conception acoustique. Un ensemble de panneaux réfléchissants suspendus au-dessus des positionnements des musiciens améliore la clarité C 80 et les tendances de la force sonore G en apportantà l'´ eglise une qualité acoustique comparablè a celle d'une salle de concert. En se basant sur l'´ etat de l'art, une analyse précise de la distribution spatiale de l'´ energie sonore a conduit au développement d'une intervention acoustique non invasive du point de vue volumétrique. L'acoustique actuelle de la salle a ´ eté caractérisée au moyen d'une campagne de mesures acoustiques selon les exigences des normes techniques. La présenté etude concerne la transformation acoustique d'une ancienné eglise en salle de musique de chambre. All the acoustic treatments were validated using a Geometrical Acoustic (GA) numerical model, calibrated through the measured values, in order to estimate the effect of the whole improvement proposal. An array of hanging reflecting panels over the musicians positions improves sound clarity C 80 and sound strength G trends giving to the church an acoustic quality worthy of a concert hall. ![]() Focusing on literature theories, an accurate sound energy spatial distribution analysis led to the development of an acoustic intervention, not-invasive from a volumetric point of view. The current status of the hall was classified with an acoustic measurements campaign according to technical standards requirements. The present work concerns the acoustic design for a former church converted into a chamber music hall. Finally, the benefits of different acoustical treatments which are respectful of the aesthetic and historical value of this cultural heritage are discussed. Different acoustical treatments are then considered and simulations are used to determine the related acoustical improvements. The measurements were then used to calibrate and validate a computer simulation model. ![]() Field measurements were undertaken to evaluate the acoustical performance of the empty chapel. Since this chapel is currently being used for meetings and music chamber concerts, the acoustical characteristics of the chapel, originally used for religious purposes, are investigated. This paper deals with this topic in an UNESCO designated world heritage site, the Palatine Chapel of the Royal Palace in Caserta, Italy. In fact, modern needs may require acoustical interventions in contrast with the preservation issues of the cultural heritage. ![]() The modern use of ancient heritage sites can be, to say the least, challenging from an acoustical perspective. ![]()
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