Encontrados 34 documentos, a visualizar página 1 de 4
Pre-restoration characterization of acoustical heritage of Nossa Senhora do Pil...
Menino Allan S. M. Peter Tavares; António P. O. Carvalho; S. Rajagopalan; Satish Jagannath Sharma; Ketak Nachinolkar; José LourençoThe church of Nossa Senhora do Pilar built in 1613 by the Spanish Franciscan Capuchos is part of the Convento do Pilar, Goa. This diminuted sanctuary church with Rococon Mannerist features underwent repairs wherein the original lime mortar mix on its laterite stone walls was replaced by cement plaster - paint coat and ceramic tiles. Besides triggering a salt attack, the replacement of original lime mortar cause...
Acoustics of Modern and Old Museums
António P.O. Carvalho; Hélder J.S. Gonçalves; Luísa M. M. GarciaThe goal of this study is to acoustically characterize typical modern and old museums. Modern museums can easily have a bad acoustic behavior due to the widespread use of very smooth and reflective coatings, hard floors, high-ceilings and very expressive volumes. This situation is not usually seen in "old" museums. Acoustic analyses of two case-studies (the 1999 Contemporary Art Museum of Serralves and the Nati...
Ruído no parque nacional da Peneda-Gerês, Portugal
António P. O. Carvalho; Miguel A. G. PereiraThis study characterizes the soundscape in the Peneda-Geres National Park (Portugal) using the parameters LAeq, LAFmin, LAFmax, LA10, LA50, and LA90, together with data collected at the site, such as the origin and duration of the noise traced. There were LAeq values between 33 and 51 dB and quieter areas were found in isolated locations and noisier near populated areas and water points. The acoustic situation ...
Contributos para o desenvolvimento de uma tinta com características de absorção...
António P. O. Carvalho; Ricardo Santelmo T. GomesIn this study a new paint was developed with sound absorption characteristics. An existing paint was used to produce two variants by the addition of powdered cork and a mixture of granulated cork and powered cork. With these two paints, several different samples were produced to test the influence of the thickness, texture and cork’s granulometry, on coat acoustic performance. The normalized tests were do...
Pre-restoration subjective acoustic comfort in the Goan church of Nossa Senhora...
Menino Allan S. M. Peter Tavares; S. Rajagopalan; Satish J. Sharma; António P. O. CarvalhoThis study at the Church of Nossa Senhora do Pilar, built in 1613 by the Spanish Capuchos Franciscan, investigates the acoustic effect of music on the subjective comfort of a listener in a wor-ship space. The results presented describe the effect of variations in the type of music rendered (in the form of live music from the cello, clarinet and the ensemble) from two music sources sites (the nave and the choir ...
Portuguese Catholic churches as reference acoustical models for heritage Cathol...
Menino Allan S. M. Peter Tavares; António P. O. CarvalhoThe architectural genres of the churches built in Goa (a Portuguese colony in India) during the 16th - 19th century period, are partial derivatives of the Portuguese style considering the affinity of the latter’s architecture and worship ambience with that of the Goan churches. Therefore reference ranges used for the normalization of the measured objective acoustical parameters in the Goan Catholic church...
Acoustics of churches from Portugal and Peru when they were once the same country
Carlos Jiménez Dianderas; Antonio P. O. CarvalhoThis paper compares the interior acoustics of Catholic churches of Portugal and Peru, built in the late 16th and early 17th centuries. In situ measured data of Reverberation Time and other parameters are presented and compared controlling for country.
Acoustic rehabilitation of middle twentieth century portuguese churches
Antonio P. O. Carvalho; Marlene T. Cruz; Glória C. G. PereiraThis paper analyzes two Catholic churches in Portugal (Our Lady of Conception in Porto, and Our Lady of Assumption in Santo Tirso) with acoustic problems related with a very long Reverberation Time and poor speech intelligibility. Both were built in the middle 20th century with a large reverberant interior (volumes of 10,000 and 12,500 m3). The results of in situ acoustic measurements are presented and also com...
A acústica do museu nacional Soares dos Reis, Porto
António P. O. Carvalho; Luísa M. M. GarciaThe main objective of this study is to acoustically characterize the National Museum Soares dos Reis, in Oporto, Portugal. An acoustic analysis of the museum was held using objective parameters measured within the largest showrooms (RASTI, RT, background noise (LA,eq) and NC/NR). A brief subjective analysis by surveys was made after people visited the museum, which evaluated the acoustic quality of the museum. ...
A acústica do museu de Serralves (Porto) entre outros museus modernos
António P. O. Carvalho; Hélder GonçalvesModern museums can easily have a bad acoustic behavior due to the widespread use of very smooth and reflective coatings, high-ceiling and very expressive volumes. This work studies the specific needs of these buildings and recommends optimal values for the parameters of interest (RT, LAeq background noise and RASTI). The Modern Art Museum of Serralves (Porto), was acoustically characterized by in situ measureme...
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