scholarly journals The Acoustics of the Double Elliptical Vault of the Royal Palace of Caserta (Italy)

2021 ◽  
Author(s):  
Umberto Berardi ◽  
Gino Iannace ◽  
Amelia Trematerra
Keyword(s):  
Spatial Distribution ◽  
Seventeenth Century ◽  
Sound Source ◽  
Acoustic Parameters ◽  
Acoustic Characteristics ◽  
Royal Palace

This work investigates the acoustic characteristics of the double elliptical vault, which overlooks the Grand Staircase of the Royal Palace of Caserta (Italy). The Royal Palace was built by the architect Luigi Vanvitelli in the Seventeenth Century and it is the largest royal building in Italy. The double elliptical vault presents a great scenography effect. Inside the vault, on the planking level, musicians used to play for the king and his guests when the royal procession, going up the grand staircase, entered the royal apartments, creating astonishment among the guests who heard the music without understanding from where it was coming. Since the musicians were inside the vault, the long reverberation made the listeners perceive the vault to be enveloped by the music. To investigate this effect, the acoustic characteristics of the double vault were measured, putting the sound source on the planking level of the vault, while the microphones were put along the staircase and in the vestibule towards the royal apartments. Finally, the spatial distribution of several acoustic parameters is evaluated also using architectural acoustic simulations.

scholarly journals The Acoustics of the Double Elliptical Vault of the Royal Palace of Caserta (Italy)

2021 ◽  
Author(s):  
Umberto Berardi ◽  
Gino Iannace ◽  
Amelia Trematerra
Keyword(s):  
Spatial Distribution ◽  
Seventeenth Century ◽  
Sound Source ◽  
Acoustic Parameters ◽  
Acoustic Characteristics ◽  
Royal Palace

This work investigates the acoustic characteristics of the double elliptical vault, which overlooks the Grand Staircase of the Royal Palace of Caserta (Italy). The Royal Palace was built by the architect Luigi Vanvitelli in the Seventeenth Century and it is the largest royal building in Italy. The double elliptical vault presents a great scenography effect. Inside the vault, on the planking level, musicians used to play for the king and his guests when the royal procession, going up the grand staircase, entered the royal apartments, creating astonishment among the guests who heard the music without understanding from where it was coming. Since the musicians were inside the vault, the long reverberation made the listeners perceive the vault to be enveloped by the music. To investigate this effect, the acoustic characteristics of the double vault were measured, putting the sound source on the planking level of the vault, while the microphones were put along the staircase and in the vestibule towards the royal apartments. Finally, the spatial distribution of several acoustic parameters is evaluated also using architectural acoustic simulations.

On the Relations Between Audio Features and Room Acoustic Parameters of Auralizations

2013 ◽  
Vol 135 (6) ◽  
Author(s):  
Salvador Cerdá ◽  
Alicia Giménez ◽  
Radha Montell ◽  
Arturo Barba ◽  
Radu Lacatis ◽  
...  
Keyword(s):  
Room Acoustics ◽  
Subjective Perception ◽  
Audio Signals ◽  
Acoustic Parameters ◽  
Acoustic Characteristics ◽  
Statistical Correlations ◽  
Audio Features ◽  
Musical Characteristics ◽  
Audio Files ◽  
Musical Audio

The usual parameters in room acoustics are used to quantify the acoustic characteristics of rooms and their relation to the subjective perception of transmitted signals. Audio features (calculated with MIRToolbox) have been designed to study the relationships between the characteristics of musical audio files and their subjective perception. Both musical characteristics and acoustic parameters are oriented towards acoustic perception. By using auralizations with calibrated models of auditoriums and tools from the MIRtoolbox it is possible to jointly work with the calculation of audio features and room parameters. In this work, the statistical correlations between C80, STI, D50, EDT, RT and certain audio features have been analyzed. The Pearson r values are higher than 0.8 in all cases. These high correlations enable acoustic parameters to be calculated from the musical characteristics of auralized audio signals.

The acoustics of ancient catacombs in Southern Italy

2020 ◽  
pp. 1351010X2096757 ◽  
Author(s):  
Giuseppe Ciaburro ◽  
Umberto Berardi ◽  
Gino Iannace ◽  
Amelia Trematerra ◽  
Virginia Puyana-Romero
Keyword(s):  
Roman Empire ◽  
Sound Source ◽  
Southern Italy ◽  
Reverberation Time ◽  
Acoustic Measurements ◽  
Acoustic Characteristics ◽  
Christian Religion ◽  
Renaissance Period ◽  
Transmission Index ◽  
Speech Transmission

The catacombs, burial sites for early Christians, were constructed during the Roman Empire until the Christian religion was recognized in 313 AD. The catacombs were cementeries, which were organized according to precise rules and were dug into the ground on several levels, to occupy as little space as possible. The catacombs became places of worship as martyrs were buried in them. The catacombs were then abandoned with the barbarian invasions and the consequent construction of churches inside cities. The catacombs were rediscovered during the Renaissance period and became a place of renewed worship. In the present work, the acoustic characteristics of the catacombs of San Callisto in Rome, San Gennaro in Naples, and Vigna Cassia in Syracuse are discussed. The three selected catacombs differ by type of excavation and geometry. In particular, the catacombs of San Callisto are made of narrow corridors and small rooms; the catacombs of San Gennaro consist of large rooms with niches; the catacombs of Vigna Cassia are partly excavated in the tuff and partially occupy a disused aqueduct. The acoustic measurements were performed using an impulsive sound source. The description of the acoustic characteristics focuses on the reverberation time and the Speech Transmission Index. The results show that the reverberation time was always shorter than 1 second, confirming the reduced reverberation of these environments. Finally, the speech listening characteristics are particularly good, ensuring the suitable conditions for the prayer in these spaces.

scholarly journals Archaeoacoustic Research of Ljubostinja and Naupara Medieval Monastic Churches

2019 ◽  
Vol 5 (1) ◽  
pp. 274-283
Author(s):  
Zorana Đorđević ◽  
Dragan Novković
Keyword(s):  
Impulse Response ◽  
Sound Source ◽  
Religious Practice ◽  
Orthodox Church ◽  
Architectural Style ◽  
Acoustic Parameters ◽  
Acoustical Properties

AbstractThe overall experience of religious practice is significantly affected by the acoustical properties of temples. Divine service is the most important act in the Orthodox Church, which equally demands intelligibility of speech for preaching and as well as adequate acoustics for Byzantine chanting as a form of a song-prayer. In order to better understand and contribute to unlocking the role of sound in these historical sacral spaces, this paper explores the acoustics of two well-preserved Orthodox churches, from Ljubostinja and Naupara monastery, built in the last building period of medieval Serbia (1371–1459). These represent two types of the Morava architectural style – triconch combined with a developed and compressed inscribed cross, respectively. Using EASERA software, we measured the impulse response for two sound source positions – in the altar and in the southern chanting apse, as the main points from which the Orthodox service is carried out. Thus obtained acoustic parameters (RT, EDT, C50 and STI) were further analysed, pointing out the differences in experiencing sound between naos and narthex, as well as how the position of the sound source influenced the experience of sound. Finally, we compared the results with previous archaeoacoustic research of the churches from the same building period.

Intelligibility and the Acoustic Characteristics of Speech in Amyotrophic Lateral Sclerosis (ALS)

1994 ◽  
Vol 37 (3) ◽  
pp. 496-503 ◽  
Author(s):  
Moira Mulligan ◽  
Joseph Carpenter ◽  
Joanne Riddel ◽  
Maureen Kenny Delaney ◽  
Gary Badger ◽  
...  
Keyword(s):  
Amyotrophic Lateral Sclerosis ◽  
Transition Rate ◽  
Transition Rates ◽  
Single Word ◽  
Acoustic Parameters ◽  
Acoustic Characteristics ◽  
Als Patients ◽  
The Relationship ◽  
Lateral Sclerosis

The purpose of this study was to analyze the changes in specific speech parameters in 14 patients, 7 dysarthric and 7 non-dysarthric, with amyotrophic lateral sclerosis (ALS), over a 6-month period. Measurements of single word intelligibility, F2 formant trajectories (extent, duration and rate) and diadochokinetic rate showed decreased performance in dysarthric patients as compared to non-dysarthric patients at baseline. F2 transition rates of less than 4 Hz/msec were seen only in dysarthric ALS patients. A relationship between the F2 transition rate and single word intelligibility was noted for patients with moderate to high intelligibility, but at lower levels of intelligibility the F2 rate reached a plateau despite continued decline in intelligibility. Our results support the need for frequent evaluation of dysarthric ALS patients to better understand the relationship between intelligibility and the acoustic parameters of speech.

Measurement of acoustic characteristics of Japanese Buddhist temples in relation to sound source location and direction

2013 ◽  
Vol 133 (5) ◽  
pp. 2699-2710 ◽  
Author(s):  
Yoshiharu Soeta ◽  
Ryota Shimokura ◽  
Yong Hee Kim ◽  
Tomohiro Ohsawa ◽  
Ken Ito
Keyword(s):  
Sound Source ◽  
Source Location ◽  
Acoustic Characteristics
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