In october,2015, the 46º Congreso Español de Acústica -TECNIACÚSTICA 2015, the Encuentro Ibérico de Acústica and the EAA European Symposium on Virtual Acoustics and Ambisonics, organised by the Spanish Society of Acoustics (SEA), the Universitat Politècnica de València -UPV- and the Portuguese Acoustical Society -SPA-. Both events event has the support of the European Acoustics Association (EAA) and the International Commission on Acoustics (ICA). During the congress, EXPOACUSTICA 2015, a Technical Exhibition on new products and services of the sector companies will take place.
The group will participate with several communications related with the research project. One of the papers is focuses on the analysis of the global index for assessment of the acoustic quality of these spaces, and the other paper is based on the acoustic assessment of the absorption coefficient of textiles used for certain events as elements of their ephemeral architecture.

On 11th September, some acoustic measurements were carried out at the cathedral in order to determine the acoustic absorption coefficients of several materials such as the stone and the heavy velvet drapery hanged covering a column.

Researches thank the staff of the temple for the facilities provided.

Foto: Measurement session with the PU probe at the Cathedral of Seville.

On September 8th, in-situ measurements of the acoustic absorption coefficients of the ornamentation used on the temple. Specifically, measurements were taken at the altar of the Virgin, placed in the presbytery, which consisted of a red canopied and a baroque gilded shrine, decorated with wax and flowers.

Researches thank the staff of the temple for the facilities provided.

Foto: Measurement session with the PU probe at the Cathedral of Malaga.

On 28th May and 3rd June 2015, measurements of the absorption coefficients with the Zircon and P-U probes of various textile configurations have been carried out inside the Church of the Annunciation.

We again thank Diego Marin for his cordiality and for the facilities provided for the implementation of the measures.

Foto: Measurements with the two both probes in various textile assemblies.

Past 13th May 2015 the first session of measures of absorption coefficients in the Church of the Annunciation in Sevilla was performed. Altarpieces, paintings and textiles were measured using the P-U probe. A second visit is scheduled in the coming days to complete the measures.

The team would like to thank Mr. Diego Marin and Ms. Concepción Fernández, director of the Centre of Cultural Initiatives of the University of Seville (CICUS), for their kind cooperation.

Foto: In-situ measurements of absorption coefficients: Church of the Annunciation.

In the period between 11th March and 28th April 2015, several tests in various rooms of the ETSA of Seville have been carried out to determine the sound absorption coefficients of various material, previously characterized, in order to tune the equipment (Zircon and P-U probes) and set the measurement protocol to be applied in the on-site measures.

Foto: Measurements of different materials for the tuning of the measuring equipment.

On 5-6th March 2015, the researchers, Miguel Galindo and Lidia Alvarez, traveled to the Polytechnic University of Valencia in order to learn about the In-situ absorption meter via pressure and particle velocity sensors, property of the research group led by Alicia Giménez (Virtual Acoustic) who also participates as external researcher on the project.

The group will work with the In-situ absorption meter in the coming weeks to set the measurement protocol.

On 20th February 2015, several researchers of the project team, Miguel Galindo, Alicia Alonso and Lidia Alvarez from the University of Seville and Salvador Luna from the University of Malaga, held a meeting with the Dean and the Archive staff of the Malaga Cathedral, with the aim of gather information about the decoration elements and ephemeral assemblies used due to religious or cultural celebrations in the cathedral. A special permission in order to measure in-situ absorption coefficients during the first week of September 2015, when the Cathedral is decorated in honor of the patron of the city, Santa Maria de la Victoria (8th September), was granted.

That evening, the calibration signal of Zircon device for measuring absorption coefficients was recorded in the anechoic chamber of the Telecommunications Engineering University of Malaga (responsible Salvador Luna).

The research group wants to thank the Dean and all the staff who greeted us, for the good treatment received.