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X Y Z Distance m P1 5. Reverberation time; room acoustics; acoustic shell; computer simulation; diffuser. The values Figure 8 are the result of averaging in three different points on the stage.

It was also necessary for the treatment used not to alter the current appearance of the hall. Moreover, and as was pointed out above, this system can also be used to provide diffused reflections to the area of the public.

To conclude, it should merely be indicated that our positive general evaluation of the results obtained from the work on the Carolina Coronado Theatre, which can be classed as good or even excellent, has been confirmed by the austica view of actors, musicians and the public in the months since the work was carried out.

International Organization for Standardization.

Before the renovation its volume-number of seats ratio and its reverberation time with audience, were far away from some recommended values. The positions of the microphones are showed in the Figure 2five in the stalls, two in the first gallery and two in the second gallery. Dynamic acoustic shell with diffusers in the acoustical treatment of Carolina Coronado Theatre, Almendralejo Badajoz, Spain. Due to its importance, we mention the average values 9 points of measurement of the reverberation time for each one of the octave band between Hz and 4 kHz for the empty hall Figure 3.

acustica arquitectonica

This acoustic configuration was slightly helped by covering lateral walls with acoustic panels. Abstract Carolina Coronado Theatre was inaugurated in This is an open-access article distributed under the terms of the Creative Commons Attribution License. The incorporation of diffuser elements in the acoustic shell gives a substantial improvement in balance and communication between the actors, instruments in the case of music, due to the uniform dispersion of the energy in all directions.


The works plan put in motion by the Government of Extremadura in included: Measurements were made of in its original condition previously to the intervention in order to obtain its acoustic qualities in sufficient detail. A 3-D model of the theatre was created using Autocad on the basis of the graphic documentation provided by the architect responsible for the renovation.

As we can see in the Table 4generally, in the stalls and in the balconies, the greater the distance from the receiver to the source, the lower the value of STI is.

acustica arquitectonica – Equaphon University

Its constructors were probably influenced by the significant demographic and economic growth of the city of Almendralejo, from the second half of the 19 th century, which made possible the construction of buildings for cultural or public activities, having considerable artistic value, such as: Conclusions Room acoustical simulation software has been used to predict the main acoustic parameters of the Carolina Coronado theatre.

Reverberation Arquitectonic and C80, obtained from in situ measurements after treatments, show that the best type of music that could be played in the room is Chamber music. Principles and applications of room acoustics 1 st ed.

Room acoustical simulation software acusticca been used to predict the main acoustic parameters of the Carolina Coronado theatre. As a general comment on the results obtained we will merely emphasise, above all else, the significant reduction achieved in reverberation time, the readings on the STI Figure 6 being an average of 0.

Acoustic shell for theatrical performance One of the novel features of this intervention has been the use of a new concept of acoustic shell based on panels diffusing the sound over the stage, which by this dynamic makes it compatible with theatre activity and other more common uses, achieving different acoustic ambiences.


On the basis of the results obtained, the 3-D model and its acoustic simulation were made with ODEON to give us a detailed analysis of the sound field of the hall on the basis of the acoustic parameters provided.

These results reflect speech intelligibility that is at least satisfactory, according to the recommendation of the EN standard. Two types of source were chosen: These measurements were carried out with the same equipment and in the same conditions as the preliminary measurements to allow comparison of the results obtained.

Final acoustic measurements Having carried out the solutions and treatments described new measurements were made in accordance with ISO International Organization for Standardization, and IEC International Electrotechnical Commission, to check that acoustic behaviour was as expected and that the necessary quality requirements for use as a theatre were complied with.

The receiver-source distance from each positions of the microphones is showed in arquiectonica Table 1.

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This work presents the acoustic evaluation and analysis carried out in the theatre. The arquuitectonica time measured are excessively high, causing the sonority of the hall and, at the same time, an appreciable reduction of the intelligibility of the word and, hence, it is necessary to increase sound absorption significantly at all frequencies, without being able to reduce the volume as has been indicated.

These works acusfica another example of the policy of renovation and rehabilitation of the stages of this region, making it possible for it, to return to its original function as a theatre.

The first of these refers to the original situation of the hall without audience, and the second and third to the hall while unoccupied and occupied with the treatments described, acustida.