ADJUSTABLE CONCERT HALL ACOUSTICS DESIGN STUDY FOR CLASSICAL AND ANGKLUNG MUSIC
The environment of a concert hall has specially designed acoustics intended for musical performances. A concert hall with an adjustable concept is applied to accommodate different acoustic requirements of different types of music. The concert hall’s geometrical design, acoustic simulation, and au...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/55697 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The environment of a concert hall has specially designed acoustics intended for
musical performances. A concert hall with an adjustable concept is applied to
accommodate different acoustic requirements of different types of music. The
concert hall’s geometrical design, acoustic simulation, and auralization processes
were done using CATT-Acoustic v9.1 software. Variations of the concert hall’s
configurations were created based on variable reverberation times. In this
research, the types of music considered are 3 classical music, specifically romantic,
classical, and opera, as well as one of Indonesian traditional music, which is the
angklung music. An adjustable concert hall was designed to accommodate the 4
types of music, where 4 configurations were made with different T-15 reverberation
time values, which are 2.0 s, 1.7 s, 1.5 s, and 1.3 s at 1 kHz. In addition to T-15,
other acoustical parameters considered were C-80, ????????, LF, SPL, G, and IACC,
where simulation results of the 4 configurations fulfilled the required range of
values for each acoustic parameter for all 4 types of music. The impulse response
acquired from the acoustic simulation of the 4 concert hall configurations were
used for auralization process, namely pieces composed by Mahler, Beethoven, and
Mozart, and an angklung music. Auralizations were used in listening tests to obtain
preference from respondents on the 4 types of music towards the designed concert
hall configurations using paired comparison method by online questionnaire.
Listening tests results showed significance in preference towards configuration III
and IV for Beethoven’s piece and configuration IV for the angklung music,
meanwhile for the other 2 pieces there were no significant preference towards any
of the configurations. Based on the analysis done, it was known that respondents’
preferences were mainly affected by the acoustic parameter LF and by the effects
of tone coloration, which created shrill sounds in the auralizations. |
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