Azmi, Fauzan Fakhrizal (2024) Analisis dan Pemodelan Kinerja Akustik serta Sistem Tata Suara di Graha Sepuluh Nopember ITS guna Meningkatkan Efisiensi Ruang sebagai Multifunction Room. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan akan efisiensi ruang multifungsi untuk pidato dan musik mendorong dilakukannya analisis akustik di Graha Sepuluh Nopember ITS. Evaluasi dan optimalisasi dilakukan melalui pengukuran kondisi existing dan simulasi EASE 4.3 dengan metode steady sound dan impulse response, mengintegrasikan optimalisasi material dan sistem tata suara. Parameter akustik yang dianalisis meliputi Noise Criteria (NC), distribusi Sound Pressure Level (SPL), waktu dengung (RT), Clarity (C80), Definition (D50), dan Speech Transmission Index (STI) sesuai ISO 3382:2009. Berdasarkan pengukuran karakteristik ruang pada frekuensi 1000 Hz menunjukkan distribusi SPL yang belum merata dengan perbedaan antar titik sebesar 4 dB hingga 9,5 dB, waktu dengung sebesar 3,44 detik, rata-rata C80 senilai -2,39 dB, dan rata-rata D50 senilai 38,84%, yang tidak optimal. Dalam kondisi sistem speaker, suara juga kurang memberikan kesan suara dengan waktu dengung sebesar 0,44 detik, rata-rata C80 senilai 0,363 dB, dan rata-rata D50 senilai 40,34% yang kurang optimal. Hasil optimalisasi melalui simulasi EASE 4.3, ruangan dengan volume 44.732,40 m³ ini menunjukkan peningkatan signifikan sesuai ISO. Penambahan material seperti perforated panel, drapes, dan karpet berat menghasilkan distribusi SPL dengan perbedaan antar titik 0,58 dB hingga 3,3 dB dan waktu dengung sebesar 1,69 detik pada kondisi kosong, 1,65 detik pada kondisi setengah penuh, dan 1,59 detik pada kondisi penuh audiens dengan kapasitas 3.000 orang. STI juga meningkat menjadi 0,537 atau 53,7% dan rata-rata C80 sebesar 1,83 dB. Optimalisasi sistem tata suara juga menunjukkan peningkatan dengan perbaikan sudut speaker, menghasilkan interpretasi STI "Cukup" sebesar 91,52% dan "Baik" sebesar 8,5%.
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The need for efficient use of multifunction room for speech and music has prompted an acoustic analysis of the Graha Sepuluh Nopember ITS. Evaluation and optimization were conducted through measurements of existing conditions and EASE 4.3 simulations using the steady sound and impulse response methods, integrating material optimization and sound system design. The acoustic parameters analyzed include Noise Criteria (NC), Sound Pressure Level (SPL) distribution, Reverberation Time (RT), Clarity (C80), Definition (D50), and Speech Transmission Index (STI) according to ISO 3382:2009. Measurements of room characteristics at a frequency of 1000 Hz revealed uneven SPL distribution, with variations between points ranging from 4 dB to 9,5 dB, a reverberation time of 3,44 seconds, an average C80 of -2,39 dB, and an average D50 of 38,84%, indicating suboptimal conditions. Under the speaker system, the sound also failed to achieve optimal results, with a reverberation time of 0,44 seconds, an average C80 of 0,363 dB, and an average D50 of 40,34%. The optimization results obtained through EASE 4.3 simulations for the room, which has a volume of 44.732,40 m³, demonstrated significant improvements following ISO standards. The addition of materials such as perforated panels, drapes, and heavy carpets resulted in an SPL distribution with point-to-point differences ranging from 0,58 dB to 3,3 dB, and a reverberation time of 1,69 seconds in an empty room, 1,65 seconds in a half-filled room, and 1,59 seconds in a fully occupied room with a capacity of 3.000 people. The STI also improved to 0,537 or 53,7%, and the average C80 increased to 1,83 dB. Sound system optimization further showed improvement with adjustments to speaker angles, resulting in an STI interpretation of "Fair" at 91,52% and "Good" at 8,5%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Akustik Ruang, Sistem Tata Suara, Perforated Panel, Gorden, Karpet Berat. Room Acoustics, Sound System, Perforated Panel, Drapes, Heavy Carpet. |
| Subjects: | Q Science > QC Physics > QC221 Acoustics. Sound Q Science > QC Physics > QC851 Coordinates--Measurement. T Technology > T Technology (General) > T57.62 Simulation T Technology > T Technology (General) > T58.8 Productivity. Efficiency T Technology > TH Building construction > TH900+ Construction equipment in building construction |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Fauzan Fakhrizal Azmi |
| Date Deposited: | 12 Aug 2024 08:08 |
| Last Modified: | 12 Aug 2024 08:08 |
| URI: | http://repository.its.ac.id/id/eprint/113958 |
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