Nadiroh, Ainun (2018) Efektivitas Babble Speech Masker Terhadap Just Noticeable Difference Untuk Peningkatan Privasi Pada Rumah Sakit Dengan Tipologi Perkantoran Tapak Terbuka. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Masalah utama yang sering terjadi di perkantoran tapak terbuka adalah gangguan bunyi yang dapat dengan mudah merusak konsentrasi kerja sekaligus hilangnya privasi bicara. Salah satu metode yang sedang dikembangkan untuk mengurangi gangguan yang terjadi di perkantoran tapak terbuka adalah sound masking yaitu menutup sumber bising utama dengan bunyi-bunyian yang lain. Penelitian ini mengusulkan metode sound masking dengan menggunakan penilaian just noticeable difference yang belum pernah dilakukan oleh peneliti sebelumnya (Ebbisou, dkk., 2014 dan Zaglauer, dkk., 2017), dimana metode ini menggunakan variasi level masker untuk mengetahui ambang efektif masker ketika masker berupa suara gabungan percakapan manusia (babble speech) digunakan. Eksperimen dilakukan dengan memvariasikan 4 kondisi, diantaranya: eksperimen target pria – masker pria, target pria – masker wanita, target wanita – masker pria, dan target wanita – masker wanita. Pengujian efektivitas masker dilakukan dalam skala laboratorium dengan memodelkan kondisi audial ruang pemeriksaan Poli Audiologi RSUD Dr. Soetomo. Penilaian tingkat privasi diuji berdasarkan pengujian objektif dan subjektif yang kemudian digunakan untuk menentukan nilai ambang perbedaan level masker (just noticeable difference). Hasil penelitian menunjukkan bahwa indeks kejelasan wicara yang bernilai > 0.5 berada pada ambang perbedaan sebesar 69 dBA untuk eksperimen target pria – masker pria dan target pria – masker wanita, sedangkan nilai 64 dBA didapat untuk eksperimen target wanita – masker pria dan target wanita – masker wanita. Hal ini menunjukkan bahwa pendengar akan memperoleh kondisi privasi ketika masker yang diterapkan memiliki nilai lebih besar dari 69 dBA (untuk pria) dan 64 dBA (untuk wanita).
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Speech distraction is the main problem that often happens in open-plan offices. It easily reduces concentration as well as causes the loss of speech privacy. One method that is being developed to reduce the disturbance that occurs in open-plan office is sound masking. It covers the source of noise with the other sounds. This study proposes a sound masking method using just noticeable difference assessment. It has never been done by previous studies (Ebbisou, et al., 2014 and Zaglauer, et al., 2017). This method used variations in masker level to determine the effective threshold of masker when the used masker was babble speech. The experiments consisted of 4 conditions. They were male target-male masker, male target-female masker, female target-male masker, and female target-female masker. The tests of masker effectiveness were carried out in the laboratory by modeling the audial conditions of the Audiology examination room at RSUD Dr. Soetomo. The privacy level assessments were tested based on objective and subjective testing which used to determine the threshold of difference level (just noticeable difference). The results showed that the speech clarity index worth > 0.5 were at the threshold of a difference of 69 dBA for male-male experiment and male-female experiment, while 64 dBA values were obtained for female-male experiment and female-female experiment. It showed that listener would get a privacy condition when applied masker has a value greater than 69 dBA (for male) and 64 dBA (for female).
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | RTF 620.23 Nad e-1 2019 |
| Uncontrolled Keywords: | babble speech, just noticeable difference, perkantoran tapak terbuka, privasi percakapan |
| Subjects: | Q Science > QC Physics > QC221 Acoustics. Sound T Technology > TD Environmental technology. Sanitary engineering > TD892 Noise control |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30101-(S2) Master Thesis |
| Depositing User: | Ainun Nadiroh |
| Date Deposited: | 10 Jun 2021 01:23 |
| Last Modified: | 10 Jun 2021 01:23 |
| URI: | http://repository.its.ac.id/id/eprint/60438 |
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