Spatial Cues Pada Pengguna Simulasi Implan Koklea Dan Pendengar Normal.

Amelia, Ria Rizky (2022) Spatial Cues Pada Pengguna Simulasi Implan Koklea Dan Pendengar Normal. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengguna implan koklea diketahui memiliki akses yang terbatas terhadap spatial cues. Penelitian ini menganalisis spatial cues dan persepsinya pada pendengar normal dan pengguna simulasi implan koklea. Persepsi terhadap spatial cues dinilai dari performa dalam menentukah arah datang suara dan pemahaman isi kalimat yang didengar. Hasil yang diperoleh menunjukkan bahwa pengguna simulasi implan koklea masih dapat mengakses spatial cues, seperti halnya pendengar normal. Baik pendengar normal maupun pengguna simulasi implan koklea dapat memersepsikan spatial cues berupa ILD dan ITD. Keduanya dapat mengetahui arah datang suara dengan akurat (slope ≈ 1.00 dan offset ≈ 0.00°). Pengguna simulasi implan koklea dapat memahami isi kalimat sebaik pendengar normal (PCW = 113.64 rau) dengan penggunaan coding strategy SPEAK di semua channel atau CIS dengan channel di atas 8. Persepsi terhadap spatial cues pada pendengar normal dan pengguna simulasi implan koklea dapat meningkat dalam kondisi mendengarkan dengan dua telinga dan ketika posisi target-masker terpisah secara spasial. Peningkatan persepsi spatial cues terbesar didapatkan dari efek head shadow (pendengar normal (NH) = 12.96, pengguna simulasi implan koklea (CI) = 59.02), diikuti dengan binaural summation (NH = 5.72, CI = 19.86) dan binaural squelch (NH = 3.76, CI = 7.66).
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Cochlear implant users are known to have limited access to spatial cues. This study investigated the spatial cues and their perception in normal-hearing listeners and cochlear implant simulation users. Perception of spatial cues is assessed for performance in determining the direction of the sound and understanding the speech. The results show that cochlear implant simulation users still have an access to spatial cues, just like normal-hearing listeners. Normal-hearing listeners and cochlear implant simulation users can perceive spatial cues ILD and ITD. Both can accurately identify the direction of the sound (slope ≈ 1.00 and offset ≈ 0.00°). Cochlear implant simulation users can understand the sentences as good as normal-hearing listeners (PCW = 113.64 rau) by using the SPEAK coding strategy in all channel or the CIS coding strategy with channel above 8. Perception of spatial cues in normal-hearing listeners and cochlear implant simulation users can be improved by listening with two ears and spatially separating the target-masker position. The largest improvement in spatial cues perception was obtained from the head shadow effect (normal-hearing (NH) = 12.96, cochlear implant simulation users (CI) = 59.02), followed by binaural summation (NH = 5.72, CI = 19, 86) and binaural squelch (NH = 3.76, CI = 7.66).

Item Type:	Thesis (Other)
Additional Information:	RSF 620.2 Ame s-1 2022
Uncontrolled Keywords:	Implan Koklea, Spatial Cues, Persepsi Spatial Cues. Cochlear Implant, Spatial Cues, Spatial Cues Perception.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7882.S65 Automatic speech recognition.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	11 May 2026 03:42
Last Modified:	11 May 2026 03:42
URI:	http://repository.its.ac.id/id/eprint/133111

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