Benefit of contralateral routing of signals for unilateral cochlear implant users
| Autor: | Jeroen J. Briaire, D. C. P. B. M. van Barneveld, Johan H. M. Frijns, Wim Soede, Cees H. Taal |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
Speech perception Acoustics and Ultrasonics Microphone Computer science Hearing loss medicine.medical_treatment Acoustics Audiology Hearing Loss Unilateral 01 natural sciences 03 medical and health sciences 0302 clinical medicine Hearing Arts and Humanities (miscellaneous) Cochlear implant 0103 physical sciences medicine Humans Active listening 030223 otorhinolaryngology 010301 acoustics Auditory Threshold medicine.disease Noise Cochlear Implants Speech Perception Routing (electronic design automation) medicine.symptom Unilateral hearing loss |
| Zdroj: | The Journal of the Acoustical Society of America, 140(1), 393-401 |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.4955307 |
| Popis: | One way to improve speech understanding in noise for HI with a unilateral hearing loss is by contralateral routing of signals (CROS). Such a CROS-system captures sounds with an additional microphone at the worst hearing ear and transmits these to the better one. The better ear is then provided with a mix of signals originating from both ears. The goal of this study is to quantify the effect of a CROS-system on speech reception thresholds (SRTs) with unilaterally implanted CI-users in diffuse and directional noise as a function of speaker location. Listening tests are performed and an accurate directional intelligibly model is proposed used for further analysis. In diffuse noise it is concluded that the use of a CROS system results in a maximum gain in SRT of 7.9 dB when speech comes from the CROS side compared to a maximum loss in SRT of 2.1 dB when speech comes from the implanted side. In the case of directional noise, the effect of the CROS is symmetric and the maximum loss or gain in SRT was around 9 dB. The study therefore shows a clear potential of using the CROS system in diffuse noise. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|