Effects of noise and reverberation on speech recognition with variants of a multichannel adaptive dynamic range compression scheme.
Objective: Adaptive compression methods in hearing aids have been developed to maximise audibility while preserving temporal envelope modulations. Increasing the number of channels may improve listening comfort for loud sounds. However, the effects of this on speech recognition in different environm...
| Publicado en: | International Journal of Audiology Vol. 58; no. 10; pp. 661 - 670 |
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| Autores principales: | , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Oct2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=138433719&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 138433719 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Oct2019 vid: 58 iid: 10 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 138433719 138433719 138433719 10.1080/14992027.2019.1617902 138433719 ppf: 661 ppct: 9 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Effects of noise and reverberation on speech recognition with variants of a multichannel adaptive dynamic range compression scheme. aug: au: Rallapalli, Varsha H. Alexander, Joshua M. affil: Department of Speech, Language & Hearing Sciences, Purdue University, West Lafayette, IN, USA sug: subj: Hearing Loss, Sensorineural Therapy Hearing Aids Speech Perception Evaluation Noise Speech Acoustics Human Funding Source Listening Male Female Adult Middle Age Aged Aged, 80 and Over Audiometry, Pure-Tone Air Conduction Acoustic Impedance Tests Bone Conduction Signal Processing, Computer Assisted Acoustic Stimulation Auditory Threshold Repeated Measures Analysis of Variance Post Hoc Analysis Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Male Female ab: Objective: Adaptive compression methods in hearing aids have been developed to maximise audibility while preserving temporal envelope modulations. Increasing the number of channels may improve listening comfort for loud sounds. However, the effects of this on speech recognition in different environmental conditions are unknown. This study evaluated the effects of different channel architectures and adaptive compression properties on speech recognition in noise and reverberation. Design: Sentences were mixed with steady or modulated noise at three signal-to-noise ratios (SNRs). These were processed with and without reverberation and amplified with four proprietary adaptive compression methods or linear amplification. Study sample: 36 listeners with mild to moderately-severe hearing loss. Results: Adaptive compression improved speech recognition over linear amplification to a small extent, with no significant differences among methods using 4 or 24 channels or a combination thereof. These effects remained across the different background noise and reverberation conditions. Conclusions: Increasing the number of channels does not negatively affect speech recognition in noise and reverberation when adaptive compression is used. If future research shows that increasing the number of channels improves listening comfort for loud sounds, these results indicate that adaptive compression methods with as many as 24 channels are viable options for hearing aids. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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