Measuring the effect of adaptive directionality and split processing on noise acceptance at multiple input levels.
This study used the multi-level Tracking of Noise Tolerance (TNT) test to compare Augmented Focus (AF) or split processing over non-AF processing with adaptive directionality (non-AF-dirm) and with an omnidirectional microphone (non-AF-omni). This was a single-blind, within-subject repeated measures...
| Publicado en: | International Journal of Audiology Vol. 62; no. 1; pp. 21 - 30 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Jan2023
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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=161131467&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 161131467 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Jan2023 vid: 62 iid: 1 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 161131467 154596964 161131467 161131467 10.1080/14992027.2021.2022789 161131467 ppf: 21 ppct: 9 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Measuring the effect of adaptive directionality and split processing on noise acceptance at multiple input levels. aug: au: Kuk, Francis Slugocki, Christopher Davis-Ruperto, Neal Korhonen, Petri affil: WS Audiology, Office of Research in Clinical Amplification (ORCA-USA), Lisle, IL, USA sug: subj: Hearing Disorders Therapy Hearing Aids Speech Perception Evaluation Auditory Threshold Evaluation Noise Task Performance and Analysis Human Single-Blind Studies Repeated Measures Power Analysis Adult Middle Age Aged Aged, 80 and Over Male Female Psychological Tests Descriptive Statistics Speech Discrimination Tests Hearing Aid Fitting Scales Speech Reception Threshold Test Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Male Female ab: This study used the multi-level Tracking of Noise Tolerance (TNT) test to compare Augmented Focus (AF) or split processing over non-AF processing with adaptive directionality (non-AF-dirm) and with an omnidirectional microphone (non-AF-omni). This was a single-blind, within-subject repeated measures design. Nineteen listeners with a mild-to-moderate hearing loss. The listeners' task was to determine their tolerable noise level (TNL) in the sound-field at four fixed speech levels (i.e. 62, 68, 75, and 85 dB SPL) in the unaided condition and the different aided conditions. The speech passages were presented from 0° while a continuous speech-shaped noise was presented from 180°. Each condition was tested twice, each in a different counterbalanced order. AF improved TNL by an average of 2.9 dB over non-AF-dirm. Adaptive directionality improved the aided TNL by 4.7 dB over the non-AF-omni condition. The unaided TNL was similar to the aided non-AF-omni TNL. Whereas a stable TNL was reached in 20–30 s for non-AF-dirm, it took AF < 15 s to reach a stable TNL at all input levels. This study shows that AF allowed 2.9 dB of signal-to-noise ratio (SNR) improvement over that of non-AF-dirm and 7.6 dB over the aided non-AF-omni condition. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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