Speech recognition in noise using bilateral open-fit hearing aids: the limited benefit of directional microphones and noise reduction.
Citations
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Cites methods from "Speech recognition in noise using b..."
...6 and 3dB, depending on the specific measurement configurations applied in the studies (Fabry, 2006; Flynn, 2004; Klemp & Dhar, 2008; Kuk et al., 2005b; Magnusson et al., 2013; Valente & Mispagel, 2008), especially when attempts were made to maximize the directional effect at high frequencies....
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...…1.6 and 3dB, depending on the specific measurement configurations applied in the studies (Fabry, 2006; Flynn, 2004; Klemp & Dhar, 2008; Kuk et al., 2005b; Magnusson et al., 2013; Valente & Mispagel, 2008), especially when attempts were made to maximize the directional effect at high frequencies....
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Cites background from "Speech recognition in noise using b..."
..., the most advanced devices provide only modest additional benefits (Humes et al. 1999; Larson et al. 2000; Magnusson et al. 2013; Brons et al. 2014; Cox et al. 2014; Picou et al. 2015)....
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References
1,909 citations
"Speech recognition in noise using b..." refers background or methods in this paper
...Considering the known variability in speech test results, Abbreviations ANOVA Analysis of variance DI Directivity index HA Hearing aid HINT Hearing in noise test IOI-HA International outcome inventory for hearing aids NR Noise reduction PB Phonemically balanced SD Standard deviation SRT Speech recognition threshold this sample size was estimated to be suffi cient for detecting clinically signifi cant differences between conditions....
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...Speech recognition performance was obtained with HINT sentences for the different conditions....
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...Therefore, we used Hagerman ’ s sentences, although these sentences are somewhat unnatural in comparison with everyday sentences such as the HINT sentences....
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...E-mail: lennart.magnusson@neuro.gu.se (Received 14 December 2011; accepted 20 June 2012) ISSN 1499-2027 print/ISSN 1708-8186 online © 2013 British Society of Audiology, International Society of Audiology, and Nordic Audiological Society DOI: 10.3109/14992027.2012.707335 in noise test (HINT) (Nilsson et al, 1994) was used to determine speech recognition thresholds (SRTs) in noise....
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...Speech recognition thresholds were obtained with HINT sentences in four HA conditions; omnidirectional, omnidirectional with NR, directional, and directional with NR. Speech material was presented directly in front of the subjects and noise was presented from three loudspeakers placed at 90 ° , 180 ° , and 270 ° ....
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408 citations
"Speech recognition in noise using b..." refers background or methods in this paper
...Hagerman (1982) developed this test material by recording one original list with a female speaker, and then he compiled the various lists by combining the words differently between the sentences....
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...An improved speech-to-noise ratio of 1 dB corresponds to an improved recognition score of up to 25 percentage points (pp) for Hagerman ’ s sentence test, which has a very steep psychometric function (Hagerman, 1982)....
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...The Swedish speech test material, Hagerman ’ s sentences (Hagerman, 1982), was used to determine SRTs in noise....
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248 citations
232 citations
"Speech recognition in noise using b..." refers background in this paper
...Previous studies have reported a signifi cantly enhanced signal-to-noise ratio can be achieved by using directional microphones (e.g. Hawkins & Yacullo, 1984; Valente et al, 1995; Ricketts & Dahr, 1999; Ricketts et al, 2003)....
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228 citations
Additional excerpts
...Although the slopes of the psychometric functions for speech materials that are comprised by everyday sentences are commonly shallower, e.g. American English HINT (Nilsson et al, 1994): 9.7 pp/dB, and Swedish HINT (Hallgren et al, 2006): 17.9 pp/dB, it is clear that just one dB improvement of the speech-to-noise ratio would make great difference in speech recognition performance....
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...This questionnaire, which originally was developed in English (Cox et al, 2000), has been translated to several other lang uages, including Swedish (Cox et al, 2002)....
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