Effects of Transient Noise Reduction Algorithms on Speech Intelligibility and Ratings of Hearing Aid Users

DiGiovanni, Jeffrey J.; Davlin, Erin A.; Nagaraj, Naveen K.

doi:10.1044/1059-0889(2011/10-0007)

Cited by 12 publications

(25 citation statements)

References 30 publications

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“…Such impulse sounds may not reduce the hearing aid gain fast enough 5 to affect the perceived sound level; this is unrelated to the gain at high levels. However, due to the time delay required for the signal processing, a transient detection and reduction is technically possible and is also implemented in some modern hearing aids (DiGiovanni, 2011). Consequently, although not optimal, the categorization of simple and advanced signal processing served the aim of the current study.…”

Section: Discussionmentioning

confidence: 99%

Sounds perceived as annoying by hearing-aid users in their daily soundscape

Skagerstrand

Stenfelt

Arlinger

et al. 2014

International Journal of Audiology

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Section: Discussionmentioning

confidence: 99%

Sounds perceived as annoying by hearing-aid users in their daily soundscape

Skagerstrand

Stenfelt

Arlinger

et al. 2014

International Journal of Audiology

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“…6,7 Different studies with hearing aid users have yielded somewhat inconclusive outcomes regarding their effectiveness. 4,8-10 …”

Section: Introductionmentioning

confidence: 99%

Transient Noise Reduction in Cochlear Implant Users: A Multi-Band Approach

Dyballa

Hehrmann²,

Hamacher³

et al. 2016

Audiology Research

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A previously-tested transient noise reduction (TNR) algorithm for cochlear implant (CI) users was modified to detect and attenuate transients independently across multiple frequency-bands. Since speech and transient noise are often spectrally distinct, we hypothesized that benefits in speech intelligibility can be achieved over the earlier single-band design. Fifteen experienced CI users (49 to 72 years) were tested unilaterally using pre-processed stimuli delivered directly to a speech processor. Speech intelligibility in transient and soft stationary noise, subjective sound quality and the recognition of warning signals was investigated in three processing conditions: no TNR (TNRoff), single-band TNR (TNRsgl) and multi-band TNR (TNRmult). Notably, TNRmult improved speech reception thresholds (SRTs) in cafeteria noise and office noise by up to 3 dB over both TNRoff and TNRsgl, and yielded higher comfort and clarity ratings in cafeteria noise. Our results indicate that multi-band transient noise reduction may be advantageous compared to a single-band approach, and reveal a substantial overall potential for TNR to improve speech perception and listening comfort in CI users.

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“…These findings can be explained by the fact that the noise reduction algorithms attenuate the effort to listen, making aversive sounds less uncomfortable, improving the comfort of sounds, in general (15,16,17,18) and providing better sound quality (19,20) . Thus, the cognitive ability of the individuals is released (21) to perform auditory closure and, consequently, increase the chances of improving speech understanding, based on the context (22) .…”

Section: Discussionmentioning

confidence: 99%

Percepção de fala no ruído em idosos usuários de próteses auditivas com diferentes microfones e algoritmo de redução de ruído

Santos

Costa

2016

Audiol., Commun. Res.

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Purpose: To evaluate speech recognition in noise on elderly, new users of hearing aids with directional microphones and noise reduction, and check which feature provides better speech intelligibility. Methods: The participants were 36 individuals between 60 and 87 years old with sensorineural hearing loss from mild to moderately severe. The Sentence List test in Brazilian Portuguese was applied, in sound field, obtaining the Sentence Recognition in Noise Percentage Rates (SRNPR) with hearing aids, with four different settings: omnidirectional microphone (OM); noise reduction and omnidirectional microphone (NR + OM); directional microphone (DM); and the noise reduction and directional microphone (NR + DM). Results: When speech and noise focused at 0°/0° azimuth, SRNPR median scores were 76.74% with the use of OM; 84.95% with NR + OM; 84.40% with DM and 86.63% with NR + DM. When comparing results, there were differences between OM x DM; OM x NR + DM; NR + OM and DM; NR+ OM and NR+ DM. When noise focused at 0°/180° azimuth, the SRNPR median were 77.4% with the use of OM; 83.79% with NR + OM; 89.46% with DM and 91.9 with NR + DM. When comparing results, there were differences between the performances with OM e DM; OM and NR + DM; NR + OM and DM; and NR + OM and NR + DM. Conclusion: Better results were found with the use of NR and DM in both situations of assessment, however, in the situation with noise at 0°/180° azimuth the DM provided a more satisfactory performance. Keywords

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Effects of Transient Noise Reduction Algorithms on Speech Intelligibility and Ratings of Hearing Aid Users

Abstract: While improvements were limited to certain conditions, specifically those with the chair clang transient and/or multitalker babble, TNR appears to offer an incremental step in improving the listening experience for hearing aid users.

Cited by 12 publications

References 30 publications

Sounds perceived as annoying by hearing-aid users in their daily soundscape

Sounds perceived as annoying by hearing-aid users in their daily soundscape

Transient Noise Reduction in Cochlear Implant Users: A Multi-Band Approach

Percepção de fala no ruído em idosos usuários de próteses auditivas com diferentes microfones e algoritmo de redução de ruído

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