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  • Cheng, Hsiu-Lien  (2)
  • Chiang, Ming-Chang  (2)
  • English  (2)
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  • English  (2)
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  • 1
    Online Resource
    Online Resource
    Objective Signal Analysis for Investigating Feasibility of Active Noise Cancellation in Hearing Screening
    MDPI AG ; 2022
    In:  Sensors Vol. 22, No. 19 ( 2022-09-27), p. 7329-
    Details
    In: Sensors, MDPI AG, Vol. 22, No. 19 ( 2022-09-27), p. 7329-
    Abstract: With the development of active noise cancellation (ANC) technology, ANC has been used to mitigate the effects of environmental noise on audiometric results. However, objective evaluation methods supporting the accuracy of audiometry for ANC exposure to different levels of noise have not been reported. Accordingly, the audio characteristics of three different ANC headphone models were quantified under different noise conditions and the feasibility of ANC in noisy environments was investigated. Steady (pink noise) and non-steady noise (cafeteria babble noise) were used to simulate noisy environments. We compared the integrity of pure-tone signals obtained from three different ANC headphone models after processing under different noise scenarios and analyzed the degree of ANC signal correlation based on the Pearson correlation coefficient compared to pure-tone signals in quiet. The objective signal correlation results were compared with audiometric screening results to confirm the correspondence. Results revealed that ANC helped mitigate the effects of environmental noise on the measured signal and the combined ANC headset model retained the highest signal integrity. The degree of signal correlation was used as a confidence indicator for the accuracy of hearing screening in noise results. It was found that the ANC technique can be further improved for more complex noisy environments.
    Type of Medium: Online Resource
    ISSN: 1424-8220
    URL: Article
    DOI: 10.3390/s22197329
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2052857-7
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  • 2
    Online Resource
    Online Resource
    Evaluating the hearing screening effectiveness of active noise cancellation technology among young adults: A pilot study
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Journal of the Chinese Medical Association Vol. 86, No. 1 ( 2023-01), p. 105-112
    Details
    In: Journal of the Chinese Medical Association, Ovid Technologies (Wolters Kluwer Health), Vol. 86, No. 1 ( 2023-01), p. 105-112
    Abstract: The population of young adults who are hearing impaired increases yearly, and a device that enables convenient hearing screening could help monitor their hearing. However, background noise is a critical issue that limits the capabilities of such a device. Therefore, this study evaluated the effectiveness of commercial active noise cancellation (ANC) headphones for hearing screening applications in the presence of background noise. In particular, six confounders were used for a comprehensive evaluation. Methods: We enrolled 12 young adults (a total of 23 ears with normal hearing) to participate in this study. A cross-sectional self-controlled study was conducted to explore the effectiveness of hearing screening in the presence of background noise, with a total of 240 test conditions (=3 ANC models × 2 ANC function statuses × 2 noise types × 5 noise levels × 4 frequencies) for each test ear. Subsequently, a linear regression model was used to prove the effectiveness of ANC headphones for hearing screening applications in the presence of background noise with six confounders. Results: The experimental results showed that, on average, the ANC function of headphones can improve the effectiveness of hearing screening tasks in the presence of background noise. Specifically, the statistical analysis showed that the ANC function enabled a significant 10% improvement ( p 〈 0.001) compared with no ANC function. Conclusion: This study confirmed the effectiveness of ANC headphones for young adult hearing screening applications in the presence of background noise. Furthermore, the statistical results confirmed that as confounding variables, noise type, noise level, hearing screening frequency, ANC headphone model, and sex all affect the effectiveness of the ANC function. These findings suggest that ANC is a potential means of helping users obtain high-accuracy hearing screening results in the presence of background noise. Moreover, we present possible directions of development for ANC headphones in future studies.
    Type of Medium: Online Resource
    ISSN: 1726-4901
    URL: Article
    DOI: 10.1097/JCMA.0000000000000832
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
    detail.hit.zdb_id: 2202774-9
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