Trends in Hearing最新文献

Development and Validation of a Self-Administered Online Hearing Test. 自我管理的在线听力测试的开发和验证。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-03-18 DOI: 10.1177/23312165251317923

Charlotte Vercammen, Olaf Strelcyk

{"title":"Development and Validation of a Self-Administered Online Hearing Test.","authors":"Charlotte Vercammen, Olaf Strelcyk","doi":"10.1177/23312165251317923","DOIUrl":"10.1177/23312165251317923","url":null,"abstract":"We describe the development and validation of a self-administered online hearing test, which screens for hearing loss and provides an estimated audiogram. The hearing test computes test results from age, self-reported hearing abilities, and self-assessed pure-tone thresholds. It relies on regression, Bayesian and binary classification, leveraging probabilistic effects of age as well as interfrequency and interaural relationships in audiograms. The test was devised based on development data, collected prospectively in an online experiment from a purposive convenience sample of 251 adult American, Australian, Canadian, and Swiss participants, 58% of whom had hearing loss. Later, we externally validated the hearing test. Validation data were collected prospectively from a representative sample of 156 adult Belgian participants, 15% of whom had hearing loss. Participants completed the hearing test and audiometric assessments at home. The results for the primary screening outcome showed that the hearing test screened for mild hearing losses with a sensitivity of 0.83 [95%-confidence interval (CI): 0.65, 0.96], specificity of 0.94 [CI: 0.89, 0.98], positive predictive value of 0.70 [CI: 0.57, 0.87], and negative predictive value of 0.97 [CI: 0.94, 0.99]. Results for the secondary audiogram estimation outcome showed mean differences between estimated and gold standard hearing thresholds ranging from 2.1 to 12.4 dB, with an average standard deviation of the differences of 14.8 dB. In conclusion, the hearing test performed comparably to state-of-the-art hearing screeners. This test, therefore, is a validated alternative to existing screening tools, and, additionally, it provides an estimated audiogram.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251317923"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11920986/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustically Transparent Hearing Aids Increase Physiological Markers of Listening Effort. 声学透明助听器增加听力努力的生理指标。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-04-03 DOI: 10.1177/23312165251333225

Markus Kemper, Florian Denk, Hendrik Husstedt, Jonas Obleser

{"title":"Acoustically Transparent Hearing Aids Increase Physiological Markers of Listening Effort.","authors":"Markus Kemper, Florian Denk, Hendrik Husstedt, Jonas Obleser","doi":"10.1177/23312165251333225","DOIUrl":"10.1177/23312165251333225","url":null,"abstract":"While hearing aids are beneficial in compensating for hearing loss and suppressing ambient noise, they may also introduce an unwanted processing burden to the listener's sensory and cognitive system. To investigate such adverse side effects, hearing aids may be set to a 'transparent mode', aiming to replicate natural hearing through the open ear as best as possible. Such transparent hearing aids have previously been demonstrated to exhibit a small but significant disadvantage in speech intelligibility, with less conclusive effects on self-rated listening effort. Here we aimed to reproduce these findings and expand them with neurophysiological measures of invested listening effort, including parietal alpha power and pupil size. Invested listening effort was measured across five task difficulties, ranging from nearly impossible to easy, with normal-hearing participants in both aided and unaided conditions. Results well reproduced a hearing aid disadvantage for speech intelligibility and subjective listening effort ratings. As to be expected, pupil size and parietal alpha power followed an inverted u-shape, peaking at moderate task difficulties (around SRT50). However, the transparent hearing aid increased pupil size and parietal alpha power at medium task demand (between SRT20 and SRT80). These neurophysiological effects were larger than those observed in speech intelligibility and subjective listening effort, respectively. The results gain plausibility by yielding a substantial association of individual pupil size and individual parietal alpha power. In sum, our findings suggest that key neurophysiological measures of invested listening effort are sensitive to the individual additional burden on speech intelligibility that hearing aid processing can introduce.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251333225"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11970058/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143781706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Speech Recognition and Noise Adaptation in Realistic Noises. 现实噪声中的语音识别与噪声适应。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-05-15 DOI: 10.1177/23312165251343457

Miriam I Marrufo-Pérez, Enrique A Lopez-Poveda

{"title":"Speech Recognition and Noise Adaptation in Realistic Noises.","authors":"Miriam I Marrufo-Pérez, Enrique A Lopez-Poveda","doi":"10.1177/23312165251343457","DOIUrl":"10.1177/23312165251343457","url":null,"abstract":"The recognition of isolated words in noise improves as words are delayed from the noise onset. This phenomenon, known as adaptation to noise, has been mostly investigated using synthetic noises. The aim here was to investigate whether adaptation occurs for realistic noises and to what extent it depends on the spectrum and level fluctuations of the noise. Forty-nine different realistic and synthetic noises were analyzed and classified according to how much they fluctuated in level over time and how much their spectra differed from the speech spectrum. Six representative noises were chosen that covered the observed range of level fluctuations and spectral differences but could still mask speech. For the six noises, speech reception thresholds (SRTs) were measured for natural and tone-vocoded words delayed 50 (early condition) and 800 ms (late condition) from the noise onset. Adaptation was calculated as the SRT improvement in the late relative to the early condition. Twenty-two adults with normal hearing participated in the experiments. For natural words, adaptation was small overall (mean = 0.5 dB) and similar across the six noises. For vocoded words, significant adaptation occurred for all six noises (mean = 1.3 dB) and was not statistically different across noises. For the tested noises, the amount of adaptation was independent of the spectrum and level fluctuations of the noise. The results suggest that adaptation in speech recognition can occur in realistic noisy environments.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251343457"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12081978/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144081428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustic Realism of Clinical Speech-in-Noise Testing: Parameter Ranges of Speech-Likeness, Interaural Coherence, and Interaural Differences. 临床语音噪声测试的声学真实性：语音相似、耳间连贯和耳间差异的参数范围。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-05-06 DOI: 10.1177/23312165251336625

S Theo Goverts, Virginia Best, Julia Bouwmeester, Cas Smits, H Steven Colburn

{"title":"Acoustic Realism of Clinical Speech-in-Noise Testing: Parameter Ranges of Speech-Likeness, Interaural Coherence, and Interaural Differences.","authors":"S Theo Goverts, Virginia Best, Julia Bouwmeester, Cas Smits, H Steven Colburn","doi":"10.1177/23312165251336625","DOIUrl":"https://doi.org/10.1177/23312165251336625","url":null,"abstract":"Speech-in-noise testing is a valuable component of audiological examination that can provide estimates of a listener's ability to communicate in their everyday life. It has long been recognized, however, that the acoustics of real-world environments are complex and variable and not well represented by a typical clinical test setup. The first aim of this study was to quantify real-world environments in terms of several acoustic parameters that may be relevant for speech understanding (namely speech-likeness, interaural coherence, and interaural time and level differences). Earlier acoustic analyses of binaural recordings in natural environments were extended to binaural re-creations of natural environments that included conversational speech embedded in recorded backgrounds and allowed a systematic manipulation of signal-to-noise ratio. The second aim of the study was to examine these same parameters in typical clinical speech-in-noise tests and consider the \"acoustic realism\" of such tests. We confirmed that the parameter spaces of natural environments are poorly covered by those of the most commonly used clinical test with one frontal loudspeaker. We also demonstrated that a simple variation of the clinical test, which uses two spatially separated loudspeakers to present speech and noise, leads to better coverage of the parameter spaces of natural environments. Overall, the results provide a framework for characterizing different listening environments that may guide future efforts to increase the real-world relevance of clinical speech-in-noise testing.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251336625"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12059433/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144062910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Noise Reduction on Ocular Markers of Listening Effort in Hearing Aid Users in Darkness and Ambient Light. 降噪对助听器使用者在黑暗和环境光下听力努力的眼部指标的影响。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-04-29 DOI: 10.1177/23312165251336652

Jessica Herrmann, Lorenz Fiedler, Dorothea Wendt, Sébastien Santurette, Hendrik Husstedt, Tim Jürgens

{"title":"Influence of Noise Reduction on Ocular Markers of Listening Effort in Hearing Aid Users in Darkness and Ambient Light.","authors":"Jessica Herrmann, Lorenz Fiedler, Dorothea Wendt, Sébastien Santurette, Hendrik Husstedt, Tim Jürgens","doi":"10.1177/23312165251336652","DOIUrl":"https://doi.org/10.1177/23312165251336652","url":null,"abstract":"The combination of directional microphones and noise reduction (DIR + NR) in hearing aids offers substantial improvement in speech intelligibility and reduction in listening effort in spatial acoustic scenarios. Pupil dilation can be used to infer ocular markers of listening effort. However, pupillometry is also known to crucially depend on luminance. The present study investigates the effects of a state-of-the-art DIR + NR algorithm (implemented in commercial hearing aids) on pupil dilation of hearing aid users both in darkness and ambient light conditions. Speech intelligibility and peak pupil dilations (PPDs) of 29 experienced hearing aid users were measured during a spatial speech-in-noise-task at a signal-to-noise ratio (SNR) matching the individual's speech reception threshold. While speech intelligibility improvements due to DIR + NR were substantial (about 35 percentage points) and independent of luminance, PPDs were only significantly reduced due to DIR + NR in ambient light, but not in darkness. This finding suggests that the reduction in PPD due to DIR + NR (most likely through improvement in SNR) is dependent on luminance and should be interpreted with caution as a marker for listening effort. Relations of reduction in PPD due to DIR + NR in ambient light to subjectively reported long-term fatigue, age, and pure-tone average were not statistically significant, which indicates that all patients benefitted similarly in listening effort from DIR + NR, irrespective of these patient-specific factors. In conclusion, careful control of luminance needs to be taken in hearing aid studies inferring listening effort from pupillometry data.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251336652"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12041677/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144043707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Limitations on Temporal Processing by Cochlear Implant Users: A Compilation of Viewpoints. 人工耳蜗使用者对时间加工的限制：观点汇编。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-03-17 DOI: 10.1177/23312165251317006

Robert P Carlyon, John M Deeks, Bertrand Delgutte, Yoojin Chung, Maike Vollmer, Frank W Ohl, Andrej Kral, Jochen Tillein, Ruth Y Litovsky, Jan Schnupp, Nicole Rosskothen-Kuhl, Raymond L Goldsworthy

引用次数: 0

Closedness of Acoustic Coupling and Audiological Measures Are Associated with Individual Speech-in-Noise Benefit From Noise Reduction in Hearing Aids. 声学耦合的封闭性和听觉测量与助听器降噪带来的个人噪声中言语效益有关。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-03-29 DOI: 10.1177/23312165251325983

Tim Jürgens, Peter Ihly, Jürgen Tchorz, Takanori Nishiyama, Chiemi Tanaka, Daisuke Suzuki, Seiichi Shinden, Tsubasa Kitama, Kaoru Ogawa, Johannes Zaar, Søren Laugesen, Gary Jones, Marianna Vatti, Sébastien Santurette

{"title":"Closedness of Acoustic Coupling and Audiological Measures Are Associated with Individual Speech-in-Noise Benefit From Noise Reduction in Hearing Aids.","authors":"Tim Jürgens, Peter Ihly, Jürgen Tchorz, Takanori Nishiyama, Chiemi Tanaka, Daisuke Suzuki, Seiichi Shinden, Tsubasa Kitama, Kaoru Ogawa, Johannes Zaar, Søren Laugesen, Gary Jones, Marianna Vatti, Sébastien Santurette","doi":"10.1177/23312165251325983","DOIUrl":"10.1177/23312165251325983","url":null,"abstract":"The combination of directional microphones (DIR) and spectral noise reduction (NR) is a common technique in hearing aid signal processing, for improving speech intelligibility in spatial acoustic scenarios. The benefit from DIR + NR varies considerably across individuals, which impedes prescribing the optimal strength of such processing during hearing aid fitting. The goal of this study was to investigate the correlation of four audiological factors with the benefit of speech reception thresholds (SRTs) from DIR + NR: the closedness of the acoustic coupling in the ear canal, audible contrast thresholds test (ACT™), the audiogram, and age. As part of a larger field study, 123 experienced hearing aid users in two centers in Germany and Japan were fitted bilaterally with the same hearing aids. SRTs were obtained with and without strong DIR + NR in a spatial speech-in-noise scenario before and after the field trials. Closedness of acoustic coupling was found to have the strongest correlation with SRT benefit from DIR + NR (most likely dominated by DIR rather than NR processing), followed by audible contrast thresholds (ACT) and the audiogram, both with the same significantly weaker correlation. Age was not correlated with the benefit from DIR + NR. The results suggest fitting hearing aid users irrespective of age with as-closed-as-possible acoustic coupling to maximize the benefit of DIR + NR. Furthermore, the closedness of acoustic coupling in combination with ACT or the audiogram may serve audiologists in predicting individual speech intelligibility benefits from strong DIR + NR for better guidance to set its strength during hearing aid fitting.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251325983"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11954453/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic and Environmental Contributions to Age-Related Hearing Loss: Results from a Longitudinal Twin Study. 遗传和环境因素对年龄相关性听力损失的影响：一项纵向双胞胎研究的结果。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-04-23 DOI: 10.1177/23312165251320156

Ryan M O'Leary, Arthur Wingfield, Michael J Lyons, Carol E Franz, William S Kremen

{"title":"Genetic and Environmental Contributions to Age-Related Hearing Loss: Results from a Longitudinal Twin Study.","authors":"Ryan M O'Leary, Arthur Wingfield, Michael J Lyons, Carol E Franz, William S Kremen","doi":"10.1177/23312165251320156","DOIUrl":"https://doi.org/10.1177/23312165251320156","url":null,"abstract":"Over 430 million people worldwide experience disabling hearing loss, a condition that becomes more prevalent with age. Although the genetic component to hearing loss has been well established, there has been less data available regarding changes in the genetic contributions to hearing loss over time. We report the pure tone hearing thresholds across 500, 1,000, 2,000, 4,000, and 8,000 Hz from over 1,000 male twins comprising monozygotic (MZ) and dizygotic (DZ) pairs sampled from the United States-based Vietnam Era Twin Study of Aging (VETSA). Twins were tested during three waves, at an average age of 56 at wave 1, an average age of 62 at wave 2, and an average age of 68 at wave 3. Genetically informed structural equation models were used to calculate the genetic contributions. Genetic factors accounted for between 49.4% and 67.7% of the variance in hearing acuity for all frequencies at all three time points. There was no substantial change in the ratio of genetic versus environmental contributions across the three time points, or across individual acoustic frequencies. The stability of hearing acuity over time was moderate to highly attributable to genetic factors. Change in hearing acuity was better explained by unique person-specific environmental factors. These results, from the largest-scale twin study of hearing acuity to date, replicate previous findings that hearing acuity in late life is significantly determined by genetic factors. The unique contribution of the present analysis is that the proportion of hearing acuity attributed to genetics remains relatively consistent across 12 years.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251320156"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12035256/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144057792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Hearing Impairment on Independent Travel in Individuals With Normal Vision, Low Vision, and Blindness. 听力障碍对正常视力、低视力和失明个体独立旅行的影响。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-05-29 DOI: 10.1177/23312165251347130

Philip Reed, Joseph Paul Nemargut, Judith E Goldstein, Coral E Dirks, Yingzi Xiong

{"title":"Impact of Hearing Impairment on Independent Travel in Individuals With Normal Vision, Low Vision, and Blindness.","authors":"Philip Reed, Joseph Paul Nemargut, Judith E Goldstein, Coral E Dirks, Yingzi Xiong","doi":"10.1177/23312165251347130","DOIUrl":"https://doi.org/10.1177/23312165251347130","url":null,"abstract":"Individuals with dual sensory impairment (DSI) often have reduced independence in their daily activities. Vision impairment is consistently reported to play a more dominant role than hearing impairment on home-based daily living, while little is known regarding the relative impact of vision and hearing impairments on tasks such as independent travel that require interacting with more complex environments. To address this knowledge gap, we administered a semistructured survey in a convenience sample of 161 individuals with normal vision, low vision, or blindness, with or without hearing impairment. A combination of qualitative and quantitative approaches was used to analyze the data. Compared to normal vision, low vision and blind participants were significantly less likely to be frequent travelers. Low vision participants reported that vision impairment had a greater impact than hearing impairment on their travel independence, while blind participants reported hearing impairment to have a greater impact than blindness on their travel independence. The unique challenges in blind individuals were highlighted by their concerns on localizing dynamic sounds such as traffic during travel. Seventy percent of the hearing-impaired participants wore hearing aids and reported high utility for speech perception, but there was a significant reduction in the utility of hearing aids for sound localization especially for the blind participants. Our results reveal the interaction between vision and hearing impairments on independent travel and emphasize the need for an integrated rehabilitation approach for this population.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251347130"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144175377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Judging the Number and Gender of Talkers Present in an Auditory Scene Aided by Acoustic Beamforming. 声波束形成辅助下判断听觉场景中说话者的数量和性别。

IF 2.6 2区医学

Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-05-29 DOI: 10.1177/23312165251329791

Andrew J Byrne, Gerald Kidd

{"title":"Judging the Number and Gender of Talkers Present in an Auditory Scene Aided by Acoustic Beamforming.","authors":"Andrew J Byrne, Gerald Kidd","doi":"10.1177/23312165251329791","DOIUrl":"https://doi.org/10.1177/23312165251329791","url":null,"abstract":"The perceived numerosity of simultaneous, spatially separated speech sources was used to evaluate the effectiveness of triple beamformer processing, compared to that of both a single-channel beamformer and natural listening. Participants made judgments of the total number of talkers present in a simulated sound field and the gender composition of the talker group. The perceived numerosity was always underestimated for groups of more than three talkers. Performance with the triple beamformer was roughly equivalent to that of natural listening, including a beneficial effect of spatial separation of the sources in azimuth. The gender mix of the talker group also affected the numerosity judgments although the perceived gender ratio was generally accurate even when the total group count was underestimated. Time-reversing the speech resulted in lower numerosity judgements (increased error) under both natural and triple beamformer listening, suggesting an influence of linguistic processing on source numerosity judgments. Overall, factors that enhanced source segregation and speech stream coherence decreased errors in numerosity judgments. A stimulus-derived metric-the composite of glimpsed energy retained for all talkers in the sound field-was found to be a reasonably accurate predictor of the subjective numerosity judgments.","PeriodicalId":48678,"journal":{"name":"Trends in Hearing","volume":"29 ","pages":"23312165251329791"},"PeriodicalIF":2.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144175396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0