To investigate how much gain variation is required from prescription to effect tinnitus percept,and if this revised prescription affects speech recognition.Twenty participants who experienced catastrophic tinnitus eve...To investigate how much gain variation is required from prescription to effect tinnitus percept,and if this revised prescription affects speech recognition.Twenty participants who experienced catastrophic tinnitus even after fitted with hearing aid were included.Participants were grouped based on their tinnitus pitch and the prescriptive formula used to fit hearing aid.They were evaluated for handicap from tinnitus using Tinnitus Handicap Inventory(THI).Hearing aid was programmed using either NAL-NL2 or DSL(I/o)v5 prescriptive formula and gain at tinnitus pitch was adjusted till the tinnitus get suppressed.SNR 50 was determined soon after fitted with hearing aid and 30 days of hearing aid use.Further,THI and international outcome inventory for hearing aid(IOI-HA)were determined after 30 days of hearing aid use.A significant higher gain adjustment was needed at tinnitus pitch to reduce tinnitus precept using NAL-NL2 than DSL(I/o)v5 prescriptive formula.Further,SNR 50 was not affected by either tinnitus pitch or revised prescription formulas.However,SNR 50 improved after 30 days of hearing aid use.A 76% of the participants’experienced habituation to perception after 30 days of hearing aid use,10% had slight,10% had mild,and 4% had a moderate degree of tinnitus on THI.On IOA-HA,96%(N=19)of participants have reported satisfactory,and 4%(N=1)reported moderate benefit from hearing aid.Irrespective of prescriptive formula adjusting gain at tinnitus pitch is an efficient method to reduce tinnitus symptoms and improve speech perception.展开更多
Objective:Contribute to clarifying the existence of subclinical hearing deficits associated with aging.Design:In this work,we study and compare the auditory perceptual and electrophysiological performance of normal-he...Objective:Contribute to clarifying the existence of subclinical hearing deficits associated with aging.Design:In this work,we study and compare the auditory perceptual and electrophysiological performance of normal-hearing young and adult subjects(tonal audiometry,high-frequency tone threshold,a triplet of digits in noise,and click-evoked auditory brainstem response).Study sample:45 normal hearing volunteers were evaluated and divided into two groups according to age.27 subjects were included in the“young group”(mean 22.1 years),and 18 subjects(mean 42.22 years)were included in the“adult group.”Results:In the perceptual tests,the adult group presented significantly worse tonal thresholds in the high frequencies(12 and 16 kHz)and worse performance in the digit triplet tests in noise.In the electrophysiological test using the auditory brainstem response technique,the adult group presented significantly lower I and V wave amplitudes and higher V wave latencies at the supra-threshold level.At the threshold level,we observed a significantly higher latency in wave V in the adult group.In addition,in the partial correlation analysis,controlling for the hearing level,we observed a relationship(negative)between age and speech in noise performance and high-frequency thresholds.No significant association was observed between age and the auditory brainstem response.Conclusion:The results are compatible with subclinical hearing loss associated with aging.展开更多
Introduction: Hearing disability is a condition that affects normal ear function, as much in adulthood as in the first years of life. According to the 2005 Census, 6.3% of the Colombian population has some type of dis...Introduction: Hearing disability is a condition that affects normal ear function, as much in adulthood as in the first years of life. According to the 2005 Census, 6.3% of the Colombian population has some type of disability, of which 17.4% have hearing limitations, including those with hearing devices. Elucidating the conditions of this population and identifying the factors related to hearing disability will permit the management of strategies from different sectors to mitigate the consequences associated with this limitation. Objective: To estimate the self-perception of hearing disability in Colombia and to determine the factors associated with this limitation. Materials and Methods: The present study is cross-sectional, based on the analysis of secondary information obtained from the Registry for Localization and Characterization of Persons with Disability (RLCPD) during the 2002-2008 period. Socio-demographic and healthcare variables were analyzed. Results: 13.6% (102,648/750,377) of the population reported hearing limitations even with the use of special hearing devices. 43.52% (44,041) of people over 3 years of age could neither read nor write. 29.39% (30,145) of people who reported this limitation are not affiliated to any sort of health insurance system. Factors found to be associated with hearing limitations were: socioeconomic stratus (OR: 1.33;CI 95% 1.25;1.42), illiteracy (OR: 1.44;CI 95% 1.42;1.46) and lack of affiliation to a health insurance system (OR: 1.03;CI 95% 1.01;1.04). Conclusion: People registered with hearing disability live under vulnerable conditions;among them, most/the majority pertained to a segment of the population with low economic resources and had difficulty obtaining/accessing work, education and healthcare services.展开更多
针对传统数值预报模式计算时间长和计算资源消耗大的问题,以及现有深度学习预报方法在温度预报结果上不精确,且预测结果模糊的问题,提出了一个新的温度预报模型。首先,设计了一个时空信息捕捉模块,将该模块捕获的长期依赖信息,作为扩散...针对传统数值预报模式计算时间长和计算资源消耗大的问题,以及现有深度学习预报方法在温度预报结果上不精确,且预测结果模糊的问题,提出了一个新的温度预报模型。首先,设计了一个时空信息捕捉模块,将该模块捕获的长期依赖信息,作为扩散模型的生成条件,赋予扩散模型预报的能力;其次,设计了一个新的平衡损失函数,同时保护了扩散模型的生成能力和时空信息捕捉模块对时空信息的捕捉能力;最后,基于美国国家环境预报中心的再分析数据进行预报,与现有的深度学习方法相比,所提模型预报结果的质量在均方误差(mean square error,MSE)上降低了17.3%,在均方根误差(root mean square error,RMSE)上降低了9.14%,在峰值信噪比(peak signal to noise ratio,PSNR)上提升了5.1%。改进的扩散模型能有效地捕捉时空依赖的关系,有效地进行时空序列预测,效果优于其他对比方法。展开更多
Many patients with sensorineural hearing loss have a precipitous high-frequency loss with relatively good thresholds in the low frequencies.This present paper briefly introduces and compares the basic principles of fo...Many patients with sensorineural hearing loss have a precipitous high-frequency loss with relatively good thresholds in the low frequencies.This present paper briefly introduces and compares the basic principles of four types of frequency lowering algorithms with emphasis on nonlinear frequency compression(NLFC). A review of the effects of the NLFC algorithm on speech and music perception and sound quality appraisal is then provided. For vowel perception, it seems that the benefits provided by NLFC are limited, which are probably related to the parameter settings of the compression. For consonant perception, several studies have shown that NLFC provides improved perception of highfrequency consonants such as/s/and/z/. However, a few other studies have demonstrated negative results in consonant perception. In terms of sentence recognition, persistent use of NLFC might provide improved performance. Compared to the conventional processing, NLFC does not alter the speech sound quality appraisal and music perception as long as the compression setting is not too aggressive. In the subsequent section,the relevant factors with regard to NLFC settings, time-course of acclimatization, listener characteristics, and perceptual tasks are discussed.Although the literature shows mixed results on the perceptual efficacy of NLFC, this technique improved certain aspects of speech understanding in certain hearing-impaired listeners. Little research is available on speech perception outcomes in languages other than English. More clinical data are needed to verify the perceptual efficacy of NLFC in patients with precipitous high-frequency hearing loss. Such knowledge will help guide clinical rehabilitation of those patients.展开更多
In the field of speech bandwidth exten-sion,it is difficult to achieve high speech quality based on the shallow statistical model method.Although the application of deep learning has greatly improved the extended spee...In the field of speech bandwidth exten-sion,it is difficult to achieve high speech quality based on the shallow statistical model method.Although the application of deep learning has greatly improved the extended speech quality,the high model complex-ity makes it infeasible to run on the client.In order to tackle these issues,this paper proposes an end-to-end speech bandwidth extension method based on a temporal convolutional neural network,which greatly reduces the complexity of the model.In addition,a new time-frequency loss function is designed to en-able narrowband speech to acquire a more accurate wideband mapping in the time domain and the fre-quency domain.The experimental results show that the reconstructed wideband speech generated by the proposed method is superior to the traditional heuris-tic rule based approaches and the conventional neu-ral network methods for both subjective and objective evaluation.展开更多
文摘To investigate how much gain variation is required from prescription to effect tinnitus percept,and if this revised prescription affects speech recognition.Twenty participants who experienced catastrophic tinnitus even after fitted with hearing aid were included.Participants were grouped based on their tinnitus pitch and the prescriptive formula used to fit hearing aid.They were evaluated for handicap from tinnitus using Tinnitus Handicap Inventory(THI).Hearing aid was programmed using either NAL-NL2 or DSL(I/o)v5 prescriptive formula and gain at tinnitus pitch was adjusted till the tinnitus get suppressed.SNR 50 was determined soon after fitted with hearing aid and 30 days of hearing aid use.Further,THI and international outcome inventory for hearing aid(IOI-HA)were determined after 30 days of hearing aid use.A significant higher gain adjustment was needed at tinnitus pitch to reduce tinnitus precept using NAL-NL2 than DSL(I/o)v5 prescriptive formula.Further,SNR 50 was not affected by either tinnitus pitch or revised prescription formulas.However,SNR 50 improved after 30 days of hearing aid use.A 76% of the participants’experienced habituation to perception after 30 days of hearing aid use,10% had slight,10% had mild,and 4% had a moderate degree of tinnitus on THI.On IOA-HA,96%(N=19)of participants have reported satisfactory,and 4%(N=1)reported moderate benefit from hearing aid.Irrespective of prescriptive formula adjusting gain at tinnitus pitch is an efficient method to reduce tinnitus symptoms and improve speech perception.
基金supported by a grant of the University of Chile(UI-10/16)to EA.
文摘Objective:Contribute to clarifying the existence of subclinical hearing deficits associated with aging.Design:In this work,we study and compare the auditory perceptual and electrophysiological performance of normal-hearing young and adult subjects(tonal audiometry,high-frequency tone threshold,a triplet of digits in noise,and click-evoked auditory brainstem response).Study sample:45 normal hearing volunteers were evaluated and divided into two groups according to age.27 subjects were included in the“young group”(mean 22.1 years),and 18 subjects(mean 42.22 years)were included in the“adult group.”Results:In the perceptual tests,the adult group presented significantly worse tonal thresholds in the high frequencies(12 and 16 kHz)and worse performance in the digit triplet tests in noise.In the electrophysiological test using the auditory brainstem response technique,the adult group presented significantly lower I and V wave amplitudes and higher V wave latencies at the supra-threshold level.At the threshold level,we observed a significantly higher latency in wave V in the adult group.In addition,in the partial correlation analysis,controlling for the hearing level,we observed a relationship(negative)between age and speech in noise performance and high-frequency thresholds.No significant association was observed between age and the auditory brainstem response.Conclusion:The results are compatible with subclinical hearing loss associated with aging.
基金financed by the Unidad Médico-quirúrgica de Otorrinolaringologia S.A.
文摘Introduction: Hearing disability is a condition that affects normal ear function, as much in adulthood as in the first years of life. According to the 2005 Census, 6.3% of the Colombian population has some type of disability, of which 17.4% have hearing limitations, including those with hearing devices. Elucidating the conditions of this population and identifying the factors related to hearing disability will permit the management of strategies from different sectors to mitigate the consequences associated with this limitation. Objective: To estimate the self-perception of hearing disability in Colombia and to determine the factors associated with this limitation. Materials and Methods: The present study is cross-sectional, based on the analysis of secondary information obtained from the Registry for Localization and Characterization of Persons with Disability (RLCPD) during the 2002-2008 period. Socio-demographic and healthcare variables were analyzed. Results: 13.6% (102,648/750,377) of the population reported hearing limitations even with the use of special hearing devices. 43.52% (44,041) of people over 3 years of age could neither read nor write. 29.39% (30,145) of people who reported this limitation are not affiliated to any sort of health insurance system. Factors found to be associated with hearing limitations were: socioeconomic stratus (OR: 1.33;CI 95% 1.25;1.42), illiteracy (OR: 1.44;CI 95% 1.42;1.46) and lack of affiliation to a health insurance system (OR: 1.03;CI 95% 1.01;1.04). Conclusion: People registered with hearing disability live under vulnerable conditions;among them, most/the majority pertained to a segment of the population with low economic resources and had difficulty obtaining/accessing work, education and healthcare services.
文摘针对传统数值预报模式计算时间长和计算资源消耗大的问题,以及现有深度学习预报方法在温度预报结果上不精确,且预测结果模糊的问题,提出了一个新的温度预报模型。首先,设计了一个时空信息捕捉模块,将该模块捕获的长期依赖信息,作为扩散模型的生成条件,赋予扩散模型预报的能力;其次,设计了一个新的平衡损失函数,同时保护了扩散模型的生成能力和时空信息捕捉模块对时空信息的捕捉能力;最后,基于美国国家环境预报中心的再分析数据进行预报,与现有的深度学习方法相比,所提模型预报结果的质量在均方误差(mean square error,MSE)上降低了17.3%,在均方根误差(root mean square error,RMSE)上降低了9.14%,在峰值信噪比(peak signal to noise ratio,PSNR)上提升了5.1%。改进的扩散模型能有效地捕捉时空依赖的关系,有效地进行时空序列预测,效果优于其他对比方法。
基金supported in part by Grant No.2017JJ3497 from Natural Science Foundation of Hunan Province
文摘Many patients with sensorineural hearing loss have a precipitous high-frequency loss with relatively good thresholds in the low frequencies.This present paper briefly introduces and compares the basic principles of four types of frequency lowering algorithms with emphasis on nonlinear frequency compression(NLFC). A review of the effects of the NLFC algorithm on speech and music perception and sound quality appraisal is then provided. For vowel perception, it seems that the benefits provided by NLFC are limited, which are probably related to the parameter settings of the compression. For consonant perception, several studies have shown that NLFC provides improved perception of highfrequency consonants such as/s/and/z/. However, a few other studies have demonstrated negative results in consonant perception. In terms of sentence recognition, persistent use of NLFC might provide improved performance. Compared to the conventional processing, NLFC does not alter the speech sound quality appraisal and music perception as long as the compression setting is not too aggressive. In the subsequent section,the relevant factors with regard to NLFC settings, time-course of acclimatization, listener characteristics, and perceptual tasks are discussed.Although the literature shows mixed results on the perceptual efficacy of NLFC, this technique improved certain aspects of speech understanding in certain hearing-impaired listeners. Little research is available on speech perception outcomes in languages other than English. More clinical data are needed to verify the perceptual efficacy of NLFC in patients with precipitous high-frequency hearing loss. Such knowledge will help guide clinical rehabilitation of those patients.
文摘In the field of speech bandwidth exten-sion,it is difficult to achieve high speech quality based on the shallow statistical model method.Although the application of deep learning has greatly improved the extended speech quality,the high model complex-ity makes it infeasible to run on the client.In order to tackle these issues,this paper proposes an end-to-end speech bandwidth extension method based on a temporal convolutional neural network,which greatly reduces the complexity of the model.In addition,a new time-frequency loss function is designed to en-able narrowband speech to acquire a more accurate wideband mapping in the time domain and the fre-quency domain.The experimental results show that the reconstructed wideband speech generated by the proposed method is superior to the traditional heuris-tic rule based approaches and the conventional neu-ral network methods for both subjective and objective evaluation.