Trends in Amplification最新文献

The perception of telephone-processed speech by combined electric and acoustic stimulation. 通过电和声联合刺激对电话处理过的语音的感知。

Trends in Amplification Pub Date : 2013-09-01 Epub Date: 2013-11-20 DOI: 10.1177/1084713813512901

Yi Hu, Qudsia Tahmina, Christina Runge, David R Friedland

{"title":"The perception of telephone-processed speech by combined electric and acoustic stimulation.","authors":"Yi Hu, Qudsia Tahmina, Christina Runge, David R Friedland","doi":"10.1177/1084713813512901","DOIUrl":"https://doi.org/10.1177/1084713813512901","url":null,"abstract":"This study assesses the effects of adding low- or high-frequency information to the band-limited telephone-processed speech on bimodal listeners' telephone speech perception in quiet environments. In the proposed experiments, bimodal users were presented under quiet listening conditions with wideband speech (WB), bandpass-filtered telephone speech (300-3,400 Hz, BP), high-pass filtered speech (f > 300 Hz, HP, i.e., distorted frequency components above 3,400 Hz in telephone speech were restored), and low-pass filtered speech (f < 3,400 Hz, LP, i.e., distorted frequency components below 300 Hz in telephone speech were restored). Results indicated that in quiet environments, for all four types of stimuli, listening with both hearing aid (HA) and cochlear implant (CI) was significantly better than listening with CI alone. For both bimodal and CI-alone modes, there were no statistically significant differences between the LP and BP scores and between the WB and HP scores. However, the HP scores were significantly better than the BP scores. In quiet conditions, both CI alone and bimodal listening achieved the largest benefits when telephone speech was augmented with high rather than low-frequency information. These findings provide support for the design of algorithms that would extend higher frequency information, at least in quiet environments. ","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1084713813512901","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31893239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Modern prescription theory and application: realistic expectations for speech recognition with hearing AIDS. 现代处方理论与应用：听力艾滋病患者对语音识别的现实期望。

Trends in Amplification Pub Date : 2013-09-01 Epub Date: 2013-11-18 DOI: 10.1177/1084713813506301

Earl E Johnson

{"title":"Modern prescription theory and application: realistic expectations for speech recognition with hearing AIDS.","authors":"Earl E Johnson","doi":"10.1177/1084713813506301","DOIUrl":"10.1177/1084713813506301","url":null,"abstract":"A major decision at the time of hearing aid fitting and dispensing is the amount of amplification to provide listeners (both adult and pediatric populations) for the appropriate compensation of sensorineural hearing impairment across a range of frequencies (e.g., 160-10000 Hz) and input levels (e.g., 50-75 dB sound pressure level). This article describes modern prescription theory for hearing aids within the context of a risk versus return trade-off and efficient frontier analyses. The expected return of amplification recommendations (i.e., generic prescriptions such as National Acoustic Laboratories-Non-Linear 2, NAL-NL2, and Desired Sensation Level Multiple Input/Output, DSL m[i/o]) for the Speech Intelligibility Index (SII) and high-frequency audibility were traded against a potential risk (i.e., loudness). The modeled performance of each prescription was compared one with another and with the efficient frontier of normal hearing sensitivity (i.e., a reference point for the most return with the least risk). For the pediatric population, NAL-NL2 was more efficient for SII, while DSL m[i/o] was more efficient for high-frequency audibility. For the adult population, NAL-NL2 was more efficient for SII, while the two prescriptions were similar with regard to high-frequency audibility. In terms of absolute return (i.e., not considering the risk of loudness), however, DSL m[i/o] prescribed more outright high-frequency audibility than NAL-NL2 for either aged population, particularly, as hearing loss increased. Given the principles and demonstrated accuracy of desensitization (reduced utility of audibility with increasing hearing loss) observed at the group level, additional high-frequency audibility beyond that of NAL-NL2 is not expected to make further contributions to speech intelligibility (recognition) for the average listener. ","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4070617/pdf/10.1177_1084713813506301.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31883113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laboratory and field study of the potential benefits of pinna cue-preserving hearing aids. 保留耳廓线索的助听器的潜在益处的实验室和实地研究。

Trends in Amplification Pub Date : 2013-09-01 Epub Date: 2013-11-10 DOI: 10.1177/1084713813510977

Niels Søgaard Jensen, Tobias Neher, Søren Laugesen, René Burmand Johannesson, Louise Kragelund

{"title":"Laboratory and field study of the potential benefits of pinna cue-preserving hearing aids.","authors":"Niels Søgaard Jensen, Tobias Neher, Søren Laugesen, René Burmand Johannesson, Louise Kragelund","doi":"10.1177/1084713813510977","DOIUrl":"https://doi.org/10.1177/1084713813510977","url":null,"abstract":"The potential benefits of preserving high-frequency spectral cues created by the pinna in hearing-aid fittings were investigated in a combined laboratory and field test. In a single-blind crossover design, two settings of an experimental hearing aid were compared. One setting was characterized by a pinna cue-preserving microphone position, whereas the other was characterized by a microphone position not preserving pinna cues. Participants were allowed 1 month of acclimatization to each setting before measurements of localization and spatial release from speech-on-speech masking were completed in the laboratory. Real-world experience with the two settings was assessed by means of questionnaires. Seventeen participants with mild to moderate sensorineural hearing impairments completed the study. An inconsistent pinna cue benefit pattern was observed across the outcome measures. In the localization test, the pinna cue-preserving setting provided a significant mean reduction of 22° in the root mean square (RMS) error in the front-back dimension, with 13 of the 17 participants showing a reduction of at least 15°. No significant mean difference in RMS error between settings was observed in the left-right dimension. No significant differences between settings were observed in the spatial-unmasking test conditions. The questionnaire data indicated a small, but nonsignificant, benefit of the pinna cue-preserving setting in certain real-life situations, which corresponded with a general preference for that setting. No significant real-life localization benefit was observed. The results suggest that preserving pinna cues can offer benefit in some conditions for individual hearing-aid users with mild to moderate hearing loss and is unlikely to harm performances for the rest. ","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1084713813510977","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31853089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

How linguistic closure and verbal working memory relate to speech recognition in noise--a review. 语言封闭性和言语工作记忆如何与噪音中的语音识别相关--综述。

Trends in Amplification Pub Date : 2013-06-01 Epub Date: 2013-08-13 DOI: 10.1177/1084713813495459

Jana Besser, Thomas Koelewijn, Adriana A Zekveld, Sophia E Kramer, Joost M Festen

{"title":"How linguistic closure and verbal working memory relate to speech recognition in noise--a review.","authors":"Jana Besser, Thomas Koelewijn, Adriana A Zekveld, Sophia E Kramer, Joost M Festen","doi":"10.1177/1084713813495459","DOIUrl":"10.1177/1084713813495459","url":null,"abstract":"The ability to recognize masked speech, commonly measured with a speech reception threshold (SRT) test, is associated with cognitive processing abilities. Two cognitive factors frequently assessed in speech recognition research are the capacity of working memory (WM), measured by means of a reading span (Rspan) or listening span (Lspan) test, and the ability to read masked text (linguistic closure), measured by the text reception threshold (TRT). The current article provides a review of recent hearing research that examined the relationship of TRT and WM span to SRTs in various maskers. Furthermore, modality differences in WM capacity assessed with the Rspan compared to the Lspan test were examined and related to speech recognition abilities in an experimental study with young adults with normal hearing (NH). Span scores were strongly associated with each other, but were higher in the auditory modality. The results of the reviewed studies suggest that TRT and WM span are related to each other, but differ in their relationships with SRT performance. In NH adults of middle age or older, both TRT and Rspan were associated with SRTs in speech maskers, whereas TRT better predicted speech recognition in fluctuating nonspeech maskers. The associations with SRTs in steady-state noise were inconclusive for both measures. WM span was positively related to benefit from contextual information in speech recognition, but better TRTs related to less interference from unrelated cues. Data for individuals with impaired hearing are limited, but larger WM span seems to give a general advantage in various listening situations. ","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4070613/pdf/10.1177_1084713813495459.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31657958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The master hearing aid. 助听器大师。

Trends in Amplification Pub Date : 2013-06-01 Epub Date: 2013-05-17 DOI: 10.1177/1084713813486851

James R Curran, Jason A Galster

引用次数: 0

Initial development of a temporal-envelope-preserving nonlinear hearing aid prescription using a genetic algorithm. 基于遗传算法的时间包络保持非线性助听器处方的初步开发。

Trends in Amplification Pub Date : 2013-06-01 DOI: 10.1177/1084713813495981

Andrew T Sabin, Pamela E Souza

{"title":"Initial development of a temporal-envelope-preserving nonlinear hearing aid prescription using a genetic algorithm.","authors":"Andrew T Sabin, Pamela E Souza","doi":"10.1177/1084713813495981","DOIUrl":"https://doi.org/10.1177/1084713813495981","url":null,"abstract":"Most hearing aid prescriptions focus on the optimization of a metric derived from the long-term average spectrum of speech, and do not consider how the prescribed values might distort the temporal envelope shape. A growing body of evidence suggests that such distortions can lead to systematic errors in speech perception, and therefore hearing aid prescriptions might benefit by including preservation of the temporal envelope shape in their rationale. To begin to explore this possibility, we designed a genetic algorithm (GA) to find the multiband compression settings that preserve the shape of the original temporal envelope while placing that envelope in the listener's audiometric dynamic range. The resulting prescription had a low compression threshold, short attack and release times, and a combination of compression ratio and gain that placed the output signal within the listener's audiometric dynamic range. Initial behavioral tests of individuals with impaired hearing revealed no difference in speech-in-noise perception between the GA and the NAL-NL2 prescription. However, gap detection performance was superior with the GA in comparison to NAL-NL2. Overall, this work is a proof of concept that consideration of temporal envelope distortions can be incorporated into hearing aid prescriptions. ","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1084713813495981","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31726912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Perception of pure tones and iterated rippled noise for normal hearing and cochlear implant users. 对正常听力和人工耳蜗使用者的纯音和反复波纹噪声的感知。

Trends in Amplification Pub Date : 2013-03-01 DOI: 10.1177/1084713813482759

Richard T Penninger, Wade W Chien, Patpong Jiradejvong, Emily Boeke, Courtney L Carver, Charles J Limb

{"title":"Perception of pure tones and iterated rippled noise for normal hearing and cochlear implant users.","authors":"Richard T Penninger, Wade W Chien, Patpong Jiradejvong, Emily Boeke, Courtney L Carver, Charles J Limb","doi":"10.1177/1084713813482759","DOIUrl":"https://doi.org/10.1177/1084713813482759","url":null,"abstract":"Cochlear Implant (CI) users typically perform poorly on musical tasks, especially those based on pitch ranking and melody recognition. It was hypothesized that CI users would demonstrate deterioration in performance for a pitch ranking and a melody recognition task presented with iterated rippled noise (IRN) in comparison to pure tones (PT). In Addition, it was hypothesized that normal hearing (NH) listeners would show fewer differences in performance between IRN and PT for these two tasks. In this study, the ability of CI users and NH subjects to rank pitches and to identify melodies created with IRN and PT was assessed in free field in a sound-isolated room. CI subjects scored significantly above chance level with PT stimuli in both tasks. With IRN stimuli their performance was around chance level. NH subjects scored significantly above chance level in both tasks and with all stimuli. NH subjects performed significantly better than CI subjects in both tasks. These results illustrate the difficulties of CI subjects to rank pitches and to identify melodies.","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1084713813482759","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40234686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Psychoacoustic and phoneme identification measures in cochlear-implant and normal-hearing listeners. 耳蜗植入者和正常听力者的心理声学和音素识别措施。

Trends in Amplification Pub Date : 2013-03-01 Epub Date: 2013-02-21 DOI: 10.1177/1084713813477244

Ray L Goldsworthy, Lorraine A Delhorne, Louis D Braida, Charlotte M Reed

{"title":"Psychoacoustic and phoneme identification measures in cochlear-implant and normal-hearing listeners.","authors":"Ray L Goldsworthy, Lorraine A Delhorne, Louis D Braida, Charlotte M Reed","doi":"10.1177/1084713813477244","DOIUrl":"https://doi.org/10.1177/1084713813477244","url":null,"abstract":"The purpose of this study is to identify precise and repeatable measures for assessing cochlear-implant (CI) hearing. The study presents psychoacoustic and phoneme identification measures in CI and normal-hearing (NH) listeners, with correlations between measures examined. Psychoacoustic measures included pitch discrimination tasks using pure tones, harmonic complexes, and tone pips; intensity perception tasks included intensity discrimination for tones and modulation detection; spectral-temporal masking tasks included gap detection, forward and backward masking, tone-on-tone masking, synthetic formant-on-formant masking, and tone in noise detection. Phoneme perception measures included vowel and consonant identification in quiet and stationary and temporally gated speech-shaped noise. Results on psychoacoustic measures illustrate the effects of broader filtering in CI hearing contributing to reduced pitch perception and increased spectral masking. Results on consonant and vowel identification measures illustrate a wide range in performance across CI listeners. They also provide further evidence that CI listeners obtain little to no release of masking in temporally gated noise compared to stationary noise. The forward and backward-masking measures had the highest correlation with the phoneme identification measures for CI listeners. No significant correlations between speech reception and psychoacoustic measures were observed for NH listeners. The superior NH performance on measures of phoneme identification, especially in the presence of background noise, is a key difference between groups.","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1084713813477244","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31255241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

A systematic review of electric-acoustic stimulation: device fitting ranges, outcomes, and clinical fitting practices. 电声刺激的系统回顾:设备装配范围，结果和临床装配实践。

Trends in Amplification Pub Date : 2013-03-01 DOI: 10.1177/1084713813480857

Paola V Incerti, Teresa Y C Ching, Robert Cowan

{"title":"A systematic review of electric-acoustic stimulation: device fitting ranges, outcomes, and clinical fitting practices.","authors":"Paola V Incerti, Teresa Y C Ching, Robert Cowan","doi":"10.1177/1084713813480857","DOIUrl":"https://doi.org/10.1177/1084713813480857","url":null,"abstract":"Cochlear implant systems that combine electric and acoustic stimulation in the same ear are now commercially available and the number of patients using these devices is steadily increasing. In particular, electric-acoustic stimulation is an option for patients with severe, high frequency sensorineural hearing impairment. There have been a range of approaches to combining electric stimulation and acoustic hearing in the same ear. To develop a better understanding of fitting practices for devices that combine electric and acoustic stimulation, we conducted a systematic review addressing three clinical questions: what is the range of acoustic hearing in the implanted ear that can be effectively preserved for an electric-acoustic fitting?; what benefits are provided by combining acoustic stimulation with electric stimulation?; and what clinical fitting practices have been developed for devices that combine electric and acoustic stimulation? A search of the literature was conducted and 27 articles that met the strict evaluation criteria adopted for the review were identified for detailed analysis. The range of auditory thresholds in the implanted ear that can be successfully used for an electric-acoustic application is quite broad. The effectiveness of combined electric and acoustic stimulation as compared with electric stimulation alone was consistently demonstrated, highlighting the potential value of preservation and utilization of low frequency hearing in the implanted ear. However, clinical procedures for best fitting of electric-acoustic devices were varied. This clearly identified a need for further investigation of fitting procedures aimed at maximizing outcomes for recipients of electric-acoustic devices.","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1084713813480857","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40234685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 60

Nonlinear frequency compression: effects on sound quality ratings of speech and music. 非线性频率压缩:对语音和音乐音质评级的影响。

Trends in Amplification Pub Date : 2013-03-01 DOI: 10.1177/1084713813480856

Vijay Parsa, Susan Scollie, Danielle Glista, Andreas Seelisch

{"title":"Nonlinear frequency compression: effects on sound quality ratings of speech and music.","authors":"Vijay Parsa, Susan Scollie, Danielle Glista, Andreas Seelisch","doi":"10.1177/1084713813480856","DOIUrl":"https://doi.org/10.1177/1084713813480856","url":null,"abstract":"Frequency lowering technologies offer an alternative amplification solution for severe to profound high frequency hearing losses. While frequency lowering technologies may improve audibility of high frequency sounds, the very nature of this processing can affect the perceived sound quality. This article reports the results from two studies that investigated the impact of a nonlinear frequency compression (NFC) algorithm on perceived sound quality. In the first study, the cutoff frequency and compression ratio parameters of the NFC algorithm were varied, and their effect on the speech quality was measured subjectively with 12 normal hearing adults, 12 normal hearing children, 13 hearing impaired adults, and 9 hearing impaired children. In the second study, 12 normal hearing and 8 hearing impaired adult listeners rated the quality of speech in quiet, speech in noise, and music after processing with a different set of NFC parameters. Results showed that the cutoff frequency parameter had more impact on sound quality ratings than the compression ratio, and that the hearing impaired adults were more tolerant to increased frequency compression than normal hearing adults. No statistically significant differences were found in the sound quality ratings of speech-in-noise and music stimuli processed through various NFC settings by hearing impaired listeners. These findings suggest that there may be an acceptable range of NFC settings for hearing impaired individuals where sound quality is not adversely affected. These results may assist an Audiologist in clinical NFC hearing aid fittings for achieving a balance between high frequency audibility and sound quality.","PeriodicalId":48972,"journal":{"name":"Trends in Amplification","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1084713813480856","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40234687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20