Speech‐reception thresholds in noise with one and two hearing aids

1984 ◽  
Vol 76 (S1) ◽  
pp. S62-S62
Author(s):  
J. M. Festen
Keyword(s):  
Hearing Aids ◽  
Speech Reception ◽  
Speech Reception Thresholds

Transcranial Contralateral Cochlear Stimulation in Unilateral Deafness

2003 ◽  
Vol 129 (3) ◽  
pp. 248-254 ◽  
Author(s):  
Jack J. Wazen ◽  
Jaclyn B. Spitzer ◽  
Soha N. Ghossaini ◽  
José N. Fayad ◽  
John K. Niparko ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Hearing Aids ◽  
Speech Intelligibility ◽  
Recognition Performance ◽  
Auditory Stimuli ◽  
Unilateral Deafness ◽  
Speech Reception ◽  
Speech Reception Thresholds ◽  
Single Sided Deafness

OBJECTIVES: The purpose of this study is to evaluate the effectiveness of Bone Anchored Cochlear Stimulator (BAHA) in transcranial routing of signal by implanting the deaf ear. STUDY DESIGN AND SETTINGS: Eighteen patients with unilateral deafness were included in a multisite study. They had a 1-month pre-implantation trial with a contralateral routing of signal (CROS) hearing aid. Their performance with BAHA was compared with the CROS device using speech reception thresholds, speech recognition performance in noise, and the Abbreviated Profile Hearing Benefit and Single Sided Deafness questionnaires. RESULTS: Patients reported a significant improvement in speech intelligibility in noise and greater benefit from BAHA compared with CROS hearing aids. Patients were satisfied with the device and its impact on their quality of life. No major complications were reported. CONCLUSION AND SIGNIFICANCE: BAHA is effective in unilateral deafness. Auditory stimuli from the deaf side can be transmitted to the good ear, avoiding the limitations inherent in CROS amplification.

Effects of Expansion Algorithms on Speech Reception Thresholds

2008 ◽  
Vol 19 (02) ◽  
pp. 147-157 ◽  
Author(s):  
Christi L. Wise ◽  
Justin A. Zakis
Keyword(s):  
Hearing Aids ◽  
Single Channel ◽  
Multiple Channel ◽  
Low Level ◽  
Speech Reception ◽  
Average Spectrum ◽  
Channel Expansion ◽  
The Difference ◽  
Speech Reception Thresholds ◽  
The Impact

Expansion is commonly used to reduce microphone noise and low-level environmental noises that can be annoying to hearing aid users. It may also improve or reduce the perception of low-level speech. This study assessed the impact of two expansion algorithms, single and multiple channel, on speech reception thresholds (SRT) with 10 hearing impaired listeners wearing hearing aids with ADRO® processing. The single-channel algorithm suppressed sounds below 45 dB A, while the multiple-channel algorithm suppressed sounds below the long-term average spectrum of speech at either 55 or 45 dB SPL. The mean HINT SRTs in quiet were 39.4, 40.7, 40.6, and 41.8 dB A without expansion, with single-channel expansion, and with multiple-channel expansion at expansion thresholds of 45 and 55 dB SPL, respectively. The difference in mean SRT was only statistically significant between no expansion and multiple-channel expansion at a 55 dB SPL threshold. A regression analysis between the change in individual SRT for each expansion condition and pure tone average hearing loss showed no correlation. Our calculations indicate that only those with exceptionally good hearing will find microphone noise audible. The current practice of prescribing expansion algorithms based on hearing thresholds alone is questioned, and other rationales are discussed. La expansión se utiliza comúnmente para reducir el ruido de los micrófonos y los ruidos ambientales de bajo nivel que pueden ser perturbadores para los usuarios de auxiliares auditivos. También puede mejorar o reducir la percepción de lenguaje a bajo voumen. Este estudio evaluó el impacto de dos algoritmos de expansión, de canal múltiple y el canal único, sobre los umbrales de recepción del lenguaje (SRT) con 10 sujetos hipoacúsicos utilizando auxiliares auditivos con procesamiento ADRO®. El algoritmo de canal único suprimió sonidos por debajo de 45 dB A, mientras que el algoritmo de canal múltiple suprimió sonidos por debajo del espectro promedio a largo plazo del lenguaje, a 55 ó 45 dB SPL, respectivamente. La diferencia en el SRT medio fue sólo estadísticamente significativa entre la no expansión y la expansión de canal múltiple a un umbral de 55 dB SPL. Un análisis de regresión no mostró correlación entre el cambio en los SRT individuales para cada condición de expansión y la pérdida auditiva promedio para tonos puros. Nuestros cálculos indican que solamente aquellos con una audición excepcionalmente buena encontrarán audible el ruido del micrófono. Se cuestiona la práctica actual de prescribir algoritmos de expansión con base sólo en umbrales auditivos, y se discuten otros razonamientos.

Prediction of IOI-HA Scores Using Speech Reception Thresholds and Speech Discrimination Scores in Quiet

2014 ◽  
Vol 25 (02) ◽  
pp. 154-163 ◽  
Author(s):  
K. Jonas Brännström ◽  
Johannes Lantz ◽  
Lars Holme Nielsen ◽  
Steen Østergaard Olsen
Keyword(s):  
Regression Analysis ◽  
Outcome Measures ◽  
Hearing Aids ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Global Score ◽  
Speech Discrimination ◽  
Speech Reception ◽  
Speech Reception Thresholds ◽  
First Time

Background: Outcome measures can be used to improve the quality of the rehabilitation by identifying and understanding which variables influence the outcome. This information can be used to improve outcomes for clients. In clinical practice, pure-tone audiometry, speech reception thresholds (SRTs), and speech discrimination scores (SDSs) in quiet or in noise are common assessments made prior to hearing aid (HA) fittings. It is not known whether SRT and SDS in quiet relate to HA outcome measured with the International Outcome Inventory for Hearing Aids (IOI-HA). Purpose: The aim of the present study was to investigate the relationship between pure-tone average (PTA), SRT, and SDS in quiet and IOI-HA in both first-time and experienced HA users. Research Design: SRT and SDS were measured in a sample of HA users who also responded to the IOI-HA. Study Sample: Fifty-eight Danish-speaking adult HA users. Data Collection and Analysis: The psychometric properties were evaluated and compared to previous studies using the IOI-HA. The associations and differences between the outcome scores and a number of descriptive variables (age, gender, fitted monaurally/binaurally with HA, first-time/experienced HA users, years of HA use, time since last HA fitting, best ear PTA, best ear SRT, or best ear SDS) were examined. A multiple forward stepwise regression analysis was conducted using scores on the separate IOI-HA items, the global score, and scores on the introspection and interaction subscales as dependent variables to examine whether the descriptive variables could predict these outcome measures. Results: Scores on single IOI-HA items, the global score, and scores on the introspection (items 1, 2, 4, and 7) and interaction (items 3, 5, and 6) subscales closely resemble those previously reported. Multiple regression analysis showed that the best ear SDS predicts about 18–19% of the outcome on items 3 and 5 separately, and about 16% on the interaction subscale (sum of items 3, 5, and 6) Conclusions: The best ears SDS explains some of the variance displayed in the IOI-HA global score and the interaction subscale. The relation between SDS and IOI-HA suggests that a poor unaided SDS might in itself be a limiting factor for the HA rehabilitation efficacy and hence the IOI-HA outcome. The clinician could use this information to align the user’s HA expectations to what is within possible reach.

scholarly journals Spatial Unmasking Effect on Speech Reception Threshold in the Median Plane

2020 ◽  
Vol 10 (15) ◽  
pp. 5257
Author(s):  
Nathan Berwick ◽  
Hyunkook Lee
Keyword(s):  
Transfer Function ◽  
Input Signal ◽  
Function Analysis ◽  
Median Plane ◽  
Speech Reception ◽  
Transfer Function Analysis ◽  
Spatial Unmasking ◽  
Head Related Transfer Function ◽  
Speech Reception Thresholds ◽  
Energy Weighting

This study examined whether the spatial unmasking effect operates on speech reception thresholds (SRTs) in the median plane. SRTs were measured using an adaptive staircase procedure, with target speech sentences and speech-shaped noise maskers presented via loudspeakers at −30°, 0°, 30°, 60° and 90°. Results indicated a significant median plane spatial unmasking effect, with the largest SRT gain obtained for the −30° elevation of the masker. Head-related transfer function analysis suggests that the result is associated with the energy weighting of the ear-input signal of the masker at upper-mid frequencies relative to the maskee.

scholarly journals Speech Perception and Sound-Quality Rating with an Adaptive Nonlinear Frequency Compression Algorithm in Mandarin-Speaking Hearing Aid Users

2020 ◽  
Vol 31 (08) ◽  
pp. 590-598
Author(s):  
Li Xu ◽  
Solveig C. Voss ◽  
Jing Yang ◽  
Xianhui Wang ◽  
Qian Lu ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Hearing Aids ◽  
Detection Threshold ◽  
Sound Quality ◽  
Hearing Impaired ◽  
Nonlinear Frequency ◽  
Frequency Compression ◽  
Speech Reception ◽  
Quality Ratings ◽  
Phoneme Detection

Abstract Background Mandarin Chinese has a rich repertoire of high-frequency speech sounds. This may pose a remarkable challenge to hearing-impaired listeners who speak Mandarin Chinese because of their high-frequency sloping hearing loss. An adaptive nonlinear frequency compression (adaptive NLFC) algorithm has been implemented in contemporary hearing aids to alleviate the problem. Purpose The present study examined the performance of speech perception and sound-quality rating in Mandarin-speaking hearing-impaired listeners using hearing aids fitted with adaptive NLFC (i.e., SoundRecover2 or SR2) at different parameter settings. Research Design Hearing-impaired listeners' phoneme detection thresholds, speech reception thresholds, and sound-quality ratings were collected with various SR2 settings. Study Sample The participants included 15 Mandarin-speaking adults aged 32 to 84 years old who had symmetric sloping severe-to-profound sensorineural hearing loss. Intervention The participants were fitted bilaterally with Phonak Naida V90-SP hearing aids. Data Collection and Analysis The outcome measures included phoneme detection threshold using the Mandarin Phonak Phoneme Perception test, speech reception threshold using the Mandarin hearing in noise test (M-HINT), and sound-quality ratings on human speech in quiet and noise, bird chirps, and music in quiet. For each test, five experimental settings were applied and compared: SR2-off, SR2-weak, SR2-default, SR2-strong 1, and SR2-strong 2. Results The results showed that listeners performed significantly better with SR2-strong 1 and SR2-strong 2 settings than with SR2-off or SR2-weak settings for speech reception threshold and phoneme detection threshold. However, no significant improvement was observed in sound-quality ratings among different settings. Conclusions These preliminary findings suggested that the adaptive NLFC algorithm provides perceptual benefit to Mandarin-speaking people with severe-to-profound hearing loss.

Total and Partial Ossicular Replacement Prostheses in Children

1994 ◽  
Vol 110 (3) ◽  
pp. 302-303 ◽  
Author(s):  
Alexander Kessler ◽  
William P. Potsic ◽  
Roger R. Marsh
Keyword(s):  
Success Rate ◽  
Middle Ear ◽  
Binaural Hearing ◽  
Surgical Success ◽  
Ossicular Reconstruction ◽  
Speech Reception ◽  
Ossicular Replacement ◽  
Middle Ear Disease ◽  
Speech Reception Thresholds ◽  
Early Reconstruction

Although ossicular reconstruction in children may carry a risk of failure because of recurrent middle ear disease, the procedure offers the potential for restoring binaural hearing during the school years when it is so critical. Of a series of 45 reconstructions with total and partial ossicular replacement prostheses, 6 were extruded for a surgical success rate of 87%. Of the successful cases, 74% had air-bone gaps of 30 dB or better, and 74% had speech reception thresholds of 30 dB or better on initial postoperative audiogram. Outcomes for these children were comparable with those reported for adults, supporting the value of early reconstruction.

scholarly journals Speech Understanding and Sound Localization with a New Nonimplantable Wearing Option for Baha

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Tom Gawliczek ◽  
Wilhelm Wimmer ◽  
Fabio Munzinger ◽  
Marco Caversaccio ◽  
Martin Kompis
Keyword(s):  
Hearing Loss ◽  
Sound Localization ◽  
Bone Conduction ◽  
Speech Understanding ◽  
Bilateral Hearing Loss ◽  
Speech Understanding In Noise ◽  
Speech Reception ◽  
Significant Difference ◽  
Speech Reception Thresholds ◽  
Sound Processor

Objective. To measure the audiological benefit of the Baha SoundArc, a recently introduced nonimplantable wearing option for bone conduction sound processor, and to compare it with the known softband wearing option in subjects with normal cochlear function and a purely conductive bilateral hearing loss.Methods. Both ears of 15 normal hearing subjects were occluded for the time of the measurement, yielding an average unaided threshold of 49 dB HL (0.5 – 4 kHz). Soundfield thresholds, speech understanding in quiet and in noise, and sound localization were measured in unaided conditions and with 1 or 2 Baha 5 sound processors mounted on either a softband or a SoundArc device.Results. Soundfield thresholds and speech reception thresholds were improved by 19.5 to 24.8 dB (p<.001), when compared to the unaided condition. Speech reception thresholds in noise were improved by 3.7 to 4.7 dB (p<.001). Using 2 sound processors rather than one improved speech understanding in noise for speech from the direction of the2nddevice and sound localization error by 23° to 28°. No statistically significant difference was found between the SoundArc and the softband wearing options in any of the tests.Conclusions. Bone conduction sound processor mounted on a SoundArc or on a softband resulted in considerable improvements in hearing and speech understanding in subjects with a simulated, purely conductive, and bilateral hearing loss. No significant difference between the 2 wearing options was found. Using 2 sound processors improves sound localization and speech understanding in noise in certain spatial settings.

scholarly journals Auditory Attention and Spatial Unmasking in Children With Cochlear Implants

2020 ◽  
Vol 24 ◽  
pp. 233121652094698
Author(s):  
Sara M. Misurelli ◽  
Matthew J. Goupell ◽  
Emily A. Burg ◽  
Rachael Jocewicz ◽  
Alan Kan ◽  
...  
Keyword(s):  
Cochlear Implants ◽  
Free Field ◽  
Auditory Attention ◽  
Noisy Environments ◽  
Speech Stimuli ◽  
Bilateral Cochlear Implants ◽  
Speech Reception ◽  
Spatial Unmasking ◽  
Speech Reception Thresholds ◽  
Hearing Children

The ability to attend to target speech in background noise is an important skill, particularly for children who spend many hours in noisy environments. Intelligibility improves as a result of spatial or binaural unmasking in the free-field for normal-hearing children; however, children who use bilateral cochlear implants (BiCIs) demonstrate little benefit in similar situations. It was hypothesized that poor auditory attention abilities might explain the lack of unmasking observed in children with BiCIs. Target and interferer speech stimuli were presented to either or both ears of BiCI participants via their clinical processors. Speech reception thresholds remained low when the target and interferer were in opposite ears, but they did not show binaural unmasking when the interferer was presented to both ears and the target only to one ear. These results demonstrate that, in the most extreme cases of stimulus separation, children with BiCIs can ignore an interferer and attend to target speech, but there is weak or absent binaural unmasking. It appears that children with BiCIs mostly experience poor encoding of binaural cues rather than deficits in ability to selectively attend to target speech.

Auditory Functional Age

1972 ◽  
Vol 3 (2) ◽  
pp. 183-187 ◽  
Author(s):  
Benjamin Bell
Keyword(s):  
Bone Conduction ◽  
Low Frequency ◽  
Speech Discrimination ◽  
Hearing Ability ◽  
Speech Reception ◽  
Aging Study ◽  
Normative Aging ◽  
Bone Conduction Hearing ◽  
Speech Reception Thresholds ◽  
Air Conduction

In the audiologic research of the Boston VA Normative Aging Study, an auditory age measure has been developed to represent the extent to which an individual is older or younger than his age peers in terms of his hearing ability. Sixteen auditory measures were placed in a stepwise regression procedure: air and bone conduction hearing at various frequencies, speech reception thresholds, speech discrimination scores, and two and three frequency averages. With chronological age as criterion, the resulting equation yielded an auditory age calculated from two variables: air conduction at 8,000 cps and speech reception threshold. Because of redundancy among the larger number of measures, these two effectively index the larger number. The two include high and low frequency measures so are sensitive to high frequency loss at older age.

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