scholarly journals Norms for the hearing in noise test: The influence of spatial separation, hearing loss, and English language experience on speech reception thresholds

1992 ◽  
Vol 92 (4) ◽  
pp. 2385-2385 ◽  
Author(s):  
Michael Nilsson ◽  
Donna Gelnett ◽  
Jean Sullivan ◽  
Sigfrid D. Soli ◽  
Robert L. Goldberg
Keyword(s):  
Hearing Loss ◽  
English Language ◽  
Spatial Separation ◽  
Language Experience ◽  
Speech Reception ◽  
Hearing In Noise ◽  
Noise Test ◽  
Speech Reception Thresholds

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.

The Effects of Expansion Time Constants on the Objective Performance of Hearing Instrument Users

2005 ◽  
Vol 16 (08) ◽  
pp. 614-621 ◽  
Author(s):  
Patrick N. Plyler ◽  
Ashley Blair Hill ◽  
Timothy D. Trine
Keyword(s):  
Hearing Loss ◽  
Time Constant ◽  
Test Results ◽  
Connected Speech ◽  
Time Constants ◽  
Speech Test ◽  
Hearing In Noise ◽  
Expansion Time ◽  
Objective Performance ◽  
Noise Test

The present study investigated the effects of expansion time constants on the objective performance of 20 hearing instrument users fitted binaurally with digital in-the-ear products. Objective performance was evaluated in quiet using the Connected Speech Test and in noise using the Hearing in Noise Test. Results indicated that objective performance in quiet and in noise decreased as the expansion time constant increased. Furthermore, expansion time constants affected the objective performance of listeners with varying degrees of hearing loss in a similar manner.

Randomised, double-blinded, placebo-controlled, clinical trial of ozone therapy as treatment of sudden sensorineural hearing loss

2008 ◽  
Vol 123 (1) ◽  
pp. 54-60 ◽  
Author(s):  
A Ragab ◽  
E Shreef ◽  
E Behiry ◽  
S Zalat ◽  
M Noaman
Keyword(s):  
Clinical Trial ◽  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Pure Tone ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Ozone Therapy ◽  
Speech Reception ◽  
Speech Reception Thresholds ◽  
Double Blinded

AbstractObjective:To investigate the safety and efficacy of ozone therapy in adult patients with sudden sensorineural hearing loss.Design:Prospective, randomised, double-blinded, placebo-controlled, parallel group, clinical trial.Subjects:Forty-five adult patients presented with sudden sensorineural hearing loss, and were randomly allocated to receive either placebo (15 patients) or ozone therapy (auto-haemotherapy; 30 patients). For the latter treatment, 100 ml of the patient's blood was treated immediately with a 1:1 volume, gaseous mixture of oxygen and ozone (from an ozone generator) and re-injected into the patient by intravenous infusion. Treatments were administered twice weekly for 10 sessions. The following data were recorded: pre- and post-treatment mean hearing gains; air and bone pure tone averages; speech reception thresholds; speech discrimination scores; and subjective recovery rates.Results:Significant recovery was observed in 23 patients (77 per cent) receiving ozone treatment, compared with six (40 per cent) patients receiving placebo (p < 0.05). Mean hearing gains, pure tone averages, speech reception thresholds and subjective recovery rates were significantly better in ozone-treated patients compared with placebo-treated patients (p < 0.05).Conclusion:Ozone therapy is a significant modality for treatment of sudden sensorineural hearing loss; no complications were observed.

Amplified Earmuffs

2005 ◽  
Vol 14 (1) ◽  
pp. 80-85 ◽  
Author(s):  
Thomas G. Dolan ◽  
Dennis O’Loughlin
Keyword(s):  
Hearing Loss ◽  
Speech Intelligibility ◽  
Noise Exposure ◽  
High Input ◽  
Industrial Noise ◽  
Low Input ◽  
Speech In Noise ◽  
Hearing In Noise ◽  
Noise Test

Purpose: To determine how amplified earmuffs affect the intelligibility of speech in noise for people with hearing loss, and to determine how various brands of amplified earmuffs compare in terms of speech intelligibility and electroacoustic response. Method: The Hearing in Noise Test (HINT) was used to measure the intelligibility of speech for 10 participants with hearing loss when they listened in a background of recorded industrial noise at 85 dBA. Participants listened with 3 different sets of amplified earmuffs (Peltor Tactical 7-S, Elvex COM 55, and Bilsom 707 Impact II), with a set of passive earmuffs (E-A-R Ultra 9000), and with ears unoccluded. Two measurements of sentence threshold were obtained under each of the 5 listening conditions. Gain was measured electroacoustically across a range of input levels and frequencies for each amplified earmuff. Results: Electroacoustic measurements indicated that each electronic earmuff amplified at low input levels and attenuated at high input levels. However, gain characteristics varied greatly across devices. HINT sentence thresholds were not significantly different across the 5 listening conditions or across the 2 trials. Conclusion: Results suggest that each type of earmuff can be used to reduce the noise exposure of people with hearing loss without compromising their ability to understand speech.

scholarly journals Binaural Speech Intelligibility in a Real Elementary Classroom

2021 ◽  
Vol 2069 (1) ◽  
pp. 012165
Author(s):  
G Minelli ◽  
G E Puglisi ◽  
A Astolfi ◽  
C Hauth ◽  
A Warzybok
Keyword(s):  
Speech Intelligibility ◽  
Noise Source ◽  
Signal To Noise Ratio ◽  
Spatial Separation ◽  
Elementary Classrooms ◽  
Acoustic Environment ◽  
Acoustic Measures ◽  
Speech Reception ◽  
Speech Intelligibility Model ◽  
Speech Reception Thresholds

Abstract Since the fundamental phases of the learning process take place in elementary classrooms, it is necessary to guarantee a proper acoustic environment for the listening activity to children immersed in them. In this framework, speech intelligibility is especially important. In order to better understand and objectively quantify the effect of background noise and reverberation on speech intelligibility various models have been developed. Here, a binaural speech intelligibility model (BSIM) is investigated for speech intelligibility predictions in a real classroom considering the effect of talker-to-listener distance and binaural unmasking due to the spatial separation of noise and speech source. BSIM predictions are compared to the well-established room acoustic measures as reverberation time (T30), clarity or definition. Objective acoustical measurements were carried out in one Italian primary school classroom before (T30= 1.43s±0.03 s) and after (T30= 0.45±0.02 s) the acoustical treatment. Speech reception thresholds (SRTs) corresponding to signal-to-noise ratio yielding 80% of speech intelligibility will be obtained through the BSIM simulations using the measured binaural room impulse responses (BRIRs). A focus on the effect of different speech and noise source spatial positions on the SRT values will aim to show the importance of a model able to deal with the binaural aspects of the auditory system. In particular, it will be observed how the position of the noise source influences speech intelligibility when the target speech source lies always in the same position.

The Effects of Expansion on the Objective and Subjective Performance of Hearing Instrument Users

2005 ◽  
Vol 16 (02) ◽  
pp. 101-113 ◽  
Author(s):  
Patrick N. Plyler ◽  
Ashley Blair Hill ◽  
Timothy D. Trine
Keyword(s):  
Hearing Loss ◽  
Daily Basis ◽  
Expansion Ratio ◽  
Connected Speech ◽  
Speech Test ◽  
Hearing In Noise ◽  
Objective Performance ◽  
Expansion Condition ◽  
Preference Ratings ◽  
Noise Test

The present study investigated the effects of expansion on the objective and subjective performance of 20 hearing instrument users fitted binaurally with digital ITE products. Objective performance was evaluated in quiet using the Connected Speech Test and in noise using the Hearing in Noise Test. Subjective performance was evaluated in two ways: (a) by having each participant rate their satisfaction regarding the amount of noise reduction they perceived in each expansion condition on a daily basis and (b) by having each participant indicate which expansion condition they preferred following the completion of a two-week trial. Results indicated that expansion significantly reduced low-level speech perception performance; however, satisfaction and preference ratings significantly increased when using expansion. The effect of degree of hearing loss, expansion kneepoint, and expansion ratio on the effectiveness of expansion for a given listener was discussed.

scholarly journals The Effect of Dynamic Pitch on Speech Recognition in Temporally Modulated Noise

2017 ◽  
Vol 60 (9) ◽  
pp. 2725-2739 ◽  
Author(s):  
Jing Shen ◽  
Pamela E. Souza
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Normal Hearing ◽  
Individual Factors ◽  
Temporal Modulation ◽  
Hearing Sensitivity ◽  
Speech Reception ◽  
Speech Reception Thresholds ◽  
The Individual ◽  
Speech Recognition In Noise

PurposeThis study investigated the effect of dynamic pitch in target speech on older and younger listeners' speech recognition in temporally modulated noise. First, we examined whether the benefit from dynamic-pitch cues depends on the temporal modulation of noise. Second, we tested whether older listeners can benefit from dynamic-pitch cues for speech recognition in noise. Last, we explored the individual factors that predict the amount of dynamic-pitch benefit for speech recognition in noise.MethodYounger listeners with normal hearing and older listeners with varying levels of hearing sensitivity participated in the study, in which speech reception thresholds were measured with sentences in nonspeech noise.ResultsThe younger listeners benefited more from dynamic pitch for speech recognition in temporally modulated noise than unmodulated noise. Older listeners were able to benefit from the dynamic-pitch cues but received less benefit from noise modulation than the younger listeners. For those older listeners with hearing loss, the amount of hearing loss strongly predicted the dynamic-pitch benefit for speech recognition in noise.ConclusionsDynamic-pitch cues aid speech recognition in noise, particularly when noise has temporal modulation. Hearing loss negatively affects the dynamic-pitch benefit to older listeners with significant hearing loss.

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