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Results for “Speech Reception Threshold Test”

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At least 19 recordsLinked to original sources
PubMed1980

The development of a picture speech reception threshold test in Spanish for use with urban U.S. residents of Hispanic background.

The need for an development of a test for measurement of Speech Reception Threshold (SRT) in Spanish are described. The test consists of 51 familiar bisyllabic words, some of which are cognates of English. The aim is development of a test, the vocabulary and procedure of which could be used with patients of diverse Hispanic backgrounds, and for which the administering audiologist need not be able to speak or understand Spanish.

Hispanic or Latino↗
PubMed2005

Psychometrically equivalent trisyllabic words for speech reception threshold testing in Mandarin.

The aim of this investigation was to develop, digitally record, evaluate, and equate Mandarin trisyllabic words, which could then be used to measure the SRT. A selection of 90 frequently utilized trisyllabic words were digitally recorded by male and female talkers of Standard Mandarin and presented to 20 normally hearing subjects at 13 intensity levels (-10 to 14dB HL) in 2dB increments. Using logistic regression, psychometric functions were then calculated for all words. Twenty-four trisyllabic words with steep psychometric function slopes were selected, and their intensities were digitally adjusted to match the mean subject PTA (3.0 dB HL). The mean slopes for the 24 selected male and female trisyllabic Mandarin Chinese words were 11.3%/dB and 12.1%/dB, respectively. Thus we developed a list of words which were homogeneous with respect to audibility and slope. Digital recordings of the psychometrically equivalent trisyllabic words are available on compact disc.

Adult↗
PubMedDate not supplied

Improving the reliability of testing the speech reception threshold for sentences.

An accurate test for measuring the speech reception threshold (SRT) for sentences in quiet or in noise has been developed. It is shown that with ten carefully selected lists of only 13 sentences each, a high test-retest reliability can be obtained. The standard deviation of SRT measured with the different lists is approximately 1 dB.

Humans↗
PubMed2000

Measuring the threshold for speech reception by adaptive variation of the signal bandwidth. II. Hearing-impaired listeners.

In a previous study [Noordhoek et al., J. Acoust. Soc. Am. 105, 2895-2902 (1999)], an adaptive test was developed to determine the speech-reception bandwidth threshold (SRBT), i.e., the width of a speech band around 1 kHz required for a 50% intelligibility score. In this test, the band-filtered speech is presented in complementary bandstop-filtered noise. In the present study, the performance of 34 hearing-impaired listeners was measured on this SRBT test and on more common SRT (speech-reception threshold) tests, namely the SRT in quiet, the standard SRT in noise (standard speech spectrum), and the spectrally adapted SRT in noise (fitted to the individual's dynamic range). The aim was to investigate to what extent the performance on these tests could be explained simply from audibility, as estimated with the SII (speech intelligibility index) model, or require the assumption of suprathreshold deficits. For most listeners, an elevated SRT in quiet or an elevated standard SRT in noise could be explained on the basis of audibility. For the spectrally adapted SRT in noise, and especially for the SRBT, the data of most listeners could not be explained from audibility, suggesting that the effects of suprathreshold deficits may be present. Possibly, such a deficit is an increased downward spread of masking.

Adult↗
PubMed2003

[Usefulness of TAPS (Polish version) for evaluation of CI children's progress in speech rehabilitation--7 years of observation].

The speech rehabilitation of pre- and perilingually deafened children with cochlear implants it is a very long process. It should be individualized for needs of every young patient. It is possible only after correct evaluation of speech level. There are many tests for this evaluation. Among them same are more known like TAPS test. Test of Auditory Perception of Speech (TAPS) was elaborated in English at Basel University in Swiss. It was translated to Polish at Adam Mickiewicz University and Karol Marcinkowski University School of Medical Sciences in Poznań. The authors present their own 7-years observations.

Child↗
PubMedDate not supplied

Electrodermal audiometry: renewed acquaintance with an old friend.

Reasonable requirements for any test of nonorganic hearing impairment are that the procedure should result in both identification of a nonorganic problem and an accurate determination of true organic thresholds. In our clinical experience, no hearing test meets the determination of threshold requirement as accurately and as efficiently as electrodermal audiometry (EDR). The purpose of this presentation is to offer a brief review of our recent clinical experience with EDR audiometry, including representative case histories.

Adolescent↗
PubMedDate not supplied

Field trials using a digital hearing aid with active noise reduction and dual-microphone directionality.

In this study, we measured the effects of a digital hearing aid on speech recognition or reception in noise for two noise reduction concepts: active noise reduction by speech-sensitive processing (SSP) and improved directionality by a dual- or so-called twin-microphone system (TMS). This was conducted in a well-controlled clinical field trial in 16 hearing-aid users, using a single-blind crossover design. The hearing aid fitting was controlled by insertion gain measurements and measurements with loudness scaling. This study combined laboratory experiments with three consecutive field trials of 4 weeks each. We used performance measurements (speech recognition tests in background noise), paired comparisons, and self-report measurements (questionnaires). The speech recognition or reception tests were performed before and after each field trial, the paired comparisons were performed in weeks 4 and 12, and the questionnaires were administered after each field trial. For all subjects, results were obtained for three different settings: no noise reduction, SSP alone, and TMS alone. In the last week, we also performed speech recognition or reception tests in background noise with both noise reduction concepts combined. Three types of results have been reported: "objective" results from the critical signal to noise ratios for speech recognition or reception in different background noises for different settings and "subjective" results: paired comparisons and questionnaires. The subjective scores show the same trend as the objective scores. The effects of TMS were clearly positive, especially for the speech reception threshold tests and for the paired comparisons. The effects of SSP were much smaller but showed significant benefits with respect to aversiveness and speech perception or reception in noise for specific acoustical environments. There was no extra benefit from the combined effect of SSP and TMS relative to TMS alone.

Adult↗
PubMed1991

Is intraperitoneal tobramycin ototoxic in CAPD patients?

In 40 CAPD patients treated for peritonitis, the authors did a prospective study of ototoxic effects of intraperitoneal tobramycin. They evaluated cochlear function in pure-tone threshold audiograms over a range of frequencies from 250-10,000 Hz, in the speech-reception threshold test and in the speech-discrimination test. These tests were performed within 48 hours of initiation of tobramycin treatment and within 2 or 3 weeks of the drug's discontinuation. With the aminoglycoside doses used in this study, no statistical difference between the mean baseline and mean follow-up hearing levels was seen in these 40 patients. However, according to the standard criteria of ototoxicity, the hearing in 10 of 40 patients (25%) deteriorated after tobramycin, while it improved in seven patients (17.5%). In the remaining 23 (57.5%), hearing remained stable. With respect to the risk factors for ototoxicity such as advanced age, increased duration of treatment, elevated plasma aminoglycoside levels, concomitant treatment with other ototoxic drugs, pre-existing hearing loss, renal dysfunction and hyperthermia, no statistically significant difference was demonstrated between the patients with deteriorated, stable or improved hearing. The results of this study do not confirm that tobramycin given intraperitoneally to CAPD patients produces auditory toxicity. The hearing deterioration observed in 10 patients may be due to synergistic factors. The improvement observed in 7 patients could not be explained.

Audiometry, Pure-Tone↗
PubMedDate not supplied

Audiological manifestations in "split brain" patients.

Traditional peripheral hearing tests (pure-tone thresholds, speech reception thresholds, and speech discrimination) and selected "central" hearing tests were administered to three commissurotomized patients. One patient was tested both pre-and postoperatively, whereas the remaining two were tested only postsurgery. Results indicated that commissurotomy had no apparent effects on performance on the peripheral tests. However, various tests in the central battery showed definite abnormal results. Most significant were the results from dichotically presented speech stimuli which repeatedly showed total absence of responses for stimuli presented to the left ear. Additional experimentation indicated this monaural deficit could be overcome by reducing the intensity level of right ear stimuli. Results for low-redundancy, monotically presented speech stimuli also indicated a left ear deficit; however, these results were not as consistent as the dichotic data.

Adolescent↗
PubMed1986

A modified spondee threshold procedure.

Since Martin and Sides (Asha, 1985, 27, 29-36) found that only 6% of audiologists reported actually following current ASHA guidelines for SRT testing (Asha, 1979, 21, 353-356), a comparison was made on 36 normal-hearing adults of spondee thresholds (ST) collected following strictly those guidelines (ST1) and by an experimental procedure based on the ASHA guidelines for pure-tone audiometry (Asha, 1978, 20, 297-301) (ST2). A 3-frequency pure-tone average (PTA) was also collected. Since mean HTLs differed by less than or equal to 5 db among ST1, ST2, and PTA, both ST procedures appear equally valid and interchangeable, but ST2 was considerably more efficient, requiring less time (mean savings of 139 sec/ear) and fewer word presentations (mean savings of 15 words/ear). The ST2 procedure may have clinical use with no significant compromise in validity.

Adult↗
PubMed1990

Audiovestibular functions in rheumatoid arthritis.

Audiologic, middle ear impedance and vestibular function tests were administered to 25 patients with classical or definite rheumatoid arthritis and 25 normal control subjects of 30 to 50 years age group. Any possible influence of other common causes of hearing loss was avoided by carefully selecting the patients. Six patients had mild sensorineural hearing loss and another had bilateral mixed hearing loss. Results of tone decay test, speech reception threshold, speech discrimination score and short increment sensitivity index tests suggested cochlear pathology being responsible for the sensorineural hearing loss. There was no statistical correlation between hearing loss or otoadmittance abnormality and duration or activity of rheumatoid arthritis or positivity of rheumatoid factor. Electronystagmographic recording of saccades and bithermal caloric induced nystagmus revealed no significant abnormality.

Acoustic Impedance Tests↗
PubMed1984

Some aspects of methodology in speech audiometry.

The aim of this study was to provide more knowledge about the influence of various factors on the reliability of speech audiometric measurements. On the basis of these data, new material on speech has also been developed for measurements of the speech reception threshold in noise. In a theoretical and a clinical investigation it has been shown that the reliability of speech discrimination scores may be predicted by using the binomial distribution. The reliability mainly depends on the score obtained and on the length of the word list. Curves with confidence intervals as well as diagrams which indicate when two different discrimination results deviate significantly from each other are presented. On the whole, the reliability is surprisingly poor. The reliability of speech reception threshold (SRT) measurements was studied by computer simulations and clinical studies. The SRT results of "subjects" who had poor speech discrimination were unreliable and were greatly affected by the level at which the test started. Some new methods were also simulated, one of which (the 2x4-word method) was 8% faster and also somewhat more reliable in the clinical studies than the ordinary 10-word method. It was also less affected by the patient's speech discrimination. Several speech lists with exactly the same content of sound, but with new sentences, were obtained by editing a list of ten spoken Swedish sentences in a computer. A noise was synthesized from the speech material by the computer to obtain the exact same spectrum of the speech and the noise. This material was tested monaurally on normal-hearing subjects and hearing-impaired subjects. A very steep intelligibility curve was obtained in noise (25%/dB), which gave a standard deviation of only 0.44 dB at repeated threshold measurements in noise for the normal-hearing subjects when the learning effect was outbalanced. This figure increased to 1.1 dB for those with severely impaired hearing. The learning effect between the first and the second thresholds did not exceed 1 dB. The threshold values ranged from -8 to -5 dB signal-to-noise ratio for those with normal hearing and from -7 to +7 dB for those with impaired hearing. The new sentence and noise material developed is well suited for clinical measurements of the speech reception threshold in noise.

Adult↗
PubMed1995

Auditory functions in anaesthesia residents during exposure to operating room noise.

Twenty anaesthesia residents were exposed to a pre-recorded audio cassette of operating room noise. The noise level during exposure was maintained at 77.32 +/- 1 dB (A), which was the calculated average operating room noise in our institute. Two auditory functions i.e., speech reception threshold and speech discrimination were studied before and during exposure to noise in a pre-fixed order. The right and left ears were tested separately. Speech reception threshold showed a mean increase of 23.75 +/- 6.86 dB (A) for the right ear and 26.25 +/- 6.90 dB(A) for the left ear during exposure to noise, suggesting that speech communication may be possible only by raising the voice. Speech discrimination showed a mean percentage decrease of 23.3 +/- 4.82 per cent for the right ear and 23.5 +/- 3.89 per cent for the left ear implying that there can be a steep decrease in the ability to discriminate spoken words.

Anesthesiology↗
PubMed1993

Sensorineural hearing loss associated with aortocoronary bypass surgery: a prospective analysis.

A prospective, clinical study was undertaken to assess the relationship between aortocoronary bypass surgery (ACBS) and sensorineural hearing loss (SNHL). Between August 1, 1988 and July 31, 1989, 1458 patients underwent ACBS and 181 volunteers were entered into the study based on availability and capability to complete preoperative and postoperative questionnaires and audiometric testing. One hundred forty-five patients completed the study. Intraoperative audiant brainstem response (ABR) testing was performed on 7 patients with essentially normal hearing. Although 4 patients (2.8%) reported a subjective change in hearing on postoperative questionnaires, objective testing did not confirm a significant hearing change in pure-tone, speech discrimination, or speech reception threshold testing. Acute or sudden SNHL within 2 weeks following ACBS was not identified in any patient completing the study. This study did not provide evidence to support a causal relationship between SNHL and ACBS. However, if SNHL does occur following ACBS, the well-established etiology of ototoxic therapy and subsequent SNHL demands exclusion in the absence of conflicting histopathologic information.

Aged↗
PubMed2003

[Value of preliminary hearing tests].

Investigation of hearing with whispered and colloquial speech and also tuning fork tests are used routinely by many otologists. A different group of otologists find the tests inconsistent and unreliable. This controversy has probably developed because the audiometer has replaced the tuning fork in hearing measurement. The hearing tests with the whispered and colloquial speech are also a little unsafe. However, they are important orientating hearing tests checking the result of audiometry. Some principles of the investigation of hearing with whispered and colloquial speech and the Weber- and Rinne-tuning fork test are shortly described. The necessary control of pure tone audiometry by tuning forks is pointed out. The value particularly in the diagnosis of conductive hearing loss, and the limitations of informal hearing tests and tuning forks are discussed.

Audiometry, Pure-Tone↗
PubMed1990

Degradations in frequency and temporal resolution with age and their impact on speech identification.

Measures of frequency resolution were obtained in two population samples. The first sample comprised 1764 subjects with various degrees of sensorineural hearing impairment aged from 17 to 80 years. The second sample included 229 subjects with ages between 50 and 75 years, balanced to avoid confounding the effects of impairment and age. Subjects in the second sample were also assessed using a gap-detection measure of temporal resolution and a test of speech identification using sentences in noise. In both samples, frequency resolution ability declined progressively with increasing hearing threshold level (HTL). After accounting for the effects of HTL, there was a minor dependence of frequency resolution on age, older subjects having poorer frequency resolution. Temporal resolution deteriorated with HTL but not with age. The speech identification scores could be predicted from HTL at 2 and 8 kHz and age. Frequency resolution was not a factor. Temporal resolution was only a factor when subjects with extremely poor temporal resolution were included.

Aged↗