New Turkish intelligibility test for assessing speech communication systems

Palaz, Hasan; Bicil, Yucel; Kanak, Alper; Dog̃an, Mehmet Ug̃ur

doi:10.1016/j.specom.2005.04.005

Cited by 4 publications

(5 citation statements)

References 4 publications

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“…Therefore, Turkish phoneme sets and Turkish word pairs or word groups [35] were used. In the literature, there are some studies for developing Turkish intelligibility tests [35,36]. However, those studies were developed only for the DRT [37].…”

Section: Properties Of Hlsmentioning

confidence: 99%

Evaluation of hearing loss simulation using a speech intelligibility index

Arioz¹,

Günel²

2016

Turk J Elec Eng & Comp Sci

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Abstract:Hearing loss simulation (HLS) is a useful tool for hearing studies, since finding large numbers of hearingimpaired volunteers with various levels of hearing loss is usually a problem. Correct simulation of the hearing impaired ear should take into account different suprathreshold effects, such as reduced frequency selectivity, reduced audibility, and loudness recruitment. Although these effects can be implemented using various algorithms, so far they have not been evaluated in detail taking into account subject dependency, effect of noisy environment, and phonetic characteristics of test words. In this study, for the purpose of evaluating the HLS, a speech intelligibility index (SII) was used as the objective measure and a modified rhyme test (MRT) was used as the subjective measure. Hearing loss of 12 subjects was simulated using various stimuli and 36 subjects with normal hearing were used as a control group. The factors that affect the performance of HLS algorithms were initially determined using the SII metric. Three other factors (sex of speaker, background noise level, and characteristics of the words) were tested both by the SII metric and the MRT. The lists contained word groups designed according to Turkish phonetic characteristics. In addition, the results of the MRT were compared with the results of the SII for both original and simulated sounds. According to the mean values and correlation analysis, both measures gave similar and reliable results for the HLS (58.40 and 57.37 for MRT mean values of unprocessed and simulated sounds, respectively; 0.23 for MRT mean values of unprocessed and processed sounds; 58% and 74% correlation coefficients for MRT and SII, respectively). When statistical significances of the measures were taken into account, the MRT gave more reliable results than the SII. While sounds were simulated in a satisfactory manner in both the noise-free environment and noisy environment for the MRT, similar results for the SII were obtained only in the noise-free environment. Because of high sensitivity of the SII to noise, the results were not satisfactory for the noisy cases. After the simulation, sex of the speaker and test list factors were found to be significant with the noise factor for the MRT.

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Section: Properties Of Hlsmentioning

confidence: 99%

Evaluation of hearing loss simulation using a speech intelligibility index

Arioz¹,

Günel²

2016

Turk J Elec Eng & Comp Sci

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“…These lists provide to observe the effect of word structure on their intelligibility with the effect of their hearing impairments and to measure the subject's ability to use acoustic information of Turkish language [15]. To prevent memorizing the words, the order of words both in the list and within the word groups were randomly mixed.…”

Section: Mrt Study Designmentioning

confidence: 99%

Optimization of Frequency Lowering Algorithms for Getting the Highest Speech Intelligibility Improvement by Hearing Loss Simulation

Arioz

Günel

2015

J Med Syst

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High frequency hearing loss is a growing problem for both children and adults. To overcome this impairment, different frequency lowering methods (FLMs) were tried from 1930s, however no satisfaction was provided up to now. In this study, for getting higher speech intelligibility, eight combinations of FLMs which were designed originally were tried with simulated sounds onto normal hearing subjects. These improvements were calculated by the difference with standard hearing aid method, amplification. High frequency hearing loss was simulated with the combined suprathreshold effects. An offline study was carried out for each subject for determining the significant methods used in modified rhyme test (MRT) (Subjective measure for intelligibility). Significant methods were determined according to their speech intelligibility index (SII) (Objective measure for intelligibility). All different cases were tried under four noisy environments and a noise free environment. Twelve hearing impaired subjects were simulated by hearing loss simulation (HLS). MRT was developed for Turkish language as a first time. As the results of improvements, total 71 cases were statistically significant for twelve subjects. Eighty-three percent success of FLMs was achieved against amplification for being an alternative method of amplification in noisy environments. For four subjects, all significant methods gave higher improvements than amplification. As conclusion, specific method recommendations for different noisy environments were done for each subject for getting more speech intelligibility.

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“…Swedish word list have also been developed by [18] which modified the method first introduced by [19] which shorten the time needed for diagnostics. To assess the quality of Turkish speech communication system, [20] have developed a Turkish word list which is based on earlier English intelligibility test, the Diagnostic Rhyme Test [21]. Although not specifically a word list, German also developed list of sentences to be used for intelligibility test.…”

Section: Speech Intelligibilitymentioning

confidence: 99%

“…Malay, which is spoken by 250 million people [23], has only about 500 monosyllables and half of it consists of loan words from other languages, especially English [24]. This effectively the limits the use of diagnostic rhyme test since the test requires a sizeable portion of monosyllabic words even though it is considered to mimic everyday speech [20]. The most common form of words in Malay is of disyllabic type.…”

Section: Speech Intelligibilitymentioning

confidence: 99%

Determination of Bahasa Melayu Word List From Friday Sermon Transcripts Using PHP and MySQL

et al. 2013

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Almost all of the speech intelligibility (SI) assessors today are from the West. The words used in the development of these SI assessors are mainly English. However, recent finding has found that word components that contribute to intelligibility of speech is different from one language to another. The purpose of this study is to determine Bahasa Melayu (BM) word list from Friday sermon transcripts. The project was undertaken by deriving BM words spoken during 52 Friday sermons read in mosques in Wilayah Persekutuan Kuala Lumpur. PHP is the programming language used to compute the frequency of words appears in the Friday sermon transcripts. These words were then stored into a database. The database used is MySQL. It has been found that the highest number of repeated word is 2509. The list is then truncated so that the numbers of repeated words range from 52 to 2509 times. The frequency of Bahasa Melayu words used in Friday sermons is an initial and important inventory that can be used in the development of SI assessor using BM words.

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New Turkish intelligibility test for assessing speech communication systems

Cited by 4 publications

References 4 publications

Evaluation of hearing loss simulation using a speech intelligibility index

Evaluation of hearing loss simulation using a speech intelligibility index

Optimization of Frequency Lowering Algorithms for Getting the Highest Speech Intelligibility Improvement by Hearing Loss Simulation

Determination of Bahasa Melayu Word List From Friday Sermon Transcripts Using PHP and MySQL

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