Production of word-initial fricatives of Mandarin Chinese in prelingually deafened children with cochlear implants

Yang, Jing; Vadlamudi, Jessica; Yin, Zhong; Lee, Chao‐Yang; Xu, Li

doi:10.3109/17549507.2016.1143972

Cited by 12 publications

(4 citation statements)

References 43 publications

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“…For fricative productions, due to the presence of background noise at low-frequency regions that might interfere with acoustic analysis, all fricative samples were high-pass filtered at 1000 Hz using a sixth order Butterworth filter. Then, a set of seven acoustic measures (i.e., spectral peak, rise time, normalized amplitude, spectral mean, spectral variance, spectral skewness, and spectral kurtosis) were obtained using a custom MATLAB program (Lee et al, 2014;Yang et al, 2017). The rise time was defined as the time interval from the onset of frication to the maximum amplitude of frication noise (Dorman et al, 1980;Mahmoodzade and Bijankham, 2007).…”

Section: Acoustic Measurementsmentioning

confidence: 99%

“…The normalized amplitude was defined as the difference in dB between the root-meansquare (RMS) amplitude of the entire portion of frication and the RMS amplitude of the entire portion of the following vowel (Fox and Nissen, 2005;Jongman et al, 2000). The spectral peak, spectral mean, spectral variance, spectral skewness, and spectral kurtosis were all computed based on a 40-ms full Hamming window in the middle portion of frication (Jongman et al, 2000;Lee et al, 2014;Yang et al, 2017). Figure 2 shows the mean vowel formant trajectories of all speakers in both unprocessed and all six processed conditions.…”

Section: Acoustic Measurementsmentioning

confidence: 99%

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Effects of nonlinear frequency compression on the acoustic properties and recognition of speech sounds in Mandarin Chinese

Yang

Qian

Chen

et al. 2018

The Journal of the Acoustical Society of America

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The present study examined the change in spectral properties of Mandarin vowels and fricatives caused by nonlinear frequency compression (NLFC) used in hearing instruments and how these changes affect the perception of speech sounds in normal-hearing listeners. Speech materials, including a list of Mandarin monosyllables in the form of /dV/ (12 vowels) and /Ca/ (five fricatives), were recorded from 20 normal-hearing, native Mandarin-speaking adults (ten males and ten females). NLFC was based on Phonak SoundRecover algorithms. The speech materials were processed with six different NLFC parameter settings. Detailed acoustic analysis revealed that the high front vowel /i/ and certain compound vowels containing /i/ demonstrated positional deviation in certain processed conditions in comparison to the unprocessed condition. All five fricatives showed acoustic changes in spectral features in all processed conditions. Fourteen Mandarin-speaking, normal-hearing adult listeners performed phoneme recognition with the six NLFC processing conditions. When the cut-off frequency was set relatively low, recognition of /s/ was detrimentally affected, whereas none of the NLFC processing configurations affected the other phonemes. The discrepancy between the considerable acoustic changes and the negligible adverse effects on perceptual outcomes is partially accounted for by the phonology system and phonotactic constraints in Mandarin.

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Section: Acoustic Measurementsmentioning

confidence: 99%

Section: Acoustic Measurementsmentioning

confidence: 99%

Effects of nonlinear frequency compression on the acoustic properties and recognition of speech sounds in Mandarin Chinese

Yang

Qian

Chen

et al. 2018

The Journal of the Acoustical Society of America

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“…Speech production ability and language development of CI users, especially of those children with prelingual deafness, have been the major focus of the postoperative rehabilitation process. Detailed acoustic analyses of the production of vowels and fricatives in CI children have shown significant progress in phoneme development, but there are still significant remaining deficits in speech production in those children ( Uchanski and Geers, 2003 ; Yang et al, 2015 , 2017a ; Yang and Xu, 2017 ). For CI children who speak tonal languages, such as Mandarin Chinese, speech production is compounded by the involvement of lexical tones.…”

Section: Introductionmentioning

confidence: 99%

“…Because of the absence of effective auditory feedback, prelingually deafened children would likely rely on visual or somatosensory inputs to establish a feedback connection with their vocal production ( Tobey et al, 1991 ; Osberger et al, 1993 ; Nava et al, 2014 ; Selleck and Sataloff, 2014 ). With their auditory function partially restored with CIs, prelingually deafened children still face challenges in their speech production ( Uchanski and Geers, 2003 ; Yang et al, 2015 , 2017a ; Yang and Xu, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Acoustic Assessment of Tone Production of Prelingually-Deafened Mandarin-Speaking Children With Cochlear Implants

et al. 2020

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Objective The purpose of the present study was to investigate Mandarin tone production performance of prelingually deafened children with cochlear implants (CIs) using modified acoustic analyses and to evaluate the relationship between demographic factors of those CI children and their tone production ability. Methods Two hundred seventy-eight prelingually deafened children with CIs and 173 age-matched normal-hearing (NH) children participated in the study. Thirty-six monosyllabic Mandarin Chinese words were recorded from each subject. The fundamental frequencies (F0) were extracted from the tone tokens. Two acoustic measures (i.e., differentiability and hit rate) were computed based on the F0 onset and offset values (i.e., the tone ellipses of the two-dimensional [2D] method) or the F0 onset, midpoint, and offset values (i.e., the tone ellipsoids of the 3D method). The correlations between the acoustic measures as well as between the methods were performed. The relationship between demographic factors and acoustic measures were also explored. Results The children with CIs showed significantly poorer performance in tone differentiability and hit rate than the NH children. For both CI and NH groups, performance on the two acoustic measures was highly correlated with each other ( r values: 0.895–0.961). The performance between the two methods (i.e., 2D and 3D methods) was also highly correlated ( r values: 0.774–0.914). Age at implantation and duration of CI use showed a weak correlation with the scores of acoustic measures under both methods. These two factors jointly accounted for 15.4–18.9% of the total variance of tone production performance. Conclusion There were significant deficits in tone production ability in most prelingually deafened children with CIs, even after prolonged use of the devices. The strong correlation between the two methods suggested that the simpler, 2D method seemed to be efficient in acoustic assessment for lexical tones in hearing-impaired children. Age at implantation and especially the duration of CI use were significant, although weak, predictors for tone development in pediatric CI users. Although a large part of tone production ability could not be attributed to these two factors, the results still encourage early implantation and continual CI use for better lexical tone development in Mandarin-speaking pediatric CI users.

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Articulation distortion in Mandarin-speaking individuals with complete arch maxillary implant-supported fixed dental prostheses

Zhang,

Liu,

et al. 2023

The Journal of Prosthetic Dentistry

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Production of word-initial fricatives of Mandarin Chinese in prelingually deafened children with cochlear implants

Abstract: In general, these results indicate that the CI children have not established distinct categories for the Mandarin fricatives in terms of the place of articulation.

Cited by 12 publications

References 43 publications

Effects of nonlinear frequency compression on the acoustic properties and recognition of speech sounds in Mandarin Chinese

Effects of nonlinear frequency compression on the acoustic properties and recognition of speech sounds in Mandarin Chinese

Acoustic Assessment of Tone Production of Prelingually-Deafened Mandarin-Speaking Children With Cochlear Implants

Articulation distortion in Mandarin-speaking individuals with complete arch maxillary implant-supported fixed dental prostheses

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