Formant Frequency Characteristics of Esophageal Speech

Sisty, N. L.; Weinberg, Bernd

doi:10.1044/jshr.1502.439

Cited by 45 publications

(61 citation statements)

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“…Cinefluorographic data [50] have shown that the length of the vocal tract from the neoglottis to the lips is decreased following laryngectomy. Using acoustic analysis of vowel formant frequencies, others have also suggested that the length of the vocal tract is reduced following surgery as inferred from consistently higher vowel formant frequencies regardless of laryngectomy speaker gender [51][52][53]. It should be kept in mind that a reduction in vocal tract length does not necessarily mean a reduction in vocal tract volume.…”

Section: Te Vs Laryngeal Samplesmentioning

confidence: 99%

Magnitude and Variability of Oral Pressure in Tracheoesophageal Speech

Searl

2002

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The purpose of this study was to compare mean oral pressure (P_o) and P_o variability: (1) between tracheoesophageal (TE) and laryngeal speakers, and (2) between TE speakers’ voiced and voiceless phonemes. Sixteen TE and 10 laryngeal speakers produced stops and fricatives in a phrase while P_o was recorded. The TE group produced greater mean P_o and P_o variability than the control group. TE speakers did maintain a P_o difference between cognate members with greater pressure on voiceless consonants. A number of possible explanations for the findings are reviewed, although clearer delineation of the issue will require further study.

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Section: Te Vs Laryngeal Samplesmentioning

confidence: 99%

Magnitude and Variability of Oral Pressure in Tracheoesophageal Speech

Searl

2002

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“…Kytta [23] reported higher formant values in all Finnish vowels produced by SE speakers compared with NL speakers, with the exception of F1 of /u, o, e/. When examining the vowel production among English-speaking laryngectomees, Sisty and Weinberg [24] revealed that formant frequencies were consistently higher in the English vowels produced in [hVd] context by SE and TE speakers when compared with NL speakers. Van As et al…”

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An Acoustical and Perceptual Study of Vowels Produced by Alaryngeal Speakers of Cantonese

Chu²

2009

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Objective:The present study determines the acoustical and perceptual differences between alaryngeal and laryngeal speakers of Cantonese in the production of Cantonese vowels. Subjects and Methods:Formant frequencies (F1 and F2) associated with eight Cantonese vowels (/i, y, 3, a, q, $, œ, u/) produced by 40 alaryngeal (10 esophageal, 10 tracheoesophageal, 10 with pneumatic artificial larynx, 10 electrolaryngeal) and 10 laryngeal speakers were obtained. To assess how formants affect vowel perception, the vowels were identified by 20 naïve listeners, based on which confusion matrices were established. Results: Spectral analysis revealed that F1 and F2 values of Cantonese vowels produced by the alaryngeal speakers were significantly higher than those produced by laryngeal speakers, with the exception of F2 of /3/, /i/ and /y/ produced by alaryngeal speakers using pneumatic artificial larynx, and /3/ produced by electrolaryngeal speakers. Conclusion: The acoustic findings suggest a general shortening of the effective vocal tract length for resonance in alaryngeal speakers after laryngectomy. Percent correct identification of vowels from the perceptual experiment indicated similar error patterns in vowel identification between alaryngeal and laryngeal speaker groups. Among the different alaryngeal speaker groups, naïve listeners tended to perceive the vowels produced by electrolaryngeal speakers more accurately.

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“…In some special cases, however, these assumptions may not be valid. For example, the formant frequencies of alaryngeal speech may be significantly shifted upward due to the possible surgical shortening of the vocal tract (Sisty and Weinberg, 1972). Larynx removal may also alter other articulatory behaviors because of the disrupted muscular support for the tongue (Weinberg, 1986).…”

Section: Introductionmentioning

confidence: 99%

“…Both esophageal and tracheoesophageal types of alaryngeal speech are characterized by low average fundamental frequency and large perturbations in fundamental frequency (Robbins et al, 1984;Trudeau and Qi, 1990). Some other properties of alaryngeal speech such as formant frequencies and spectral slope may also differ significantly from normal speech (Sisty and Weinberg, 1972;Qi and Weinberg, 1991). Perceptually, alaryngeal speech is often described as rough-hoarse and strain-tense.…”

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confidence: 99%

“…Two widely used methods of restoring speech following total laryngectomy are A number of studies have addressed the physical properties of esophageal and tracheoesophageal speech (Weinberg and Bennett, 1972;Sisty and Weinberg, 1972;Bennett and Weinberg, 1973;Smith et al, 1978;Weinberg et al, 1980;Weinberg, 1982;Weinberg, 1986;Robbins et al, 1984;Nord and Hammarberg, 1989;Trudeau and Qi, 1990;Qi and Weinberg, 1991;. Both esophageal and tracheoesophageal types of alaryngeal speech are characterized by low average fundamental frequency and large perturbations in fundamental frequency (Robbins et al, 1984;Trudeau and Qi, 1990).…”

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Speech conversion and its application to alaryngeal speech enhancement

Qi²

Proceedings of Third International Conference on Signal Processing (ICSP'96)

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Formant Frequency Characteristics of Esophageal Speech

Cited by 45 publications

References 0 publications

Magnitude and Variability of Oral Pressure in Tracheoesophageal Speech

Magnitude and Variability of Oral Pressure in Tracheoesophageal Speech

An Acoustical and Perceptual Study of Vowels Produced by Alaryngeal Speakers of Cantonese

Speech conversion and its application to alaryngeal speech enhancement

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