Comparison for Speech Coding Algorithms  for Total Laryngectomies

Akdeniz, Rafet; Oktay, Mesut Oytun

doi:10.20319/mijst.2017.32.433444

Cited by 1 publication

(2 citation statements)

References 3 publications

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“…In another study concerning Turkish alaryngectomized speakers who use electrolarynx, the aim was to develop speech coding algorithms which would reduce noise of the device 29 . The results of the present study show that the general formant frequency pattern in alaryngeal speakers is compatible with the literature except for the /y/ and /i/ vowels.…”

Section: Discussionmentioning

confidence: 99%

“…Like Cervera et al's study 2 , most of the speech samples were multisyllable in the present study. Turkish is known to have a simple stress assignment rule that places primary stress on the final syllable of a word irrespective of the length of the word and weight of the syllables 29 . The differences in duration between TES and ES at the end of the word indicated the responsible mechanism for this is the aerodynamic differences between these two groups.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Temporal and Frequency Characteristics of Turkish Vowels in Laryngectomized Speakers: Preliminary Study

Aydınlı¹,

Kayikci²,

Süslü³

2019

MMJ

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Objective: In the alaryngeal speech acoustics, formant frequencies and durations of vowels are two most fundamental parameters .However, it is not clear if the vocal tract transmission properties and temporal characteristics of vowels vary related to alaryngeal speech type. The main purpose of this study is to compare the formant frequency and duration characteristics of Turkish vowels between the esophageal, tracheoesophageal, and laryngeal speakers. Methods: Formant frequency and duration values of 8 Turkish vowels have been defined and these values were compared between the esophageal, tracheoesophageal, laryngeal speakers. Detection of a formant was based on Linear Predictive Coding and Fast Fourier Transform. Results: Except the vowels /y/ and /i/; F1 and F2 frequency values of alaryngeal speakers were higher than laryngeal speakers both in the initial and final position. Alaryngeal groups' vowel space areas have been diminished. The vowels in the final position had longer durations comparing to their initial position in all groups. Conclusion: The results of this study generally supported the shorter vocal tract and frontedhigher tongue position in Turkish alaryngeal speakers. The minor differences between other studies are thought to arise from the differences in consonantal context and possible coarticulatory effects. Acoustic findings obtained in the present study, indicated that transesophageal speech is more similar to laryngeal speech as compared to esophageal speech. However, further studies including higher number of participants are needed to verify the findings of this study.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%