In this paper, we report the results of an experimental study of the acoustic and articulatory features of the gemination in Modern Arabic language, pronounced by Algerian speakers. To extract the feature characteristics, we have carried out an acoustic analysis by computing the values of frequency formants, energy and durations of the consonants and subsequent vowels in the various [VCV] and [VCgV] utterances (Cg: geminate consonant). For the articulatory analysis, a range of kinematics parameters were analyzed from the phoneme productions including movement trajectories, distance, velocity, and duration of tongue movements. Among the most important results, we note a longer duration of the vowel following a geminate consonant, a decreasing in levels of F1 and F2 formants and a rising in level of F3 formant of this vowel.
Background: Total Laryngectomy is a mode of treatment of patients with advanced laryngeal cancer. It affects the voice and the speech communication.Objective: To present an acoustic analysis of the new voice after total laryngectomy in Algerian hospital environment. Methods: A corpus of sounds was collected from October 2008 to September 2009 and pronounced by eight male speakers who have undergone total laryngectomy. Minimum age of patients was 47 years and maximum age was 59 years with mean age 54.87 years. Recordings were made before the beginning of reeducation and after three, six, and eleven months using esophageal voice. The acoustic analysis includes the Pitch F 0 (Hz), Formants, intensity, Jitter (%), Shimmer (dB), harmonic to noise ratio HNR (dB), and degree of unvoiced frames DUF (%). Results: We note a restriction in F 0 , increasing of Jitter and Shimmer, decreasing of HNR values, and reduced intensity compared to the voice of normal laryngeal speakers. In addition, we note a higher percentage of DUF during the pronunciation of sustained vowels. Conclusion: Some deficiencies were reported in the taking care of patients. Therefore, the acoustic analysis may be used in evaluating the reliability of the technique of reeducation.
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