â â â  avicenna and the arabic phonetics â â â â â  * mahmood shakib ansari â  * * alireza yusofi â â â  abstract â  avicenna, the iranian philosopher and sage, mostly famous for his scientific works such as law and the shifa has done some studies in arabic phonetics as well. besides pointing to some physical aspects of sounds in the above mentioned books, he has also written a monograph in ara...

Many studies have shown that the phonology of sign language has much in common with that of spoken language, including the existence of meaningless phonological features and feature classes, phonological constraints, rules of assimilation, and more. At the same time, the phonetics of the two language modalities is shaped in part by articulators with very different anatomical and physiological c...

The vocal tract's motion during speech is a complex patterning of the movement of many different articulators according to many different time functions. Understanding this myriad of gestures is important to a number of different disciplines including automatic speech recognition, speech and language pathologies, speech motor control, and experimental phonetics. Central issues are the accurate ...

iPA Phonetics is an iOS application based on the Laryngeal Articulator Model that illustrates voice qualities, vowel qualities, and consonant production with video/audio of articulations in the oral vocal tract and laryngoscopic video/audio and ultrasound images of the laryngeal vocal tract. The Consonant Chart is an expanded version of the 2005 IPA chart; the replay speed of consonant and vowe...

Articulator phonetics and handwriting dysfunctions are frequent observations in Parkinson’s disease (PD). In this paper we make an inductive study of speech and handwriting skills of PD patients by proposing ways for discovering prototypes of PD patients. Each discovered prototype consists of labeled cluster that combines a similar handwriting and speech skills. For this approach, a mixed acqui...

This study evaluates the effects of phrase boundaries on the intra- and intergestural kinematic characteristics of blended gestures, i.e., overlapping gestures produced with a single articulator. The sequences examined are the juncture geminate [d(#)d], the sequence [d(#)z], and, for comparison, the singleton tongue tip gesture in [d(#)b]. This allows the investigation of the process of gestura...

There is a long tradition of experimental research in the field of prosody, as different aspects of speech production and perception related to prosody have often been part of traditional laboratory and phonetics investigation. However, in recent years, the development of a set of laboratory tools to investigate language performance and its neurocognitive basis has prompted a new experimental a...

Received 13/07/92; revised 01/12/92; accepted 20/04/93 * Assistant Professor, Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University ** Lecturer, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, P.O. Box 60169, Riyadh 11545, Saudi Arabia. Address reprint requests to: Dr. M. A. Abdullah * Teledyne Hanau, P.O. Box 203,80 Sonwil D...

Virtual reality is a computer based technology linked with the future of dentistry and dental practice. The virtual articulator is one such application in prosthetic and restorative dentistry based on virtual reality that will significantly reduce the limitations of the mechanical articulator, and by simulation of real patient data, allow analyses with regard to static and dynamic occlusion as ...