We are investigating acoustical analysis for dysarthric speech, which appears as a symptom of neurologic disease, in order to elucidate its physiological and acoustical mechanism, and to develop aids for diagnosis and training, etc. In this report, acoustical characteristics of various kinds of dysarthrias are measured. As a result, shrinking of the F0 range as well as vowel space are observed ...

background and aim: age implantation is one of the effective factors on speech production outcomes in cochlear implanted (ci) children. the purpose of this study is to determine the role of age implantation on formant frequencies and production of three persian vowels including /a/, /u/, /i/ in ci children. methods: sixty nine congenitally deaf children who received ci were divided into three g...

The experiment reported here explores the ability of 4- to 5-day-old neonates to discriminate consonantal place of articulation and vowel quality using shortened CV syllables similar to those used by Blumstein and Stevens [J. Acoust. Soc. Am. 67, 648-662 (1980)], without vowel steady-state information. The results show that the initial 34-44 ms of CV stimuli provide infants with sufficient info...

In this paper we analyzed some of the phonological rules of Russian loanword adaptation in Persian, on the view of Optimal Theory (OT) (Prince and Smolensky, 1993, 2003). It is the first study of phonological process on Russian loanwords adaptation in Persian. By gathering about 50 current Russian loanwords, we selected some of them to analyze. We found out that vowel insertion, vowel prothesis...

The present discussion re-opens an old issue that was ‘officially discussed’ in Kiel in 1989 but has not been offered for debate in the wider phonetic community. It is argued that there is a logical and practical gap in the present IPA vowel chart. The lack of a central open vowel is unsatisfactory, in particular because more languages have a single open vowel with an apparently more central th...

It is often suggested that languages are likely to ‘compensate’ complexity in one subsystem by simplicity elsewhere. In this paper evidence against this idea is presented by examining several subsystems of the basic phonology in a set of over 600 languages selected to represent genetic and areal diversity. The relationships between elaboration of the syllable canon, the size of segment inventor...

The vowel quality in some diphthongs of Swabian (an upper German dialect) was determined by measurement of first and second formant values. A minimal contrast could be shown between two different diphthong qualities /Ae/ and /«i/, where for Standard German only one is assumed, viz. /ai/. The two diphthong qualities differ only slightly in onset and offset vowel quality, so a better understandin...

Ten listeners were asked to identify and rate the quality of speech sounds processed in such a way that only the most energetic spectral components were retained. The influence of both the number of retained spectral components and of the width of the frequency bands surrounding these components was studied. The sounds consisted of vowel-consonant-vowel stimuli produced by two male and two fema...

this article addresses the perceptual correlates of compensatory lengthening in persian. in a perception experiment, duration, spectral tilt measurements h1-h2 and h1-f1 and f0 were varied in several steps based on the results from a production experiment (sadeghi, 2007). subjects were asked to identify the tokens involving vowel length. results revealed that duration is the most reliable perce...