speech sciences deal with the acoustical characteristics of speech by means of sophisticated soft wares as well as hard wares. although, a speech science is a well known science in the developed countries, especially the western societies, however, it has been remained almost unknown in iran, though, in recent years a group of scholars have been involved in this branch of science. the applicati...

The occurrence of voice disorder and of non-modal phonation were measured in the speech of 53 children. Thirty seven monolingual English speaking children with developmental speech disorder and compared with that in 16 age-matched children with normal speech development. The children’s ages ranged from 4 to 6 years. The speech disordered children were further assigned to 3 subgroups according t...

background:  speech is the most important aspect of development that related to central nervous system maturation in cognitive sensory motor domain. disorders of speech may disrupt other aspects of development. the study aimed to investigate the prevalence of speech disorders among primary schoolchildren in kermanshah during 2008-9. methods: six hundred schoolchildren from three educational reg...

The society is fully aware of the needs of impaired people. One such impairment resulting due to articulatory or congenital conditions in human speech production mechanism produces a disordered speech. This disordered speech is difficult to interpret and leads to miscommunication. Thus, the speech enabled helping aid is a good alternative to existing devices designed to assist the impaired spea...

This paper introduces a pronunciation verification method to be used in an automatic assessment therapy tool of child disordered speech. The proposed method creates a phonebased search lattice that is flexible enough to cover all probable mispronunciations. This allows us to verify the correctness of the pronunciation and detect the incorrect phonemes produced by the child. We compare between t...

This paper describes the development of a voice-input voice-output communication aid (VIVOCA) for people with disordered or unintelligible speech, initially concentrating on people with severe dysarthria. The VIVOCA is intended to recognize and interpret an individual’s disordered speech and speak out an equivalent message in clear synthesized speech. User consultation suggests that such a devi...

Vowel prolongation is often used to evaluate disordered voice production. In light of previous findings showing that co-articulation has significant influence on laryngeal function measures, the practice of using prolonged vowels to represent a speech sample is questioned. To test whether disordered and normal voice during vowel production is generalizable to connected speech, three speaking ta...

It is noted that much previous work in phonology has attempted to provide economical theories of sound systems without explicitly attempting to provide theories that have psycholinguistic validity. The work of Bybee on a cognitive approach to phonology is described, and its possible application to disordered speech is considered. It is discussed that cognitive phonology, coupled with gestural p...