Objectives: This paper studies the effect of Persian Cued Speech on the perception of Persian language phonemes and monosyllabic words with and without sound in hearing impaired children. Cued Speech is a sound based mode of communication for hearing impaired people that is comprised of a limited series of hand complements and the normal pattern of speech. And it is shown that it effectively ca...

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 ...

In general, speech synthesis using the source-filter model of speech production requires the classification of speech into two classes (voiced and unvoiced) which is prone to errors. For voiced speech, the input of the synthesis filter is an approximately periodic excitation, whereas it is a noise signal for unvoiced. This paper proposes an excitation model which can be used to synthesise both ...

Neologism and private usage of stock words have long been considered as uncommon disorders of schizophrenic thought and speech.however,,a review of current literature and psychiatric textbooks reveals few clinical examples.in this article a paranoid  schizophrenic patient with extensive speech disorder has been presented and his neologistic production,private meaning of stoch words and other sp...

Computer graphics is vital for the depiction of life-like agents for computer interfaces and visual entertainment systems. This paper develops a realistic graphical model of the human face capable of synthesizing facial expressions in natural conversation scenarios. In particular, we propose a facial muscle model that includes oral musculature for controlling mouth shapes during speech producti...

How fast speakers can change pitch voluntarily is potentially an important articulatory constraint for speech production. Previous attempts at assessing the maximum speed of pitch change have helped improve understanding of certain aspects of pitch production in speech. However, since only "response time"--time needed to complete the middle 75% of a pitch shift--was measured in previous studies...

this paper introduces a novel approach to improve performance of speech recognition systems using a combination of features obtained from speech reconstructed phase space (rps) and frequency domain analysis. by choosing an appropriate value for the dimension, reconstructed phase space is assured to be topologically equivalent to the dynamics of the speech production system, and could therefore ...