Promoting communicative interactions, while simultaneously drawing students’ attention to language form, is considered as a potentially significant area of research in second language acquisition. This study focuses on the effect of transcribing task, as an autonomous noticing activity, on intermediate and advanced EFL learners' grammatical accuracy. The study was conducted in two advanced and ...

The triphone model is frequently used as an acoustic model. It is effective for modeling phonetic variations caused by coarticulation. However, it is known that acoustic features of phonemes are also affected by other factors such as speaking style and speaking speed. In this paper, a new acoustic model is proposed. All training data which have the same phoneme context are automatically cluster...

We have seen that the accuracy of methods for computing integrals or derivatives of a function f(x) depends on the spacing between points at which f is evaluated, and that the approximation tends to the exact value as this spacing tends to 0. Suppose that a uniform spacing h is used. We denote by F (h) the approximation computed using the spacing h, from which it follows that the exact value is...

Abstract— There are several works dedicated to the investigation of Volterra integro-differential equations. In addition, there are theoretical and practical representations of stable methods that have a high order of accuracy and extended stability regions; these representations were constructed using the minimum values of arithmetic operations. Here, hybrid methods are proposed for the constr...

abstract the present study examined the effect of genre-based tasks on efl learners' speaking performance and probed whether genre-based tasks may empower efl learners to perform better on speaking tests. a further concern of the study was to explore whether the effect of genre-based tasks on speaking ability of efl learners varied across different age groups, i.e. teenagers (13-16 years o...

I investigated a method for facial expression recognition for a human speaker by using thermal image processing and a speech recognition system. In this study, we improved our speech recognition system to save thermal images at the three timing positions of just before speaking, and just when speaking the phonemes of the first and last vowels. With this method, intentional facial expressions of...

In this paper, we describe an approach for an animated speaking face synthesis and its application in modeling impostor/replay attack scenarios for face-voice based speaker verification systems. The speaking face reported here learns the spatiotemporal relationship between speech acoustics and MPEG4 compliant facial animation points. The influence of articulatory, perceptual, and prosodic acous...

This is an experimental study which aimed at investigating the ralationsship between working memory capacity and measures of L2 speech performance in a picture description task. The main assumption underlying the present study was that L2 speaking is a complex cognitive task which is carried out within the constraints of a limited-capacity system, namely, working memory. In this system, there a...

In this paper we explore a learning-based approach to the problem of predicting language impairment in children. We analyzed spontaneous narratives of children and extracted features measuring different aspects of language including morphology, speech fluency, language productivity and vocabulary. Then, we evaluated a learning-based approach and compared its predictive accuracy against a method...

The vital role individual differences, such as personality variation, play has long been discussed as the origin of different learning abilities. Accordingly, a cross-sectional survey and a descriptive study was conducted. Data was gathered from a sample of 150 students of both genders (107 females and 43 males) with an age range of 19-22. The translated and validated versions of the Big Five p...