在英语学习中,Free talk是说的能力,书面表达是写的能力,二者互相联系又相互促进,要有机融合,才能促进英语水平的有效提高。一、初中英语书面表达现状。在初中英语质量检测中,学生词汇贫乏、句型单一、结构松散、逻辑混乱的问题普遍存...在英语学习中,Free talk是说的能力,书面表达是写的能力,二者互相联系又相互促进,要有机融合,才能促进英语水平的有效提高。一、初中英语书面表达现状。在初中英语质量检测中,学生词汇贫乏、句型单一、结构松散、逻辑混乱的问题普遍存在。第一,受母语的影响导致汉语式英语,类似“I by bike to school every day”的表达司空见惯。展开更多
A real time communication between deaf and hearing people is still a barrier that isolates the deaf people from the hearing world. Over ninety percent of deaf children are born to hearing parents. However, most of the...A real time communication between deaf and hearing people is still a barrier that isolates the deaf people from the hearing world. Over ninety percent of deaf children are born to hearing parents. However, most of them can only learn how to communicate using sign language at school. One of the reasons is that the hearings parents have neither enough time nor support to learn sign language to communicate and support their children. Not surprisingly, the deaf finds difficulties in the oral-only education. Since many other hearing pupils do not even know about the existence of sign language, they cannot communicate directly with the deaf without a sign language interpreter. Therefore, to enable a face-to-face conversation between deaf and hearing people, it is important not only to sustain real time conversation between the deaf and their hearing counterparts but also to equip the hearing with basics of sign language. However, speech to sign conversion remains a challenge due to dialectal and sign language variation, speech utterance and lack of sign language written form. In this paper, a solution named Face-to-Face Conversation Deaf and Hearing people—FFCDH is proposed to address above issues. FFCDH supports real time conversation and also allows the hearing to learn the signs with the same meaning as the deaf understand. Moreover, FFCDH records the speech of the hearing and converts it into signs for the deaf. It also provides deaf with an option to adjust volume of their speech by displaying volume of their voice. The performance of the system in supporting the deaf has been evaluated by using a real test-bed. The obtained results show that English and Japanese daily conversation phrases can be recognized with over 90 percent accuracy on average. The average coherent of simple content is over 94 percent. However, when the speech includes long and complex phrases, the average accuracy and the coherent are slightly lower because the system could not comprehend long and complex context at large scope.展开更多
Face-to-face Videoconferencing is a popular option for many large organizations because it minimizes the need for travel. Instead of continually paying for traveling expenses, a company can either pay to set up a high...Face-to-face Videoconferencing is a popular option for many large organizations because it minimizes the need for travel. Instead of continually paying for traveling expenses, a company can either pay to set up a high speed network which has many usages （including videoconferencing） or they can rent time on an existing network. Employees will also no longer be burdened with the need to travel. While face-to-face videoconferencing performance is heavily influenced by the underlying hardware and software, a good video compression scheme can help make the best use of videoconferencing and provide a high quality picture. H.263 standard is now widely used for real-time video communications over a range of networks including the Internet. A frame work for better understanding the H.263 including the implementation of encoder and decoder for face-to-face videoconferencing is presented. This software was written in C＋＋ language, running under the Microsoft Windows operating system.展开更多
文摘在英语学习中,Free talk是说的能力,书面表达是写的能力,二者互相联系又相互促进,要有机融合,才能促进英语水平的有效提高。一、初中英语书面表达现状。在初中英语质量检测中,学生词汇贫乏、句型单一、结构松散、逻辑混乱的问题普遍存在。第一,受母语的影响导致汉语式英语,类似“I by bike to school every day”的表达司空见惯。
文摘A real time communication between deaf and hearing people is still a barrier that isolates the deaf people from the hearing world. Over ninety percent of deaf children are born to hearing parents. However, most of them can only learn how to communicate using sign language at school. One of the reasons is that the hearings parents have neither enough time nor support to learn sign language to communicate and support their children. Not surprisingly, the deaf finds difficulties in the oral-only education. Since many other hearing pupils do not even know about the existence of sign language, they cannot communicate directly with the deaf without a sign language interpreter. Therefore, to enable a face-to-face conversation between deaf and hearing people, it is important not only to sustain real time conversation between the deaf and their hearing counterparts but also to equip the hearing with basics of sign language. However, speech to sign conversion remains a challenge due to dialectal and sign language variation, speech utterance and lack of sign language written form. In this paper, a solution named Face-to-Face Conversation Deaf and Hearing people—FFCDH is proposed to address above issues. FFCDH supports real time conversation and also allows the hearing to learn the signs with the same meaning as the deaf understand. Moreover, FFCDH records the speech of the hearing and converts it into signs for the deaf. It also provides deaf with an option to adjust volume of their speech by displaying volume of their voice. The performance of the system in supporting the deaf has been evaluated by using a real test-bed. The obtained results show that English and Japanese daily conversation phrases can be recognized with over 90 percent accuracy on average. The average coherent of simple content is over 94 percent. However, when the speech includes long and complex phrases, the average accuracy and the coherent are slightly lower because the system could not comprehend long and complex context at large scope.
文摘Face-to-face Videoconferencing is a popular option for many large organizations because it minimizes the need for travel. Instead of continually paying for traveling expenses, a company can either pay to set up a high speed network which has many usages （including videoconferencing） or they can rent time on an existing network. Employees will also no longer be burdened with the need to travel. While face-to-face videoconferencing performance is heavily influenced by the underlying hardware and software, a good video compression scheme can help make the best use of videoconferencing and provide a high quality picture. H.263 standard is now widely used for real-time video communications over a range of networks including the Internet. A frame work for better understanding the H.263 including the implementation of encoder and decoder for face-to-face videoconferencing is presented. This software was written in C＋＋ language, running under the Microsoft Windows operating system.
