A Proposed Method to Design Specialized Web Pages for Visually Impaired and Blind Students

Currently, we study, work and build social relationships and economies by employing information technology. However there is a question for people who are interested in supporting and developing education for people with disabilities: What is the impact of information technology on the lives of visually impaired people? The answer to this question has been raised to varying degrees by countries and communities that pay close attention to disability issues and give them considerable attention. Interest from societies and countries is, of course, conditioned by political, economic, and social factors that can make the needs of people with a type of welfare for some governments and communities. In this paper, a new method is introduced for developing websites for visually impaired people by employing Braille codes and the HTML language to provide audio material via the Internet following the use of specialized web pages with pre-selected curricula to support the training of visually impaired people.


Introduction
Technology is an essential factor in altering people's lives and increasing their well-being. Modern technologies are often designed for healthy people, while the number of people with disabilities and especially visually impaired people is significant. 4.5% of children belong to the category of people with disabilities throughout the world [2]. In France, approximately 100,000 people have or will have vision problems out of 750,000 annual births [3].
With such a large number of people with disabilities, researchers have presented several methods to facilitate teaching visually impaired people to reduce the differences between the educational opportunities offered to visually impaired people and their peers, the most important of which is the voice. However, this method cannot be employed in noisy public places and also to evaluate the blind online, as most speech recognition applications are not accurate enough and require a quiet place to insert text [1] [3].
In the field of education, blind or visually impaired students should have the same access as sighted students to all standards, curricula, and education to achieve the necessary levels of literacy and also high academic expectations and to become productive citizens. [3] This paper provides a method for developing educational websites to provide more educational opportunities for visually impaired students by utilizing the Internet to produce general or academic sounds to facilitate the learning process and research concepts to find techniques for supporting the education of impaired people through website development, which provides links to an electronic audio library containing books, articles, lectures and other items in audio format based on their age. This library is processed by visually impaired people trained in practicing Braille [5] [6] [7].

Proposed E-Learning Method for Visually Impaired and Blind Students
E-learning contributes to enhancing the quality of life of students [8]. Despite many attempts to develop e-learning platforms, many of these platforms are not practical for people with impaired vision; it is important to discuss the problems of applying e-learning technologies faced by students with impaired eyesight and also to understand that many of these platforms which are ineffective for people with impaired sight [9].
The Braille e-mail possesses a frequency of errors, and this issue leads to their limited application in an Internet search engine to obtain the required results, or conduct online tests in a published study.
The number of errors when entering sentences. The overall error rate was lower for the BrailleEnter keyboard (average = 14.12) compared to SingleTapBraille (average = 25.95) [1].
Therefore, the researcher proposes to prepare applications to support the learning process of visually impaired people by employing the Internet to support education or carry out tests with no design errors to ensure high quality. Several elements are considered to accomplish this task: 1. Create an index with Braille code, including the web page number and theme sequence.
A project for Webhurst and a user manual using Braille code are presented, as shown in Figure 1, using Braille characters that provide the visually impaired people access to primary, secondary, and higher education, especially in the humanities, which illustrates symbols and directions; for instance, audio files in the humanities, which can be applied to study international music by visually impaired people in musical institutions [10; 16]. A visually impaired person clicks the button corresponding to the index on the cover of the screen and then returns to the index to pick a file from the desired topic from the list, for example, music, as presented in Figure 2, which is sent to the cover of the screen to display the same code.  Web pages should be designed in a way that is completely compatible with the printable characters in the index for the ideal usage of the site, in which Braille symbols symbolize certain pages and buttons that reach the user.
2. Create a screen cover, so that people with visual impairments can choose the appropriate button on the installed screen cover using flexible buttons printed in Braille (as in the index) and read by touch, the material used on the screen cover should be as flexible as silicon [8] with a sensor located under each button. The rest of the screen should be locked and not affected by touch, as shown in Figure 3. In this figure, the circles are buttons and represent a dark area that is not affected by the sensor. Furthermore, the size of the screen corresponds to the size of the screen used. 1. How does this method work? First, users select the subject in the index and pass their finger to the corresponding symbol in the index. Then, users touch the screen cover keys to find the appropriate button for the subject code in the index. After searching for the desired button, they click this button. This page also contains several sections corresponding to the keys in the index.
Users return to the subject page in the paper index to find the header of the file they want to listen to and the key that represents it on the web page and select the button that opens the file. Therefore, an audio website is required. Figure 4 presents the steps of this method to access the audio material employing the following tools: 1. Catalogue (Braille Catalo) 2. Screen cover (for Braille) 3. Special network for the use of visual irregularities following the Braille cover design. 4. The educational institution and the programmer need to organize the audio files on the website in order that the selection of the necessary audio files is in accordance with the educational programs and ensuring that they are placed on the web page according to their order in the index. 5. It is also necessary to train and prepare visually impaired students to work with the Braille index that corresponds to the page number in the application, the sequence of audio files in the index and the sequence of buttons on the cover of the screen.  Figure 5 indicates the order of operation, which begins with a paper index and pressure on the buttons on the cover of the screen, and then, users open the web page and return to the index to pick a file for a specific object. Finally, they click on the screen cover again to access the audio file through the Internet. Note: YouTube Explorer can be employed to download the audio files used on the website. The free website to publish videos can be utilized by this website to create a channel for lessons and audio lectures, from which audio files can be downloaded. The availability to the website is free, see Figure 6. Note: One of the buttons is assigned to provide access to the website. The Braille code is practiced in English, but the Braille code of any language can be used [10] [11] [12].

TEXT-TO-SPEECH (TTS)
The purpose of a text-to-speech (TTS) system is to generate speech from a provided input text [13]. The users know what type of page they are using to avoid possible errors due to visual impairment by simultaneously pressing the buttons of specific pages and the topics for each web page by employing text-to-speech (TTS) [14; 18] technology from GOOGLE, JAVASCRIPT or others to recognize each page via automatic voice recognition.
TTS is an automatic font conversion application that utilizes digital text to synthesize a human voice. This promising technology will be a key part of supporting people with visual disabilities in the future, despite the limited support for several languages, including Arabic [15; 17]. Figure 7 presents the code used to obtain the audio identifier for a web page by pressing a specific button, which allows visually impaired visitors to recognize the content of the page.  Figure 8 shows the code used to obtain automatic voice recognition from Google, which also allows visually impaired visitors to recognize the page content. The initial challenging is expected for people with impaired vision to understand this method, and they may suffer when working with a paper index written using Braille code. Additionally, it is difficult to understand the electronic application, and Braille keyboard applied on the cover of a computer. However, continuous training with the guidance of an expert will facilitate the process, and visually impaired people will become experts in processing Braille code in the index and using the cover of Braille keyboards on a computer screen or a smartphone screen.

Conclusions
The proposed method provides people with visual impairments with the means of using information technology and enhancing their use of Internet services, especially in the learning process. The proposed method provides new support to the process of teaching people with visual disabilities and opens up new opportunities for expanding the educational process of learning, as well as public culture.