|
Assistive Computer Technology | ||||
Accessability Software:Much has been done since the early days to address the needs of the Visually Impaired. A lengthy conversation with a friend and retired Computer Programmer started me on the hunt for accessability software. He was a big help in gaining an understanding of the difference between Optical Character Recognition (OCR) and Screen Character Recognition (SCR). If you have a scanner you would have had the option of installing an OCR program. This software allows you to scan a document as an image, select those blocks of text you want to recognize as text, and with the OCR engine transform that portion of image into readable, editable text. Try doing that with a pdf file. Not going to happen! The "Xerox Document Center" used an OCR engine to make the scanned document accessable to word processing, fax, and e-mail programs. An interesting concept and very powerful tool. SCR software on the other hand would recognize characters on screen and using a "text to speech" engine and a speech synthisizer to read the on screen text. Early SCR software included "DEC Talk" which used a dedicated hardware synthesizer. Ibelieve it was origionaly wrote for UNIX based systems. I am told that it read a little funny. Such software is continuing to improve all the time, and I've found that Magic, Jaws, and Windoweyes (the 3 I am most familiar with) all have a dictionary so you are able to modify the way they read certain words. I am not going to attempt to list all the SCR software out there as I might miss something. In fact I would appreciate it if someone more Knowledgable in this area shared some of their knowledge so I could include it here. Suffice to say that the computer is becomming much more accessable than it was. Windows 98 SE was packaged with a screen magnifier, and I am told that Windows XP comes with a basic speech synthesizer to help Visually Impaired users to install their own Operating System. The one truly universal document format accessable across all platforms is Html (pdfs are image files and were not readable as text until the release of "Acrobat Reader 6". Text files are at least universal across all PC based systems. I have resisted learning Html and due to another project finally gave in and began my Introduction. Boston Universities "Web Central" has a very helpful site with an Introduction and goes into Intermediate Html. There are some areas I wish they had gone into a little deeper but I was able to find other sites that seemed to clear up most of my questions. This site was origionaly done using Yahoo's "Page Builder" with no knowledge of Html. Seeing the way "Magic" reads other sites (framed sites are the worst), I have since gone back and removed a lot of table rows and cells to put larger blocks of text on each page. This has not only resulted in smaller file sizes, but I believe that Magic reads it a little more uniformly.
Apple/Mac OSX:
Linux accessibility:
Emacspeak:
Emacspeak is a speech interface that allows visually impaired users to interact independently and efficiently with the
computer.
Knoppix:
Knoppix is a Linux Operating System that runs directly off the Cd rom. For current Windows users this has the advantage of giving you
a look without having to make major changes to your system. On accessability, there is a utility that creates a bootable floppy with Braille Terminal support. There is also an ISO bootable
Knoppix image
available for download (697 Mb) that is speach enabled with support for external hardware synthesizers.
Windows Accessability SoftwareI had an interesting link sent to me a couple of days ago. On free accessability software there is a company in Canada that is offering their speach enabled magnification program as a free download on their web site. iZoom from Issist (Canada), you can download it from: http://www.issist.com/index.asp?page=iZoom The downloadable link at this location is for Windows 2000 and XP. I am still using Windows 98 SE and am in no hurry to change. When I contacted Issist and queried them about support for other operating systems, I did not get an answer on that particular issue. I will download "izoom" check it out and post my findings here.
A I Squared
Arkenstone Inc. (now operating as:Benetech)
Arkenstone, Inc. was founded in 1989 as a 501(c)(3) nonprofit organization providing reading tools for people with disabilities. For over a decade, it delivered these tools to over 35,000 individuals in 60 countries. In 2000, Arkenstone business operations were sold to Freedom Scientific which now sells three products originally developed by Arkenstone: OpenBook scanning/reading software for people who are blind and low vision, WYNN scanning/reading software for people with reading challenges, and the integrated VERA reading machine for people who are blind and low vision. After the sale, Arkenstone changed its name to Benetechan innovative Silicon Valley nonprofit that uses the Arkenstone model to develop technology projects addressing major social problems in areas such as disability, human rights, literacy, education, and the digital divide. Its first two projects are the Bookshare.org online library of accessible digital books for people with disabilities and The Martus Human Rights Bulletin System, a technology tool to assist grassroots human rights workers worldwide to collect, safeguard and disseminate information on human rights abuses. Benetech continues to be led by Arkenstone founder, Jim Fruchterman, and includes the former Arkenstone engineering team. For more information about Benetech, please visit www.benetech.org
Blazie Engineering
Sells Hardware & Software for Visually Impaired. Braille 'N Speak, portable note takers, Braille Printers and displays.
Freedom Scientific
A merger of: Henter- Joyce, Arkenstone, and Blazie Engineering.
Henter-Joyce Inc.
Product demos available on the website Sells JAWS (Job Access With Speech) and MAGIC, a screen magnification program. All three of the companies are accessible from the Freedom Scientific web site.
G W Micro
Sells Vocal-Eyes for use with a speech synthesizer available for Dos and Window Eyes. Also a Dealer for other company's adaptive technology. Microsoft"MS Speech" - Microsoft's speech synthesis program. While I haven't checked, I am certain that MStts can be downloaded at the Microsoft website. I have found MStts packaged as an alternative SAPI synthesizer on the Jaws, Window-eyes, and Magic Cd's. I have run across other SAPI synthesizers while looking for OCR programs (most proprietory to that particular program) so this is only the tip of the ice berg. Windows 98 SE came with a screen magnifier that could be installed as part of their accessability option Windows XP comes with a synthesizer to aid blind users in the installation of their Operating System.
While this is not specificly "Accessability Software" it was interesting enough for me to include it here:
| ||||
|
|
|
to this page. Thank You. |
|
Email:
[email protected] | ||