- Emacspeak is an Emacs subsystem that allows
-the user to get feedback using synthesized speech.
-
- Screen reading programs allow a visually impaired user to get
-feedback using synthesized speech. Such programs have been
-commercially available for well over a decade. Most of them run on
-PC's under DOS, and there are now a few screen-readers for the
-Windows platform. However, screen-readers for the UNIX environment
-have been conspicuous in their absence.
-
- This means that most visually impaired computer users
-face the additional handicap of being DOS-impaired :-)
-
- Emacspeak is an emacs subsystem that provides basic speech access.
-Emacspeak will always have the shortcoming that it will only work
-under Emacs. This said, there is very little that cannot be done
-inside Emacs, so it's not a real shortcoming:-) Within Emacs, you can
-open a "shell window" where you can run commands and examine their output,
-even output which has scrolled out of the window. Emacs provides
-special modes for running certain commands. For example, it can parse
-error messages printed by a compiler and open a separate edit window
-with the cursor at the point of the error. It can also run a debugger
-and keep a separate edit window open at the point in the source code
-corresponding to the program counter.
-
- Emacspeak does have a significant advantage: since it runs inside
-Emacs, a structure-sensitive, fully customizable editor, Emacspeak
-often has more context-specific information about what it is speaking
-than its commercial counterparts. In this sense, Emacspeak is not a
-"screenreader", it is a subsystem that produces speech output. A
-traditional screen-reader speaks the content of the screen, leaving
-it to the user to interpret the visually laid-out information.
-Emacspeak, on the other hand, treats speech as a first-class output
-mode; it speaks the information in a manner that is easy to
-comprehend when listening.
-
- This initial version provides a basic speech subsystem for Emacs;
-using Emacs' power and flexibility, it has proven straightforward to
-add modules that customize how things are spoken, e.g. depending on
-the major/minor mode of a given buffer. Note that the basic speech
-functionality provided by Emacspeak is sufficient to use most Emacs
-packages effectively; adding package-specific customizations makes
-the interaction much smoother. This is because package-specific
-extensions can take advantage of the current context.
-
- Emacspeak will only work with emacs. However, emacs can be used to
-run any program that has a command-line interface (ls, cd, rm,
-adduser, etc.). In general use M-x shell to run such programs.
-
- You can even run those like less or lynx which use escape sequences
-to control the appearance of the screen. The key to this is term
-mode, which you get with the emacs command M-x term.
-
- Let me insert here some explanation, because the word "terminal" is
-used in several senses. The original terminal was of course an
-electromechanical device that translated keystrokes into character
-codes and received the same codes and printed the characters.
-Eventually these were replaced by entirely electronic "dumb terminals"
-which also implemented escape sequences to clear the screen, move the
-cursor, etc. Unix adapted to these by introducing an abstract notion
-of a "terminal" with very general capabilities. A program like a text
-editor issues generic commands, which are translated into
-the commands suitable for your terminal. The choice of translation is
-controlled by the variable "TERM" in the environment. One common
-value for this variable is "vt100", since many terminals implement the
-same commands as the DEC VT100. The Emacs command `M-x term' starts a
-virtual terminal with its own set of cursor commands. It notifies the
-operating system of this by setting the environment variable "TERM" to
-the value "eterm" (which is why it is sometimes called eterm mode).
-
- Note that this Unix "terminal" is concerned only with escape
-commands for the display. Let me just mention a couple of other kinds
-of "terminal" to distinguish them from the Unix concept: For DOS,
-there are "terminal emulators" like COMMO and TELIX that simulate a
-terminal, and can be used to connect to a remote computer via a serial
-port (and usually a modem). That is, they accept keystrokes and send
-the character codes out a serial port, and receive character codes
-from the serial port and display them. Unix has similar programs,
-such as minicom and seyon. Both DOS and Unix have another program
-called "telnet" which can establish a similar connection to a separate
-computer using the Internet (that is, a TCP/IP connection rather than
-a serial connection). The program "kermit" is available for both DOS
-and Unix, and can establish either kind of connection. However, none
-of these should be confused with the eterm mode of emacs. There is
-nothing about eterm mode that implies a connection to a remote
-computer.
-
- Note that in most cases there is an emacs mode that works better
-than the separate program in an eterm buffer. That is, instead of
-"less", just open a buffer on the file. Instead of "lynx", use w3.
-Instead of "man", use `M-x man', and type the name of the program in
-the minibuffer.
-
- Remember, though: ordinary command-line oriented programs are best
-run in shell mode, which starts with the command `M-x shell'.
-
- Emacs is a large program, but it does not all have to be in RAM,
-because Linux has virtual memory. You can designate a swap partition,
-so that programs (or parts of programs) can be swapped out when they
-are not being used. You can comfortably run emacs with 8 MB of ram
-plus 8 MB of swap space.
-
-This document is limited to the following:
-
-
-Linux (not Free BSD)
-The Slackware distribution (not Red Hat, Debian, etc.)
-Speech output only (not Braille - see the Access HOWTO)
-DECtalk (Dectalk Express and
-MultiVoice), DoubleTalk, LiteTalk,
-Braille 'n Speak, Type 'n Speak,
-Braille Lite, Apollo, and Accent
-synthesizers (--not the SmarTalk, a sound card, etc.)
-Use of Emacs, with T. V. Raman's Emacspeak package, to drive the
-synthesizer.
-
-
-The use of adaptive technology with Linux, and in
-particular, using adaptive technology to make Linux accessible to
-those who could not use it otherwise, is covered in the Linux Access
-HOWTO.
-
-If you would like to help extend this document to cover one or more of
-the other alternatives, or point me to a discussion
-somewhere else, please contact me.
-
-The most recent version of this document should be available in
-several formats at and its mirrors
-(see below). The plain text version should be available at .
-
-Emacspeak was written by T. V. Raman .
-
-Emacspeak supports several speech synthesizers. The software required
-depends on which you have.
-
-If you have a DECtalk Express or MultiVoice, you need the basic
-Emacspeak package, tcl (an interpreter), and tclx (extensions for
-tcl). You can get the source package for Emacspeak from the Emacspeak
-web page.
-You can also get a binary package for a Red Hat distribution, either
-from the Emacspeak web page or one prepared by Matt Campbell.
-I maintain binary packages for the Debian distribution.
-At this writing, the most recent
-release of Emacspeak is version 13.0. Here are some URLs:
-
-
-
-
-
-
-
-
-Note: there are European mirrors of the blinux site which you should use if they closer:
-
-
-
-
-
-For the internal DECtalk PC, you also need a kernel driver which is
-available from
-
-
-Extract it with the command: `tar xfz dectalk_pc-0.91.tgz'
-and then follow the installation instructions found in the README file.
-This driver apparently works with both the original DECTALK-pc and the new
-DECTALK-PC II.
-
-For the external DoubleTalk, LiteTalk, Accent, or Apollo synthesizers,
- or for the Braille 'n Speak, Type 'n Speak, or Braille Lite
- devices in "speech box" mode, you need the Emacspeak
-package and a separate "speech server" which comes in the emacspeak-ss package:
-
-
-
-
-For the internal DoubleTalk, you need three pieces of software: the
-basic Emacspeak package, the emacspeak-ss package, and
-a device driver. The device driver is
-now part of the official Linux kernel sources. Use version 2.2.17 or
-later, and configure with "Double Talk PC internal speech card
-support" either compiled into the kernel or installed as a module
-(dtlk.o).
-
-There is a server for the Braille 'n Speak,
-Braille Lite, and Type 'n Speak devices used in "speech box" mode:
-
-
-
-
-
-Once again, the emacspeak-ss server handles all the synthesizers other
-than the DECtalk. You should use that one if you don't mind
-building and installing a source package.
-
-Computer hardware, Unix user commands, Unix system administration,
-Emacs, and Emacspeak are each substantial subjects. Attempting to
-learn all of them at once is likely to lead to frustration. Instead,
-I suggest that the new user go through a sequence of stages, learning
-about only one system at a time.
-
-Stage 1. DOS with speech
-
-Most blind computer users have DOS or Windows, a speech synthesizer,
-and a screen reader program like JAWS []. (References in this format refer to entries in
-the "Footnotes and References" section below.) Using this setup,
-install and become familiar with some terminal emulator like Telix
-[] or Commo [], which are available from the SimTel
-archive [] among others.
-
-Getting Linux on CDROM
-
-If you have or can borrow a CDROM drive, I recommend you get one of
-the many good distributions of Linux on that medium. The instructions
-below are for the Slackware distribution. I am most
-familiar with disks from
-Linux Central [].
-Other sources are InfoMagic [] and Walnut Creek [] (where the whole idea of
-inexpensive CDROMs full of programs from Internet archives got its
-start). Linux distributions are also available from Red Hat
-[], Craftwork [], and Yggdrasil []. As a rule, these CDROMs use the
-"ISO 9660" format, which can be read under DOS. (They also use the
-"Rock Ridge extensions" which add extra files in each directory.
-Linux uses the extra information to give you long filenames, both
-upper and lower case characters in filenames, and file permissions.)
-
-Getting Linux by FTP
-
-Another way to get Linux and its documentation is by FTP over the
-Internet. The home site for the Slackware distribution is Walnut
-Creek []. It is
-also carried by metalab (formerly known as sunsite) and many of it
-mirror sites. Here is a partial list:
-
-
-USA (home site)
-UK/Europe
-Japan
-Taiwan
-Hong Kong
-USA
-USA
-
-
-More sites are listed in the INFO-SHEET:
-
-
-
-
-
-
-Linux Documentation
-
-Read the Linux documentation. I will quote here the file names and
-locations on the first disk of InfoMagic's December 1996 "Developer's
-Resource" set of six CDROMs, as seen under DOS. Other CDROM sets
-should have similar information, though perhaps differently arranged.
-The Slackware distribution is on disk 2 of the set. Matt Welsh's step
-by step guide to installing Slackware is in
-]. Within the SimTel collection, look for
-directory msdos/textutil. For example, try .
-
-I will suggest four alternatives for learning Emacs commands (see
-section []). The
-first option is to install Emacs under DOS and learn it while using
-the DOS screen reader. Where to get Emacs for DOS is a "frequently
-asked question" [].
-
-The source code for Emacs (about 10 MB) can be gotten from (look for emacs-19.34b.tar.gz or
-similar), or from one of many mirrors of the GNU collection [].
-
-Stage 2. Terminal to remote UNIX system
-
-
-Arrange for what is called a "shell account" on some Unix
-system. Most Internet Service Providers (ISPs) can provide this
-service. Use the terminal emulator program and a modem to
-dial in. Learn the basic Unix commands. If the system has Emacs
-installed, or you can persuade the system administrator to install it,
-this is your second chance to learn it. It is probably best to learn
-it at this point, because administering a Unix system (the next stage)
-will call for you to edit files. Therefore, I include here my
-suggestions for learning both Unix and Emacs.
-
-Learning Unix