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= Setup = == Setup ==
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== Debian installer == === Debian installer ===
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== Installation and configuration on a usual Debian system == === Installation and configuration on a usual Debian system ===
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 1. {{{sudo aptitude install gnome-orca}}} (you can also install gnome-mag, if you need also magnification)
 1. Type as the user {{{ orca -t }}}
 1. Answer all questions. After this, Orca will automatically start at user session start.
  * If it doesn't, see the [[accessibility|main accessibility page]].
 1. {{{sudo aptitude install gnome-orca}}}
 1. In a graphical session, open a terminal or press {{{Alt+F2}}} and type {{{orca -s}}} to start the setup. If you are unable to do so, it is best to enable [[accessibility#Autostart_Of_Orca|the autostart of Orca]] and run the setup with Orca support with the command {{{orca -r -s}}}.
 1. In the dialog(s), you can select the options you like, including Orca modifier, etc. After this procedure, Orca should start automatically.
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== Magnification == === Magnification ===
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The configuration of Orca (with the option '''-t''') doesn't ask whether Orca should use the magnification. For this you have to open the Orca preferences (Orca key +Space), go to the tab magnification and activate the magnification.

= Using Orca (applications) =

A list of supported applications can be found at
http://live.gnome.org/Orca/AccessibleApps.
Orca does not offer magnification itself, however a variety of solutions exist, which are documented [[accessibility##Full_Screen_magnification_support|here]]
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Orca currently mainly supports Firefox (DebianPkg:iceweasel) to access web pages. You can use text browsers in the terminal as well, but they have obviously less comfort. Orca has support for two rendering engines, Gecko and WebKit. The former is used within DebianPkg:firefox and has the best support. There are several WebKit browsers and they work to a certain degree, but cannot be considered production-ready with Orca yet. You need to press F7 in those browsers to activate caret browsing.
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The only difference on Debian is that you need to use Iceweasel instead of Firefox. The standard GNOME web browser Ephany is not accessible. Alternatively, there are several text-mode browsers for the console available too, but they are obviously less convenient.
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= Other speech synthesizers =
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Please see the main [[accessibility]] page, where GNOME-speech and speech-dispatcher are discussed. == Other speech synthesizers ==
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= Newer, experimental versions of Orca = Orca uses a backend service called DebianPkg:speech-dispatcher to access various speech synthesizers. If you want to tweak available options, please see [[accessibility#Speech-Dispatcher|the Speech-Dispatcher section]].
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If you don't want to compile Orca from source but still try a newer version (at your own risk), you can use the version from experimental. For this, you have to configure [[AptPreferences|apt-pinning]]. Add a experimental-source of Debian, update your package lists and run == Newer, experimental versions of Orca ==

If you don't want to compile Orca from source but still try a newer version (at your own risk), you can try using the version from unstable (or if available, from experimental). For this, you have to configure [[AptPreferences|apt-pinning]]. Add a Debian unstable / experimental-source of Debian, update your package lists and run
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sudo aptitude -t experimental install gnome-orca sudo aptitude -t unstable install gnome-orca
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WARNING: Experimental really means experimental.

NOTE: You might have to reconfigure Orca, since a new mechanism for the configuration handling was introduced in Orca.
WARNING: unstable and experimental aren't have their names without reason!
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= See Also = == See Also ==

Translation(s): Deutsch - English - Español - Français - Italiano


This article mentions some details about Orca (GNOME-ORCA) in Debian. Orca is the graphical screen reader for the GNOME environment.

Setup

Debian installer

If you have enabled accessibility during the Debian installation and also installed a desktop system, accessibility is enabled by default and you only have to install Orca. This only works for GNOME, Mate, Cinnamon and Unity at the moment, but can be activated manually. See the section on autostarting Orca.

Installation and configuration on a usual Debian system

If you installed Debian without accessibility features, you should do the following steps:

  1. sudo aptitude install gnome-orca

  2. In a graphical session, open a terminal or press Alt+F2 and type orca -s to start the setup. If you are unable to do so, it is best to enable the autostart of Orca and run the setup with Orca support with the command orca -r -s.

  3. In the dialog(s), you can select the options you like, including Orca modifier, etc. After this procedure, Orca should start automatically.

Magnification

Orca does not offer magnification itself, however a variety of solutions exist, which are documented ?here

Browsing

Orca has support for two rendering engines, Gecko and ?WebKit. The former is used within firefox and has the best support. There are several ?WebKit browsers and they work to a certain degree, but cannot be considered production-ready with Orca yet. You need to press F7 in those browsers to activate caret browsing.

Alternatively, there are several text-mode browsers for the console available too, but they are obviously less convenient.

Other speech synthesizers

Orca uses a backend service called speech-dispatcher to access various speech synthesizers. If you want to tweak available options, please see the Speech-Dispatcher section.

Newer, experimental versions of Orca

If you don't want to compile Orca from source but still try a newer version (at your own risk), you can try using the version from unstable (or if available, from experimental). For this, you have to configure apt-pinning. Add a Debian unstable / experimental-source of Debian, update your package lists and run

sudo aptitude -t unstable install gnome-orca

WARNING: unstable and experimental aren't have their names without reason!

NOTE: It is possible, that after this the gdm greeter is not any longer able to start Orca at the login screen.

See Also