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Features/Global Text To Speech

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Revision as of 11:38, 15 November 2011 by FGrose (talk | contribs) (moved Features/GlobalTextToSpeech to Features/Global Text To Speech: deCamelcase to enable search)


Contents

Summary

When the user press Alt+Shift+S the currently selected text should be said by the computer.

Owner

Current status

  • Targeted release: 0.96
  • Last updated:
  • Percentage of completion:

Detailed Description

A few activities implement Text to Speech, but Sugar itself has a feature not fully implemented to do text to speech in Sugar.

Most of the code is already done. Currently, if the user select a text in any activity, and press Alt+Shift+S, in shell.log you can see:

1321360323.039468 DEBUG root: _key_pressed_cb: 39 9 <alt><shift>s
1321360323.090568 DEBUG root: owner_change_cb
1321360323.090857 DEBUG root: Clipboard.add_object
1321360323.093460 DEBUG root: ClipboardTray: 1 was added
1321360323.094790 DEBUG root: KeyHandler._primary_selection_cb: 'hola'
1321360323.099433 DEBUG root: Asking for target text/rtf.
1321360323.100389 ERROR dbus.proxies: Introspect error on org.laptop.Speech:/org/laptop/Speech: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name org.laptop.Speech was not provided by any .service files
1321360323.100704 DEBUG dbus.proxies: Executing introspect queue due to error
1321360323.102645 ERROR root: An error occurred with the ESpeak service: DBusException(dbus.String(u'The name org.laptop.Speech was not provided by any .service files'),)

We already have the code to implement text to speech in Read, Memorize and Speak activities.

A device should be implemented in the frame, to enable the user to select pitch and velocity.

More information:

http://wiki.laptop.org/go/Speech_Server

http://wiki.laptop.org/go/Speech_synthesis

Tickets:

http://dev.laptop.org/ticket/7911

http://dev.laptop.org/ticket/7906

http://dev.laptop.org/ticket/7907

Benefit to Sugar

Text to speech is a good feature to kids, when they are learning to read, and to kids with disabilities

Scope

The change is isolated.

UI Design

I propose use de default language now, and only expose controls to set pitch and velocity. In a later change, we can implement have more than one language enabled, and a switch to change it.

The UI will be a device in the frame, with the needed controls in the palette.

How To Test

User Experience

Dependencies

We already include all the needed dependencies.

Contingency Plan

Documentation

Release Notes

Comments and Discussion