Features/Text To Speech In The Toolkit
Summary
Sugar have a global text to speech feature, you can select any text and do TTS with the device in the frame or with a keystroke.
But activities also do TTS for specific cases. Some activities doing it are Clock, Read, Memorize or Write.
There are a lot of code copied in every activity to implement it.
Owner
- Name: Gonzalo Odiard
- Email: godiard at sugarlabs.org
Current status
- Targeted release: 0.104
- Last updated: 2014-07-18
- Percentage of completion: 0%
Detailed Description
These are the functionalities needed by the activities
say(text,[voice], [pitch], [rate])
- voice, pitch and rate are optionals, if not set use the default values configured.
- Return a id to enable pause and stop
pause(id)
stop(id)
get_languages()
- Return array of translated language names (to show in the UI),
- and the voice name related in the backend.
get_voice(lang)
- lang is a language code
- Return the best voice name available for the language.
Activities using TTS
- Clock
- say the time in the default voice
- Memorize
- user can select the language and the game say text in the selected voice.
- games based on Art4apps do TTS if a sound file is not available.
- Read
- The user can select a languages from a list and make the activity do TTS on the text using that voice
- The user can pause and stop
- Speak
- The user can select a languages from a list, pitch and rate, and make the activity do TTS on the text using that voice
- The user can pause and stop
- Story
- TurtleBlocks
- Write
- The user can select a languages from a list and make the activity do TTS on the text using that voice
- The user can pause and stop
Benefit to Sugar
Easier implementation of TTS in activities. Right now, there are a lot of code, usually implementing TTS with more than one backend, and with code copied from other activities.
Faster startup of activities. Initialize gstreamer takes a substantial time.
Scope
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UI Design
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How To Test
User Experience
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Dependencies
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Contingency Plan
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Documentation
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Release Notes
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Comments and Discussion
- Link to the discussion of this feature on lists.sugarlabs.org
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