[Sugar-devel] Regarding the Sugar Labs Text to Speech feature.

[Gonzalo Odiard]

Maybe you can test festival to start and check if can be used in the same
way we use
the gstreamer plugin or improve the festival gstreamer plugin?

Gonzalo

On Fri, Oct 3, 2014 at 7:17 PM, Nurendra Choudhary <
nurendrachoudhary31 at gmail.com> wrote:

> ya, even i like the idea of using festival
>
>
> On Sat, Oct 4, 2014 at 2:43 AM, Gonzalo Odiard <godiard at sugarlabs.org>
> wrote:
>
>> Gracias Flavio.
>> Hace mucho que no pruebo Festival, voy a probarlo.
>>
>> Gonzalo
>>
>> On Fri, Oct 3, 2014 at 6:07 PM, Flavio Danesse <fdanesse at gmail.com>
>> wrote:
>>
>>> Creo que para hacer esto lo mejor sería utilizar gstreamer directamente
>>> a través de su plugin para "festival".
>>> Festival es software libre y ya tiene un montón de voces listas para
>>> utilizar e incluso se pueden utilizar voces de otros proyectos similares.
>>> Si quieres probar, tienes que instalar festival y el plugin para
>>> gstreamer que se encuentra en gstreamer-tools.
>>> Luego ejecutas en una terminal: festival --server
>>> y en otra lo pruebas con: echo 'Hello World!' | gst-launch-0.10 fdsrc
>>> fd=0 ! festival ! wavparse ! audioconvert ! alsasink
>>>
>>> La web de Festival es: http://www.cstr.ed.ac.uk/projects/festival/
>>> La de festvox es: http://www.festvox.org/
>>>
>>> PD:
>>> En diversos sitios web hay abundante material sobre como instalar un
>>> montón de voces compatibles, e incluso como crear nuevas.
>>>
>>> 2014-10-03 16:29 GMT-03:00 Gonzalo Odiard <godiard at sugarlabs.org>:
>>>
>>>> Hi Nurendra,
>>>> Certainly there are many thinks we can do connected with text to speech.
>>>> We use the "espeak" [1] utility, included in the linux distributions,
>>>> and a gstreamer plugin to use it from python.
>>>> Text to speech is used in many activitieas, and also in Sugar itself,
>>>> you can select any text and press a icon in the frame or press a
>>>> shortcut
>>>> and the text is played. You can see the code here [2]
>>>> We call that "Global text to speech" [3]
>>>> Right now, I want move part of that code to the toolkit (the library
>>>> shared by Sugar,
>>>> and the activities, to avoid code duplication) [4]
>>>>
>>>> Where we can get help?
>>>> * Better voices: espeak is very robotic.There are other free voices
>>>> with better quality?
>>>> Can be used in devices with modest capabilities like the xo?
>>>>
>>>> * I found a project on debian repository to compile svox-pico,
>>>> used in Android. The voices are very nice, but I don't know if is
>>>> possible distribute it.
>>>> You can compile it in Fedora doing:
>>>>
>>>> git clone -b upstream+patches git://
>>>> git.debian.org/collab-maint/svox.git svox-pico
>>>> git checkout -f origin/debian-sid
>>>> cd pico
>>>> ./autogen.sh
>>>> ./configure
>>>> make
>>>> make install
>>>>
>>>> And can create a wav file wih the text doing:
>>>>
>>>> pico2wave   --wave=/tmp/test.wav "hello world"
>>>>
>>>> To be able to use this, we would need package all this are rpms,
>>>> and create a gstreamer pluggin to use it.
>>>> Not so easy, but a nice project ;)
>>>>
>>>> * Other project could be improve our text to speech feature to be able
>>>> to highlight word by word while are played, like in "sing along" videos
>>>> [5]
>>>> At least in part was implemented on Read activity when reading text
>>>> files,
>>>> but need implementation in PDF and epub files.
>>>> I tried implementing in epub files but was very slow and lost sync
>>>> between
>>>> the audio and the view.
>>>>
>>>> There more things to do if you are interested.
>>>> We found text to speech is a powerful tool. Kids enjoy simple
>>>> activities
>>>> as Speak (or no so simple if look at the robot part), and we even use
>>>> TTS in our word processor as a way to allow kids to "debug writing"
>>>> as Claudia Urrea say.
>>>>
>>>> If you are interested, let me know and I will try tto help.
>>>>
>>>> Regards,
>>>>
>>>> Gonzalo
>>>>
>>>>
>>>> [1] http://espeak.sourceforge.net/
>>>> [2]
>>>> https://github.com/sugarlabs/sugar/blob/master/src/jarabe/model/speech.py
>>>> [3] http://wiki.sugarlabs.org/go/Features/Global_Text_To_Speech
>>>> [4] http://wiki.sugarlabs.org/go/Features/Text_To_Speech_In_The_Toolkit
>>>> [5] https://www.youtube.com/watch?v=J1QeShToq-E
>>>>
>>>> On Fri, Oct 3, 2014 at 3:34 PM, Nurendra Choudhary <
>>>> nurendrachoudhary31 at gmail.com> wrote:
>>>>
>>>>> Hi,
>>>>> I am a Computational Linguistics student at IIIT hyderabad and can
>>>>> code in python, c,c++ and also work with various frameworks.
>>>>> I would like to work on the Text to Speech feature. Can you help me
>>>>> start?
>>>>>
>>>>> - Nurendra Choudhary
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Gonzalo Odiard
>>>>
>>>> SugarLabs - Software for children learning
>>>>
>>>> _______________________________________________
>>>> Sugar-devel mailing list
>>>> Sugar-devel at lists.sugarlabs.org
>>>> http://lists.sugarlabs.org/listinfo/sugar-devel
>>>>
>>>>
>>>
>>
>>
>> --
>> Gonzalo Odiard
>>
>> SugarLabs - Software for children learning
>>
>
>


-- 
Gonzalo Odiard

SugarLabs - Software for children learning
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