Hi Sayamindu,<br>thanks for quick reply!<br>There is a lot of text to speech software out there - I use <a href="http://www.bytecool.com/coolspch.htm">http://www.bytecool.com/coolspch.htm</a> that you can try trial and download additional voices, just to get a feeling, but it is not free and not for linux. Many other programs are more complex and complicated and some of them use very complex voice engines that in my opinion doesn't sound very good. (I use Mary voice with cool speech)<br>
<br>OK I spent some time to find all TTS software that is free for linux and here are some links:<br><br><a href="http://linux-sound.org/speech.html">http://linux-sound.org/speech.html</a> <br><a href="http://linuxhelp.blogspot.com/2006/01/festival-text-to-speech-synthesis.html">http://linuxhelp.blogspot.com/2006/01/festival-text-to-speech-synthesis.html</a><br>
<a href="http://larswiki.atrc.utoronto.ca/wiki/Software">http://larswiki.atrc.utoronto.ca/wiki/Software</a> - see the links under Speech section<br><a href="http://www.xenocafe.com/tutorials/php/festival_text_to_speech/index.php">http://www.xenocafe.com/tutorials/php/festival_text_to_speech/index.php</a><br>
<a href="http://www.wikihow.com/Convert-Text-to-Speech-on-Linux">http://www.wikihow.com/Convert-Text-to-Speech-on-Linux</a><br><a href="http://www.cstr.ed.ac.uk/projects/festival/">http://www.cstr.ed.ac.uk/projects/festival/</a><br>
<a href="http://www.cstr.ed.ac.uk/projects/festival/onlinedemo.html">http://www.cstr.ed.ac.uk/projects/festival/onlinedemo.html</a> - listen to some demo voices<br><a href="http://sourceforge.net/projects/dhvani/">http://sourceforge.net/projects/dhvani/</a> - this one not english<br>
<a href="http://sourceforge.net/projects/tts-cubed/">http://sourceforge.net/projects/tts-cubed/</a><br><a href="http://www.speech.cs.cmu.edu/hephaestus.html">http://www.speech.cs.cmu.edu/hephaestus.html</a> - click the links in Speech Synthesis section<br>
<a href="http://www.speech.cs.cmu.edu/comp.speech/Section5/Synth/rsynth.html">http://www.speech.cs.cmu.edu/comp.speech/Section5/Synth/rsynth.html</a><br><a href="http://www.linux.com/archive/feature/122197">http://www.linux.com/archive/feature/122197</a> - two readers - plug-ins for firefox.<br>
<br>I can not test them because I'm not a linux user. Maybe you can modify some of these software (probably Festival) for more user friendly reading and maybe program a specific button on XO keyboard that will automatically read the selected text no matter what program is used for opening the text.<br>
<br>Judging from google search result for DTBooks, this technology is not spread at all. The other problem is that it uses somtimes recorded audio and the size of that is too large for XO... I think the most important is that TTS works with reader that will open<a href="http://www.xconomy.com/boston/2009/10/24/internet-archive-opens-1-6-million-e-books-to-olpc-laptops/"> 1.6M e-books from internet archive</a>(are you in this team?).<br>
<br>Also one important thing is to add cheap headphones with laptop so children could listen to reading without desturbing others and in the noisy environments ... another advantage of audio reading is much longer battery life because you can turn off LCD monitor and audio alone does not consume much energy.<br>
<br>Let me know what you think.<br>All the best,<br>Gregor<br><br><br><br><div class="gmail_quote">On Mon, Oct 26, 2009 at 4:08 PM, Sayamindu Dasgupta <span dir="ltr"><<a href="mailto:sayamindu@gmail.com">sayamindu@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi Gregor,<br>
Thanks a lot for jumping in :-)<br>
<div><div></div><div class="h5"><br>
On Mon, Oct 26, 2009 at 2:38 AM, Gregor Kervina<br>
<<a href="mailto:gregor.kervina@gmail.com">gregor.kervina@gmail.com</a>> wrote:<br>
> Dear Sayamindu Dasgupta, SJ Klein and other members of this list,<br>
><br>
> I'm a student of electrical engineering from Europe and would like to share<br>
> with you my very positive experience with text to speech technology that can<br>
> in my opinion significantly increase the educational potential of XO if used<br>
> in the right way.<br>
><br>
> For the past 12 years (since I was 15 years old) I'm daily learning from<br>
> e-books and internet using text to speech software. I know this software is<br>
> unpopular in developed world, many people don't even know that it exists. On<br>
> the other hand many people (including me) don't like reading long texts on<br>
> the LCD screens - that's why e-books are also not very popular.<br>
><br>
> But unlike my friends I read 50+ e-books every ear and also daily news on<br>
> the internet - I just select the text, copy it, and CoolSpeech software<br>
> (using Mary voice) reads me all the text with speeds 300 to 500 words per<br>
> minute. In this way I can browse other sites or look at photos or just lay<br>
> down and listen while my laptop is reading to me.<br>
> Other people don't understand what I'm reading because it is too fast for<br>
> them but it can be learned quickly with slower speeds at beginning.<br>
><br>
> I think XO laptops should definitely have such software pre-installed and a<br>
> video introduction how to use it and what reading speeds can they expect<br>
> after some time of practicing.<br>
> It is also ideal for children with poor eye sight.<br>
><br>
<br>
</div></div>This sounds awesome. Could you let us know if the text to speech<br>
software you have in mind is free/opensource and if it works on Linux<br>
?<br>
I am also looking at DTBooks specifications for digital talking books<br>
- do you know how useful/widespread this technology is ?<br>
<br>
Thanks,<br>
Sayamindu<br>
<font color="#888888"><br>
<br>
--<br>
Sayamindu Dasgupta<br>
[<a href="http://sayamindu.randomink.org/ramblings" target="_blank">http://sayamindu.randomink.org/ramblings</a>]<br>
</font></blockquote></div><br>