Conferences : FOSS.IN and NCIDEEE

FOSS.IN 2009 starts on 1st December. I wanted to attend all 5 days but I have another conference on Dec 1st to 3rd at Chennai. I am attending National Conference on ICTs for the differently- abled/under privileged communities in Education, Employment and Entrepreneurship 2009 – (NCIDEEE 2009) at Loyola College, Chennai. So I will miss the first 3 days of We have a workout on Project Silpa during I am also planning to have a workout with Debayan and Jinesh to get his tesseract-indic OCR work with Malayalam. [Read More]

Dhvani 0.94 Released

A new version of Dhvani -The Indian Language Text to Speech System is available now. The new version comes with the following improvements/features Support for 11 languages- Hindi, Panjabi, Gujarati, Marati, Bengali, Oriya, Telugu, Kannada, Tamil , Malayalam and Pashto(Afganistan) Pitch and Tempo modification for speech Direct ogg-vorbis speech output and optional wav output format C/C++ APIs for applications to use dhvani as a shared library. [Read More]


zabeehkhan was trying to code a Pashto (ps_AF) module for dhvani. And he told me that “it is not saying anything” :). So I took the code and found the problem. Dhvani has a UTF-8 decoder and UTF-16 converter. It was written by Dr. Ramesh Hariharan and was tested only with the unicode range of the languages in India. It was buggy for most of the other languages and there by the language detection logic and text parsing logic was failing. [Read More]


/* say_namaskaar.c * This is a sample C code using dhvani text to speech API which I am * developing now and planning to release soon. New version of dhvani * will provide a shared library libdhvani and it allows other C or C++ * applications to use dhvani synthesizer. Tamil and Marathi modules, pitch, tempo * control etc are the features for the coming release. * I need to prepare documentation, fix many bugs, test, commit the files in cvs . [Read More]

Dhvani Now Speaks Marathi

Thanks to Rahul Bhalerao , he wrote the Marathi module for dhvani– The Indian Language Text to speech System. Dhvani can speak 10 Indian languages now: Bengali, Gujarati, Hindi, Kannada, Malayalam, Marathi, Oriya, Panjabi, Tamil, and Telugu. Rahul also gave some patches for hindi module and for some other bugs. The code is available in CVS. The automatic language detection algorithm will not work for Marathi since it uses the devanagari script and I have assigned the unicode range used for language detection to Hindi. [Read More]

Can’t Speak? Dhvani will speak for you!

Dhvani can help not only blind users but also dumb users. I will explain how dhvani act as your mouth using KMouth. Kmouth is as KDE Accessibility Appllication and it act as a test to speech front end. KMouth is a program that enables persons that cannot speak to let their computers speak. It includes a history of spoken sentences from which the user can select sentences to be re-spoken. It learns the words the user wrote and have autocompletion. [Read More]

Dhvani – KDE Integration.

It is possible integrate Dhvani Indian Langauge TTS to KDE desktop through its TTS system KTTS. Using this you can dhvani can read the text in kate,kedit,kwrite, Konqueror. You can even listen to the text in the webpages in Konqueror Dhvani can be itegrated to KTTS using its Command plugin feature. To do this go to control center–>Regional and Accessibility –>Text-to-speech –>Talker Tab. Add a new Synthesizer. Select the syntesizer type as Command and Langauge as Other. [Read More]

Creating audio books using Dhvani

Dhvani can be used for creating audiobooks in any of the supported languages(Hindi, Malayalam, Telugu, Kannada, Oriya, Bengali, Gujarati, Panjabi). First of all you should get the latest dhvani source code from CVS in sourceforge. Compile it and install. To create an audiobook follow these steps You need the text in utf-8 format. No need to specify the langauge. Dhvani will detect the langauge automatically. <br /> dhvani -o audiobook.wav textfile<br /> oggenc -B 16 -C 1 -R 16000 audiobook. [Read More]

FOSS India Awards

Dhvani is a winner of FOSS India Awards 2008.

There are 20 winners and more details here.

Indic support for Tuxtype project by Mobin and friends is also a winner. Congrats Mobin and Congrats to all winners!!!

And Thanks to LFY and NRCFOSS

Dhvani rewrite

I started a re-write on Dhvani architecture, keeping the algorithm same. This is based on Kiss principle. Instead of client server architecture a single executable is my plan. This will help me to integrate it with KTTS, kate etc. Now I know how to integrate Dhvani with KTTS.

Studied autoconf and automake for this…

More and more items in my TODO list…