Speech Resources, Arabic Speech Processing, Speech
Interactive Self Learning Assistant
The goal of this innovative technology is to afford an effective assistance in the
self learning of spoken language.
Hafss© which has proved effective
in helping people learn
Tajweed of the glorious Qur’an
is also helpful in learning spoken Arabic and other languages as well. In fact,
RDI is cooperating with European partners about adapting it to help in learning
the less famous spoken European languages like Swedish.
After its first apparition in GITEX 2004,
Hafss© proved itself in a
large project of building
encyclopedia for the Kuwaiti ministry of endowments. The challenging feature
Hafss© is that it can detect and fully diagnose the faults – if
any – in the learner’s utterance of given examples. This closes the feedback
loop without which the learning process can never be completed.
After GITEX© 2006 and Cairo Int'l Book Fair 2007, an end-user version of
Hafss© is released for
the Arabic market esp. in the Gulf and Egypt , which is followed by another
one with English user-interface, and other versions to emerge in the future.
For that version with all its rich material and integrated interactive
auxiliary tools, RDI has been awarded the
e-Content Award first prize in
the e-Learning track from the Egyptian IT Industry Development Agency "ITIDA"
for the year 2006.
Moreover, on Sept. 15th, 2007, RDI's
technology for the interactive learning of spoken language applied on the
Tajweed of the glorious Qur'an has been declared first in the 2007
World Summit Award contest
for best e-content/e-Learning track where about 850 other candidates from 160
countries had participated.
Where to buy Hafss© ?
(JPG, 468 KB)
via the Internet.
AhKam Al-Tajweed episodes taught with the assistance of Hafss(c) by Dr. Ahmed Ragheb
For more detailed info...
Essay on Hafss in PC magazine, Mar. 2007.
(Arabic PDF, 522 KB)
Essay on Hafss in Lughat Al-Assr.
(Arabic WinRAR'ed JPG's, 216 KB)
Arabic Flash movie on Hafss.
(Arabic flash, 2,676 KB)
(Arabic Doc, 36 KB)
(Arabic PDF, 423 KB)
Arabic brochure of Hafss©
(WinZipped images, 1,520 KB)
Hafss© web site;
Arabic Text-to-Speech (TTS)
This Arabic TTS from RDI has a hybrid concatenative/parametric
speech synthesizer which affords a compact system within few
tens of mega bytes of space. Moreover,
RDI's automatic large-scale
Arabic phonetic transcriptor (diacritizer) is the other
distinctive corner stone of ArabTalk©.
Along with several diacritization options,
many speech effects in both male and female
voices are available for flexibility and high
performance in real-time.
SDK's for desktop applications, web services,
as well as client-server applications are
available for developers. Moreover, male/female
Arabic TTS speaker data bases can be built for
certain real-speakers chosen by the customer.
For more detailed info..
Arabic Flash movie on Arabic Text-to-Speech.
(Arabic flash, 3,057 KB)
Paper on ArabTalk
(PDF, 96 KB)
Essay on RDI's Arabic Phonetic Transcriptor for Arabic TTS.
(Arabic PDF, 456 KB)
Arabic Speech Processing
Egyptian Telephony ASR DB
Post-processed recordings of around 100 Egyptian
speakers from 4 different dialectical regions in
Egypt made in Orientel© styles.
The Up Streaming (via ASR) half of all kinds of
Interactive Voice Retrieval (IVR) systems.
RDI has been known for long of its pioneering CELP vocoding speech compression system that has
been awarded the Best-of-GITEX
In fact, this system that could
achieve compression ratios within 15-to-25 at a good quality,
has remained for years one of RDI's corner stones for producing
its encyclopedic Arabic multimedia that dominated the market in
the late 1990's.
After this era, RDI is working on a novel
technology for very low bit rate speech coding via a speech
re-synthesis process for mobile devices and telecom.
Response (IVR) is a computerized phone system
that enables a person, typically a telephone
caller, to make a selection from a voice menu.
The selection is made using voice interactions.
The phone system plays RDI’s text to speech
enabled voice prompts, and then the person
selects the option by spelling it, in turn the
person’s voice will be recognized via RDI’s
Arabic speech recognition technology.
This interaction allows the individual to
communicate with the phone system and thus the
computer system either to obtain information or
to process a transaction.
IVR can be used in different foundations, such
as Call Centers, Banks, Airports, Theaters, etc.
the phone into a powerful anywhere-anytime
information access tool for customers.
center queues and caller wait times.
automated self-service beyond the limits of
the traditional Interactive Voice Response.
convenience of touchtone as well as
overall customer service cost by reducing
requirements for human agents.
performance call processing and media
open-standards such as VoiceXML, CCXML and
Media Resource Control Protocol (MRCP), SIP,
and the Web.
software-only solution that runs on off
the-shelf hardware and software.
unified development environment that allows
businesses to repurpose Web investments to
deploy self-service speech applications.
can recognize the speech. Also
the platform currently includes a TTS voice to convert the text output
to a voice message.