Community
Radio Stations use publicVoiceXML
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Inside
publicVoiceXML
PublicVoiceXML is designed to be used by SMEs, and it
works nicely on low cost telephony hardware. The protocol
handling is making use of ISDN-CAPI, which works fine
e.g. with the ISDN B1 active card from AVM. Analog lines
are currently not supported, as too many country/telco
specific cases for DDI or disconnect handling would
need to be taken into account. The VoiceXML browser
is written in C++ and is well-commented with explainations
of each function, as well as nice logging features.
PublicVoiceXML
supports all "must-have" tags of the VoiceXML
2.0 specs, however we have not yet implemented speech
recognition. A list of tags supported can be found here
http://www.publicVoiceXML.org/PVX-Tag-Schedule.htm .
A pre-release running on Windows platforms has been
published on SourceForge in December 2002 (https://sourceforge.net/projects/publicvoicexml/).
The beta version for Linux will be available end of
1Qu03, which we are stress testing now together with
affiliated radio stations. The consortium has decided
to perform the W3C implementation report (http://www.w3.org/Voice/2003/ir/voicexml20-ir.html)
and will use the results as a feedback for further developments.
Most
of the trial applications were built on a basic framework
developed within the project. This framework uses PHP
as a middleware, Postgres database (through PEAR database
abstraction layer), and Smarty template engine for the
generation of HTML and VoiceXML pages. This results
in clean PHP code, and the separation of presentation
from business logic. HTML templates can be edited by
designers without the need for programming skills, and
VoiceXML scripts can be fine-tuned without touching
PHP code.
Demonstrations at community radio stations
InterviewBox
At
the biggest European fair for Research on Information
Society Technologies, the IST-2002-Event, November 4
Ð 6, 2002 in Copenhagen, Team Teichenberg and Public
Voice Lab were running the official Event Radio at the
exhibition. Together with Damian Payton from BBC the
consortium delegation from Vienna made interviews at
many presentation stands by using the PublicVoiceXML
interview box. This application creates wav-files out
of recorded telephone-conversations. The collected audio-content
with astonishing good quality is accessible via a web
interface, ready for downloading and further use like
adding to a playlist passed on to a stream (http://teichenberg.at/eutist-ami/).
With a refined and tuned version of the InterviewBox,
Radio Orange 94.0, Public Voice Lab and Team Teichenberg
managed the reporting on the general elections in Austria
on November 24, 2002. At the former election events
the production of reports was much more complicated
because of manual coordination of live in-bound telephone
interviews taking place at different locations. This
time every interviewer-team was assigned to one specific
phone number to call to in order to record to an associated
InterviewBox. Based on that the producers and editors
in the radio studio could easily handle the load of
audio-material by pre-listening to the finished interviews
and creating playlists for the on-air-programme. Via
an official website, other community radio stations
in Austria were able to download the recorded files
and to integrate them into their reports on the general
election. (http://nrw.pvl.at, use account guest/guest)
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