User Interface Service Software Developerís Guide - Hitech Projects

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January 2008 Public 3.2 Deployment 3.2.1 Implicit Speech Input 3.2.1.1 System requirements Amigo OSGI framework (amigo_core, amigo_ksoap, amigo_wsdiscovery) OSGI framework OSCAR platform (can be on either linux or windows) Refer to [OSCAR req] 3.2.1.2 Download Source code available for download at [amigo_gforge]/ius/user_interface/voice_service/implicit_speech_input/ 3.2.1.3 Install The keyword spotting module is integrated into the topic recognition bundle: you need to download this bundle and install it as any other bundle into OSCAR. Then, you need to extract and uncompress a zipfile that is stored in this bundle, and run a cygwin script file, which will launch the keyword spotting software. The precise procedure is described in the user and developer guide of the topic recognition module. 3.2.1.4 Configure The keywords spotting module reads in a configuration file that defines the list of supported keywords. The keyword spotting module further needs a pronunciation lexicon for these keywords, as well as a set of speaker-dependent acoustic models. This procedure is described in details in the user and developer guide of the topic recognition module. 3.2.1.5 Compile Two different source file packages are used for implicit speech: a “light” package, that only contains the JAVA sources and that is included into the topic recognition module. This light version handles basic keyword spotting and is fully integrated within the topic recognizer. You should compile it using the ant build script of the topic recognition module. The second package contains the full set of source codes, including the Julius C speech decoder, along with several toolkits to train adapted acoustic models: this set is stored in the implicit speech repository, and is independent from the topic recognizer. To compile it, you must first compile the Julius decoder (in cygwin) using the ./configure and./make procedure. Note that this version of the decoder has been modified for the need of the project: a blank/original Julius package will not work. Then, you can use the ant build script to compile the JAVA part. 3.2.2 2D Gesture Service 3.2.2.1 System requirements OSCAR platform (can be on either linux or windows) Amigo IST-2004-004182 75/114
January 2008 Public OSGI framework The following AMIGO OSGI services should be running from the OBR before starting 2D services : • amigo_core • amigo_ksoap_binding • amigo_ksoap_export • amigo_wsdiscovery • HTTP Service (+ Amigo mods) • Servlet • Service binder • log4 3.2.2.2 Download Source code available for download. 3.2.2.3 Install The gesture capture and interpreter services are located in /amigo/ius/user_interface/gesture_service/2D_gesture_service/. Compile the two services, and copy the bundles located in dist directory to $OSCAR_HOME/bundle. The services should be started in the following order : GestureCapture then GestureInterpreter. That is because the GestureInterpreter subscribes to the gesture events sent by the first GestureCapture it finds with the lookup. In Oscar : start file:bundle/gesture-capture.jar start file:bundle/gesture-interpreter.jar 3.2.2.4 Configure Configuring the services Once the services are running, the scene should be configured by calling the setScene method of both services using a stub. Warning : don't be confused, if a scene is displayed on GestureCapture frame, it does not imply that the GestureInterpreter is configured also. One should configure it by calling the setScene method in order to interpret the gesture. The scene could be retrieved from a file or directly from a MMILEntity. An additional service called SceneConfigurator has been provided in order to show how the scene could be configured on both services. It is located in the same directory than the interpreter and capture services. The service is an OSGI service, and is launched with (in Oscar) : start file:bundle/scene-configurator.jar Once it is started, you just have to push the configure button and choose a valid scene file. The configurator will call the setScene method of interpreter and capture services. Amigo IST-2004-004182 76/114
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