INTEGRATION OF AN HTK SPEECH RECOGNIZER WITH OPEN VXI AND AN ASTERISK BASED VOICE XML GATEWAY



Lerato Lerato, Molise Mokhomo, Thato Pebane and Lerato Mohapi, Department of Mathematics and Computer Science
National University of Lesotho.

Abstract

VoiceXML is one of the most popular markup languages used in commercial IVR systems. It is still not possible to find the fully functional open source VoiceXML gateway that helps researchers enhance the VoiceXML IVR technology. It is essential that a free 
and open source VoiceXML IVR platform that meets all the W3C standards is designed and made available so that the quality of IVR systems can be consistently improved at the justifiable cost. This paper introduces the VoiceXML gateway that comprises the integration of OpenVXI and an Asterisk telephony platform;focusing on the addition of the HTK-based speech recognition capability of the system. Finally, the paper reports the successful implementation of a recognition interface that conforms to the SRGS specification.

 

 

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