Title :
Speech recognition for the Siemens EWSD public exchange
Author :
Littel, Bernhard ; Bauer, Josef ; Janke, Siegfried
Author_Institution :
Siemens AG, Munich, Germany
Abstract :
With the integrated voice processing system (IVPS), speech recognition capability has been made available for the EWSD public exchange. For the IVPS we designed a speaker independent, CDHMM-based IWR (isolated word recognition) system, featuring noise reduction, echo cancellation, channel adaptation, non-speech rejection and out-of-vocabulary rejection. A digit and control word vocabulary has been implemented for German, American English, French and Portuguese
Keywords :
echo suppression; electronic switching systems; hidden Markov models; natural languages; noise; speech recognition; voice equipment; American English; CDHMM-based IWR system; French; German; Portuguese; Siemens EWSD public exchange; channel adaptation; control word vocabulary; digit vocabulary; echo cancellation; integrated voice processing system; isolated word recognition; noise reduction; nonspeech rejection; out-of-vocabulary rejection; speaker independent system; speech recognition; Digital signal processing; Echo cancellers; Hardware; Hidden Markov models; Noise reduction; Signal processing algorithms; Speech coding; Speech recognition; Thyristors; Tin;
Conference_Titel :
Interactive Voice Technology for Telecommunications Applications, 1998. IVTTA '98. Proceedings. 1998 IEEE 4th Workshop
Conference_Location :
Torino
Print_ISBN :
0-7803-5028-6
DOI :
10.1109/IVTTA.1998.727716
