IEEE patent Review

For this lab session we were divided into groups of five and we have to implement a practical application of the DSP.
Problem Definition:  Speech Recognition system. Individually we have to review one IEEE paper and one patent on the above topic.
Patent: US5715369
The patent selected talked about the testing system of speech recognition depending on different parameters such as voice gender, volume etc. A system having a host processor and a memory device where  memory contains audio files. The Vocabulary need to expand in response to previously known phrases and capturing the output from the said speech.

Paper: 
SPEECH RECOGNITION SYSTEM OF ARABIC DIGITS BASED ON A TELEPHONY ARABIC CORPUS

In  this paper automatic recognition of spoken digits is done. Spoken digit recognition is used in many applications such as airline reservation, telephone dialing. The Arabic language is different from the European languages. The pronunciation of the digits from zero to nine also differ. A hidden Markov model toolkit is used to implement the isolated word recognizer.