Acoustic Beam forming and Speech Recognition using Microphone Array

Abstract

This report contains a piece of work on array signal processing for microphone array beamforming and its usability in NI PCI 4461 data acquisition system. Microphone arrays have great potential in practical applications of speech processing, due to their ability to provide both noise robustness and hands-free signal acquisition. Here for sound and vibration analysis we require data acquisition systems and this data acquisition system consists of sensors DAQ systems and processer with programmable software and here we have used NI PCI 4461 system to study sound using two microphones. Furthermore this report also presents the work on fundamental speech recognition process where we can verify that the speaker by testing phase and training phase.