Computer based system control using voice input

Speech recognition is the perception of human voice by computer or electronic devices. Using speech recognition we can give voice commands to an electronic device. Simple control of a hardware device by voice commands via computer is aimed at this project. Also speaker recognition is performed in the project.In this thesis, theory of speech processing and recognition is told briefly. As feature extraction method, mel frequency cepstrum coefficients and as comparison method between speeches, dynamic time warping methods are used. For speaker recognition the same methods are also used.Speech is recorded via microphone into the computer and computer program recognizes the speech command and by serial port, appropriate output is activated on the designed hardware according to the spoken command.All work is done on computer on MATLAB software. Speech is recorded, processed and given output to the hardware by MATLAB.