Voice Recognition Robotic Car

Chia, Clement Kuan You (2013) Voice Recognition Robotic Car. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The idea for this project is to develop a voice recognition system that recognized five commands to control a robotic car. The focus area for this project is mainly on software parts which is the voice identification and recognition system. The aim of the system was not recognizing a lot of words but only isolated word and to demonstrate the system on a simple built robotic car. The system allows user to input voice commands through a microphone to control the movement of the car. Voice command is sent to computer and computer will process and compare the signal with signal stored in database using Vector Quantization (VQ) technique. Mel-wrapping filter bank in feature extraction was used to reduce the root mean square amplitude noise amplitude and improve signal to noise ratio. Experiment was conducted to compare the distance used to recognize voice command and signal to noise ratio (SNR) of the voice recognition system. Result showed that the SNR was improved and analysis was done on the experiment conducted. After that the output of the recognition system was transferred to Arduino UNO for demonstration of executing the command. The robotic car can be controlled by 5 basic voice command which is stop, forward, reverse, turn left and turn right by integrating source code in MATLAB with Arduino UNO microcontroller.

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