This project aims at developing a robot on a field programmable gate array, which can perform
tasks by taking the user’s voice commands. The robot has two wheels for locomotion and IR
sensors. It can also autonomously direct itself according to the obstacles coming in its path with the
help of IR sensors. The objective is to make the robot to recognize a limited set of commands for
giving directions (typically 4), and move accordingly. Mel-frequency cepstral coefficients are used
as the features that represent the input voice-commands and dynamic time warping algorithm is
implemented for the recognition of the commands. The entire voice-command recognition module
has both hardware and software components. The software runs on MicroBlaze, a 32-bit soft-core
processor from Xilinx. A hardware-software co-design of a voice-command feature extraction circuit
is implemented and validated on Spartan-6 FPGA. It is also compared against a complete softwarebased
implementation and a complete hardware-based design
