The SOPC implementation of a keyword spotting algorithm based on biomimetic pattern recognition

A keyword spotting algorithm based on biomimetic pattern recognition is proposed in this paper, including the modeling algorithm and the recognition algoithm. Then the SOPC implementation of the algorithm is given using software and hardware co-design mothodology. The design of two hardware acceleration units are discussed in detail in this paper as well as their contribution to system performance in term of speed. Practical test indicates that this design fully makes use of the characteristic of FPGA and the algorithm proposed, enabling the keyword spotting system implemented to run fast and in real time.