Design of a Low-Power Coprocessor for Mid-Size Vocabulary Speech Recognition Systems

@article{Li2011DesignOA,
  title={Design of a Low-Power Coprocessor for Mid-Size Vocabulary Speech Recognition Systems},
  author={Peng Li and Hua Tang},
  journal={IEEE Transactions on Circuits and Systems I: Regular Papers},
  year={2011},
  volume={58},
  pages={961-970}
}
Speech recognition systems have gained popularity in consumer electronics. This paper presents a custom-designed coprocessor for output probability calculation (OPC), which is the most computation-intensive processing step in continuous hidden Markov model (CHMM)-based speech recognition algorithms. To save hardware resource and reduce power consumption, a polynomial addition-based method is used to compute add-log instead of the traditional look-up table-based method. In addition, the optimal… CONTINUE READING