It is object code compatible with the industry standard 805 1 microcontroller. Selecting the 805 1 core rather than a DSP core is a two-edged knife. Thc principal benefit is that this speech recognition SOC with the 8051 core costs at least ten times lower than that with a DSP core. So it is preferable for the low price consumer products. But th: digital
signal processing power of 8051 is so limited that realizing the high performance speech recognition, even small vocabulary, isolated word recognition, on it is a challenge. Not only the speech recognition algorithms must be simplified to fit the source limit of 8051, which likely results in performance degradation, but also some effective methods are necessary to overcome the channel distortion and low signal-to-noise ratio conditions with which the applied systems confront frequently