Abstract: DIVA (Direction Into Velocities of Articulators) model can be more accurately described as a mathematical model, it shows the role of the human brain regions involved in speech production and understanding. With high accuracy and openness, this model in recent years has been studied by various concerns. But we find the simulation have some access with realistic physiological processes because that the voice processing is too complex. Thus, this study uses another delay mechanism, which is constant delay mechanism, makes its workflow more reasonable and having a realistic sense of simulation results. In the simulation experiment, after introducing the new delay module, the speech process is satisfactory and closer to the physiological processes.