Abstract: Application of gray correlation analysis method to speech/music discrimination based on statistic features of short energy root mean square(RMS) is presented.Steps of the method are described.The characteristic values of comparative and referenced data are then realized.Discri-mination criterions are defined and speech/music is recognized.Simulation results indicate that the described algorithm is more effective and accurate than that introduced in the literature based on one and two features in real-time multimedia applications.