In order to predict the diesel engine radiated noise quality,a sound quality prediction method for diesel engine radiated noise is proposed in this paper based on the combination of ensemble empirical mode decomposition(EEMD),Hilbert transform(HT)and the least squares support vector machine(LSSVM).At first,the sound signals of diesel engine were sampled,filtered,decomposed by EEMD and transformed by HT;Then the corresponding intrinsic mode function(IMF)components were weighted by critical frequency band wit...