Implementation of Three-order Mismatch-shaping Dynamic Element Matching Techniques in Digital Loudspeaker
Guoqiang Chai · Audio Engineering · 2012
In order to further reduce the noise level,which is introduced by the inconsistencies among the frequency responses of the loudspeakers in digital loudspeaker system,three-order mismatch-shaping dynamic element matching(DEM) algorithm is designed and implemented based on previous studies.The experiment results obtained in the anechoic room show that the signal-to-noise ratio(SNR) performance of three-order mismatch-shaping DEM is better than that of second-order mismatch-shaping DEM.