Go To Program 38 On the Use of Channel Shortening in Multichannel Acoustic System Equalization Wancheng Zhang 1 Emanuel Habets 1 Patrick Naylor 1 1 Electrical and Electronic Engineering, Imperial College London, London, United Kingdom This work investigates the use of channel shortening (CS) in equalization of acoustic systems. Channel shortening techniques have been extensively developed in the context of digital communications and applied to acoustic systems. However, at this point of time, the use of CS for acoustic system equalization has not been well established. A mathematical link between the MINT and the traditional CS is derived. In multichannel scenarios, CS can provide multiple solutions but not all of them are useful in the sense of perceptual quality. Therefore, a criterion for spelling out a perceptually advantageous equalization system from the multiple solutions to CS is provided. Relaxed multichannel least-squares (RMCLS) method is presented and simulations confirm that the RMCLS outperforms CS in the presence of channel estimation errors. View pdf